JP7189826B2 - Safety management method and safety management system for harbor quays - Google Patents

Description

TECHNICAL FIELD The present invention relates to a safety management method and a safety management system for harbor quays.

Conventionally, there is known a safety management method for preventing objects such as containers placed on a quay from being swept away by waves that run over the quay of a harbor when a storm surge occurs.

For example, in Patent Document 1 below, an emergency protective device having a plate-shaped protective weir that can rotate around a horizontal axis is installed on the embankment, and the protective weir is laid down in normal times when a storm surge does not occur. On the other hand, a method has been disclosed in which, when a storm surge occurs, the protective weir is rotated from a fallen position to stand up, and the raised protective weir prevents drifting objects from flowing out into the sea.

JP 2015-224538 A

By the way, when a storm surge does not occur, cargo is loaded and unloaded from a ship at the quay of a harbor. Since the gigantic protective weir lies on the quay in a fallen posture when the quay is not normally open, there is a risk that a place for loading and unloading cargo cannot be secured on the quay, and the loading and unloading work is hindered.

In addition, during normal times when storm surges are not occurring and cargo is not being loaded and unloaded from ships, cars may drive or park on the wharf of the port. From a management point of view, it is required to prevent automobiles from accidentally falling from the wharf into the sea. However, with the emergency protective device disclosed in Patent Document 1, it is difficult to prevent a car from falling from a quay into the sea by the protective weir that is in a laid down position in normal times.

SUMMARY OF THE INVENTION It is an object of the present invention to prevent automobiles from falling from a quay into the sea in normal times, to prevent objects placed on the quay from flowing out to sea in the event of a storm surge, and to prevent cargo from being loaded onto and unloaded from ships. To provide a safety control method and a safety control system at a wharf of a harbor which do not hinder loading and unloading work.

A method for safety management at a harbor quay provided by the present invention includes: burying a plurality of fixed pipes in the quay so as to line up along the sea-side edge of the quay and extend in the vertical direction; each of which is vertically movably inserted into a space inside a corresponding one of the plurality of fixed pipes; and the plurality of insertion pipes are positioned above the fixed pipes when cargo is loaded or unloaded onto a ship. and placing the plurality of insertion pipes at a height position during loading and unloading, which is a predetermined height position that allows loading and unloading of cargo on the ship, and in normal times, the plurality of insertion pipes are higher than the height position during loading and unloading. It is fixed at an upper height position and the plurality of insertion pipes are fixed at a car stop height position that protrudes above the quay from the space inside the corresponding one of the plurality of fixed pipes, and the plurality of insertion pipes are used to secure the quay. To prevent automobiles from falling into the sea from above, to install a protective fence at an installation position above the plurality of fixed pipes so as to extend along the edge of the quay on the sea side when a storm surge occurs, The plurality of insertion pipes are arranged at an outflow prevention height position above the car stop height position, the protection fence is fixed to the corresponding one of the plurality of insertion pipes, and the protection fence is on the quay and preventing the placed object from flowing out to sea. The concept of “burying multiple fixed pipes in the quay and inserting multiple insertion pipes into the space inside the corresponding one of the multiple fixed pipes” includes After that, a plurality of insertion tubes are respectively inserted into the spaces inside corresponding ones of the embedded plurality of fixation tubes, as well as a plurality of fixation tubes in which each of the plurality of insertion tubes is pre-inserted into the inner space. Burying pipes in the quay is also included.

In this safety management method, the height positions of the plurality of insertion pipes are switched among three height positions of the loading/unloading work height position, the car stop height position, and the outflow prevention height position. The above objects can be achieved. Specifically, during normal times, by arranging and fixing a plurality of insertion pipes at the car stop height position, the plurality of insertion pipes protruding above the quay can prevent cars from falling from the quay into the sea, and high tides. When an accident occurs, a plurality of insertion pipes are arranged at the above-mentioned outflow prevention height position, and a protective fence fixed to the corresponding one of the plurality of insertion pipes can prevent the objects placed on the quay from flowing out to the sea. When loading and unloading cargo, by arranging a plurality of insertion pipes at the above-mentioned height position during loading and unloading work, it becomes possible to load and unload cargo on the ship at a position above the fixed pipe on the quay. can be unobstructed by the insertion tube.

In the safety management method, the protective fence includes casters that can roll on the quay, and a caster for supporting the protective fence on the quay so as to prevent movement of the protective fence due to rolling of the casters. When a storm surge occurs, the protective fence can be moved on the quay to the installation position by rolling the casters, and the stand can support the protective fence at the installation position. preferable.

In this way, the protective fence can be easily moved to the installation position above the fixed pipe by the rolling of the casters, and after the protective fence is placed at the installation position, the stand supports the protective fence on the quay. It is possible to prevent the protective fence from moving due to the rolling of the casters.

Moreover, the safety management system provided by the present invention is installed on the wharf of a harbor. This safety management system includes a plurality of fixed pipes embedded in the quay along the edge of the quay on the sea side and extending in the vertical direction, and corresponding ones of the plurality of fixed pipes. A plurality of insertion pipes respectively inserted into the inner space so as to be able to move up and down; a protective fence configured to be movable on the quay; The plurality of insertion pipes are fixed at the car stop height position when they are arranged at the car stop height positions projecting above the quay from the space inside the plurality of fixed pipes to the extent that the movement of the automobile can be blocked. An insertion pipe fixing device configured to be switchable between a fixed state and a released state for releasing the fixing, and an installation position above the fixed pipe so that the protective fence extends along the edge of the quay on the sea side. and when the plurality of insertion pipes are positioned at an outflow prevention height position above the car stop height position, the protective fence is fixed to the corresponding one of the plurality of insertion pipes and the a holding device for holding the insertion tube at the outflow prevention height position. In the space inside each of the plurality of fixed pipes, the insertion pipe inserted into the inner space is at a height position below the height position of the car stop and above the fixed pipe on the wharf. It has a depth to allow it to be lowered to a loading/unloading height position to allow cargo to be loaded/unloaded onto the vessel at that position.

In this safety management system, the height positions of the plurality of insertion pipes are switched among three height positions of the loading/unloading work height position, the car stop height position, and the outflow prevention height position. The above objects can be achieved. Specifically, during normal times, a plurality of insertion pipes are arranged at the above-mentioned car stop height position, and the plurality of insertion pipes are fixed by an insertion pipe fixing device in a fixed state to prevent cars from falling from the quay into the sea. It can be prevented by a plurality of insertion pipes at the car stop height position, and when a storm surge occurs, the plurality of insertion pipes are arranged at the outflow prevention height position, held by a holding device, and fixed to the corresponding one of the plurality of insertion pipes. It is possible to prevent objects placed on the quay from flowing out to the sea by the protective fence, and when loading and unloading cargo on a ship, a plurality of insertion pipes are arranged at the height position during the loading and unloading work above the fixed pipe on the quay. In this position, the cargo can be loaded and unloaded from the vessel, and the cargo unloading operation can be prevented from being hindered by the insertion tube.

The protective fence includes casters that can roll on the quay, a support posture that supports the protective fence on the quay so as to prevent movement of the protective fence due to rolling of the casters, and rolling of the casters. It is preferable to have a stand configured to be able to take a retracted posture away from the quay so as to allow the movement of the protective fence due to the movement of the fence.

According to this configuration, the protective fence can be easily moved to the installation position above the fixed pipe by the rolling of the casters while the stand is in the retracted posture. By placing the stand in a supporting posture, the protective fence can be supported on the quay by the stand, and the protective fence can be prevented from moving due to the rolling of the casters.

As described above, according to the present invention, it is possible to prevent automobiles from falling from the wharf into the sea in normal times, and to prevent objects placed on the wharf from flowing out to the sea in the event of a storm surge. To provide a safety control method and a safety control system at a quay wall of a harbor which do not interfere with the loading and unloading work of cargo when loading and unloading cargo.

FIG. 2 is a diagram of a state in which a safety management system according to an embodiment of the present invention is installed on a quay wall in an outflow prevention mode when a storm surge occurs, viewed from the sea toward the quay wall. FIG. 2 is a top view of the quay on which the outflow prevention type safety management system shown in FIG. It is a figure which shows the state which is. It is the figure which looked toward the quay from the sea in the state installed in the quay in the form of the car stop which the safety management system by one Embodiment of this invention usually takes. It is the figure which looked at the quay in which the safety management system of the form of a car stop shown in FIG. 3 was installed from upper direction. FIG. 1 is a view from above of a state in which the safety management system according to one embodiment of the present invention is installed on a quay in a configuration during loading and unloading work for loading and unloading cargo onto and from a ship, and is an operation of loading and unloading cargo from the quay to the ship; is a diagram showing a state in which FIG. 6 is a cross-sectional view of the wharf along the line VI-VI in FIG. 5 on which the safety management system in the unloading mode shown in FIG. 5 is installed; 1. It is a figure which shows one protective fence which comprises the safety management system of the outflow prevention form shown in FIG. 1, the fixed pipe which fixes the protective fence, an insertion pipe, and an insertion pipe fixing device. It is the figure which looked at the protective fence shown in FIG. 7 from the arrow VIII direction. It is a front view of a single guard fence in a movable form. It is the figure which looked at the structure of insertion pipe fixing device vicinity shown in FIG. FIG. 4 is a diagram showing one fixing tube, one insertion tube, and one insertion tube fixing device that constitute the safety management system in the form of a wheel stop shown in FIG. 3 ; 12 is an enlarged view partially showing the vicinity of the insertion tube fixing device in FIG. 11; FIG. FIG. 7 is a diagram showing one fixing tube, one insertion tube, and one insertion tube fixing device that constitute the safety management system in the form of unloading work shown in FIG. 6 ; 14 is an enlarged view partially showing the vicinity of the insertion tube fixing device in FIG. 13; FIG. It is a figure for demonstrating the process which shifts a safety management system to a bollard form. It is a figure for demonstrating the process which shifts a safety management system to a bollard form. FIG. 4 is a diagram for explaining the process of shifting the safety management system to an outflow prevention mode; FIG. 4 is a diagram for explaining the process of shifting the safety management system to an outflow prevention mode; FIG. 4 is a diagram for explaining the process of shifting the safety management system to an outflow prevention mode; FIG. 4 is a diagram for explaining the process of shifting the safety management system to an outflow prevention mode; FIG. 4 is a diagram for explaining the process of shifting the safety management system to an outflow prevention mode;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

A safety management system 1 according to an embodiment of the present invention is installed on a quay 100 of a port, and has an outflow prevention form (Fig. 1 and FIG. 2), a car stopper form that prevents the automobile 104 from falling into the sea from the quay 100 in normal times (see FIGS. 3 and 4), and the sea side of the quay 100 when loading and unloading the cargo 107 on the ship 106. 5 and 6) to permit loading and unloading of cargo 107 onto vessel 106 at a position on quay wall 100 adjacent edge 100a of the quay.

Specifically, as shown in FIG. 1, the safety management system 1 according to this embodiment includes a plurality of protective fences 2, a plurality of holding devices 3, a plurality of fence fixing devices 4, and a plurality of insertion tube fixing devices 5. and

Each of the plurality of protective fences 2 extends in a certain longitudinal direction and is installed on the quay 100 in a posture along the sea-side edge 100a (see FIG. 2) of the harbor quay 100 in the longitudinal direction. The plurality of protective fences 2 are arranged side by side along the seaside edge 100a of the quay 100 at installation positions on the upper surface of the quay 100 adjacent to the seaside edge 100a of the quay 100 . Each protective fence 2 is configured to be movable along the upper surface of the quay 100 . As shown in FIG. 7, each protective fence 2 includes a plurality of receiving pipes 12, a connecting portion 13, a plurality of casters 14, a plurality of stand support portions 15, a plurality of stands 16, and a plurality of posture fixing members. 17 and.

The plurality of receiving pipes 12 are arranged side by side at intervals in the longitudinal direction of the protective fence 2 and extend in the vertical direction orthogonal to the longitudinal direction, and are capable of receiving the later-described insertion pipes 54 of the fence fixing device 4. each enclosing a receiving space 19 (see FIG. 17). In this embodiment, each guard fence 2 has two receiving pipes 12 .

Each receiving tube 12 has a hollow cylindrical shape, and its upper and lower ends are open. Each receiving tube 12 has two outer holes 12a (see FIG. 17) passing through the tube wall of the receiving tube 12 concerned. These two outer holes 12a are provided in the receiving pipe 12 at positions slightly above a base plate 20, to which the receiving pipe 12 is fixed, which will be described later. Also, the two outer holes 12a are provided at the same height position, and are provided at positions facing each other in the radial direction of the receiving pipe 12. As shown in FIG. Specifically, the two outer holes 12a are provided at positions facing each other in the longitudinal direction of the protective fence 2 .

The connecting portion 13 connects the plurality of receiving pipes 12 to each other. By connecting the plurality of receiving pipes 12 to each other with the connecting part 13, when the placed object 102 on the quay wall 100 is swept away by the undertow and collides with the connecting part 13 when a storm surge occurs, one pipe can be inserted. Not only the bearing strength of the tube 54 alone, but also the total bearing strength of the plurality of insertion tubes 54 inserted into the receiving spaces 19 inside the plurality of receiving tubes 12 makes it possible to withstand the impact load of the object 102 . ing.

The connecting portion 13 has a plurality of base plates 20 , a plurality of struts 21 , a plurality of beams 22 , a plurality of end plates 23 and a plurality of connecting portions 24 .

Each of the plurality of base plates 20 is a flat plate arranged substantially horizontally and has a rectangular shape when viewed from above. In this embodiment, the connecting portion 13 has two base plates 20 . The two base plates 20 are spaced apart in the longitudinal direction of the protective fence 2 . Each base plate 20 is arranged so that its longitudinal direction coincides with the longitudinal direction of the protective fence 2 . Each base plate 20 has two through-holes (not shown) penetrating through the base plate 20 in the vertical direction (thickness direction of the base plate 20). One of the two through-holes is provided in the center of the base plate 20, and the other through-hole is provided at a position closer to the outside in the longitudinal direction of the protective fence 2 than the one through-hole. . Each of the receiving pipes 12 is inserted into one of the through holes provided in the center of the corresponding base plate 20, passes through the base plate 20, and is fixed to the base plate 20 in a posture extending upward from the base plate 20.

A plurality of struts 21 are installed on corresponding base plates 20 to support a plurality of beams 22 . In this embodiment, each guard fence 2 has two posts 21 . Each post 21 has a cylindrical shape and is inserted into the other through-hole provided in the corresponding base plate 20 at a position closer to the outer side in the longitudinal direction of the protective fence 2 to pass through the base plate 20 and extend from the base plate 20. It is fixed to the base plate 20 so as to extend upward. Since each post 21 is fixed to the corresponding base plate 20 in this manner and each receiving tube 12 is fixed to the corresponding base plate 20 as described above, each receiving tube 12 is connected to the corresponding base plate 20. are connected to corresponding struts 21 .

The plurality of beams 22 extend in the longitudinal direction of the protective fence 2, respectively. In this embodiment, the connecting portion 13 has eight beams 22 . Four beams 22 out of the eight beams 22 are arranged on one side with respect to the two columns 21 in the width direction of the protective fence 2, which is the horizontal direction orthogonal to the longitudinal direction of the protective fence 2, and the remaining The four beams 22 are arranged on the other side of the two columns 21 in the width direction of the protective fence 2 . 7 and 9 show only four beams 22 arranged on one side with respect to the two support columns 21 among the eight beams 22, and the other side with respect to the two support columns. The remaining four beams 22 located on the side are hidden behind the four beams 22 and not shown.

The four beams 22 arranged on one side of the two columns 21 are vertically spaced apart, and the remaining four beams 22 arranged on the other side of the two columns 21 are also Similarly, they are spaced vertically. In this way, the beams 22 are vertically spaced apart and the two receiving pipes 12 are spaced apart in the longitudinal direction of the protective fence 2, so that when a storm surge occurs, the quay wall 100 is surmounted. Seawater is discharged to the sea side through the space between the beams 22 and the space between the receiving pipes 12, while the outflow of the objects 102 on the wharf 100 can be prevented.

Also, each beam 22 is fixed to the two pillars 21 . Both ends of each beam 22 in the longitudinal direction protrude outward from the two columns 21 .

A plurality of end plates 23 are attached to respective longitudinal ends of the corresponding beams 22 to cover the ends of the beams 22 . In this embodiment, the connecting portion 13 has eight end plates 23 . The end plate 23 straddles the longitudinal end of each beam 22 and the corresponding longitudinal end of the beam 22 adjacent to the beam 22 in the width direction of the protective fence 2 with the support 21 interposed therebetween. are fixed to the ends of their beams 22 at the ends thereof. The end plates 23 connect the ends of the beams 22 adjacent to each other with the strut 21 interposed therebetween.

A plurality of connecting portions 24 respectively connect corresponding receiving pipes 12 and struts 21 adjacent thereto. In this embodiment, the connecting portion 13 has two connecting portions 24 . Each connecting portion 24 is an elongated member extending in the vertical direction. Each connection portion 24 is interposed between the corresponding receiving pipe 12 and the support 21 adjacent thereto and is joined to the receiving pipe 12 and the support 21 by welding or the like, thereby connecting the corresponding receiving pipe 12 and the support 21 to each other. It connects with the support pillar 21 adjacent to it. The lower end of the connecting portion 24 is positioned above the outer hole 12a so as not to prevent the pin portion 64 of the inserting member 44, which will be described later, from being inserted through the outer hole 12a.

With the above configuration of the connecting portion 13, in each protective fence 2, the two receiving pipes 12 are connected to each other via the two base plates 20, the two connecting portions 24, the two struts 21 and the eight beams 22. there is

The plurality of casters 14 are configured to roll on the quay 100 along the upper surface of the quay 100 . The protective fence 2 can move on the quay 100 along the upper surface of the quay 100 by the rolling of the plurality of casters 14 . Each protective fence 2 has 12 casters 14 in this embodiment. Specifically, six casters 14 are attached to each of the two base plates 20 . 7 and 9 show only three casters 14 out of the six casters 14 attached to each base plate 20, and the remaining three casters 14 are hidden behind the three casters 14. Not represented. Each caster 14 protrudes downward from the base plate 20 and is attached to the base plate 20 so as to be rotatable about a vertical axis.

Three casters 14 out of the six casters 14 are attached to the base plate 20 at positions on one side with respect to the receiving pipe 12 and the strut 21 in the width direction of the protective fence 2, and arranged side by side in the longitudinal direction of the protective fence 2. It is In addition, the remaining three casters 14 are attached to the base plate 20 at positions opposite to the three casters 14 with respect to the receiving pipe 12 and the support 21 in the width direction of the protective fence 2, and extend in the longitudinal direction of the protective fence 2. placed side by side. The distance between the three casters 14 arranged on one side with respect to the receiving pipe 12 and the strut 21 and the remaining three casters 14 arranged on the opposite side is determined by The width of the recess 101b is greater than the width of the recess 101b. 14 is set so as to avoid being fitted into the recess 101b.

A plurality of stand support portions 15 (see FIGS. 7 and 9) support the stand 16 so that the corresponding stand 16 can assume a support posture and a retraction posture, which will be described later. In this embodiment, each guard fence 2 has two stand supports 15 . The two stand support portions 15 are fixed to portions near both ends in the longitudinal direction of the two lowest beams 22 among the plurality of beams 22 of the protective fence 2 . Each stand support portion 15 has a pair of support plates 32 (see FIG. 8).

A pair of support plates 32 respectively hangs down from portions near the longitudinal ends of the corresponding beams 22 of the two lowest beams 22 . Each of the pair of support plates 32 is provided with a supporting posture fixing hole 32a, a retracted posture fixing hole 32b (see FIG. 7), and a shaft insertion hole 32c. The support posture fixing hole 32a, the retraction posture fixing hole 32b, and the shaft insertion hole 32c penetrate the support plate 32 in its plate thickness direction (the width direction of the protective fence 2).

The support posture fixing hole 32a is a hole through which the posture fixing member 17 is inserted in order to fix the stand 16 in a support posture (see FIG. 7), which will be described later. The supporting posture fixing hole 32 a is provided at a portion near the lower end of the supporting plate 32 . The support posture fixing holes 32a provided in each of the pair of support plates 32 are positioned to face each other in the width direction of the protective fence 2. As shown in FIG.

The retracted posture fixing hole 32b is a hole through which the posture fixing member 17 is inserted in order to fix the stand 16 in a retracted posture (see FIG. 9), which will be described later. The retraction position fixing hole 32b is provided in the support plate 32 at a position closer to the outer side in the longitudinal direction of the protective fence 2 than the support position fixing hole 32a and above the support position fixing hole 32a. The retracted posture fixing holes 32b provided in each of the pair of support plates 32 are located at positions facing each other in the width direction of the protective fence 2. As shown in FIG.

The shaft insertion hole 32c is a hole through which a stand shaft 71 (described later) of the stand 16 is inserted. The stand 16 is supported by the pair of support plates 32 by inserting stand shafts 71 (to be described later) into shaft insertion holes 32c provided in the pair of support plates 32, respectively. The shaft insertion hole 32c is provided in the support plate 32 above the support posture fixing hole 32a and at a position closer to the inner side in the longitudinal direction of the protective fence 2 than the retraction posture fixing hole 32b. The shaft insertion hole 32c is an elongated hole extending substantially parallel to a straight line connecting the support posture fixing hole 32a and the retraction posture fixing hole 32b, and allows the stand shaft 71 inserted therein to rotate about the axis. It also allows the stand shaft 71 to be displaced in the extending direction of the shaft insertion hole 32c. The shaft insertion holes 32c provided in each of the pair of support plates 32 are positioned to face each other in the width direction of the protective fence 2. As shown in FIG.

The plurality of stands 16 prevent the movement of the protective fence 2 along the upper surface of the quay 100 due to the rolling of the plurality of casters 14 when the protective fence 2 is placed on the quay 100 . It is for supporting the protection fence 2 with respect to the upper surface of the quay 100. FIG. Each protective fence 2 has two stands 16 in this embodiment. Each stand 16 has a support posture (see FIG. 7) that supports the protective fence 2 against the upper surface of the quay 100 so as to prevent the protective fence 2 from moving due to rolling of the plurality of casters 14 of the protective fence 2. , and a retraction posture (see FIG. 9) away from the upper surface of the quay wall 100 so as to allow the movement of the protective fence 2 by the rolling of the plurality of casters 14 .

Each stand 16 is erected on the upper surface of the quay wall 100 in its supporting posture, and each caster 14 does not touch the ground slightly, or each caster 14 does not substantially bear the weight of the protective fence 2. Support 2. When the safety management system 1 takes the outflow prevention form and each protective fence 2 is installed at its installation position, each stand 16 is made to take this supporting posture.

Further, each stand 16 extends substantially horizontally along the longitudinal direction of the protective fence 2 away from the upper surface of the quay 100 in its retracted posture so as not to hinder the movement of the protective fence 2 along the upper surface of the quay 100. It has become. When moving each protection fence 2, each stand 16 is made to take this retreat posture.

Each stand 16 has a stand shaft 71, a pair of leg portions 72, a grounding portion 73, and a pair of reinforcing portions 74, as shown in FIG.

The stand shaft 71 extends in a direction perpendicular to the pair of support plates 32 of the stand support portion 15 (the width direction of the protective fence 2), and the stand 16 moves between the support posture and the retraction posture around the stand shaft 71. The support plates 32 are inserted through the respective shaft insertion holes 32c so as to be rotatable therebetween. Both ends of the stand shaft 71 protrude outward from the pair of support plates 32 .

The pair of leg portions 72 are each made of a rectangular flat plate, and are arranged on both outer sides of the pair of support plates 32 of the stand support portion 15 along the support plates 32 . Each leg portion 72 is provided with a shaft fixing hole 72a and a fixing member insertion hole 72b passing through the leg portion 72 in the plate thickness direction.

The shaft fixing hole 72a is a hole through which the stand shaft 71 is inserted and fixed, and is provided in the vicinity of one longitudinal end of the leg portion 72 . A portion of the stand shaft 71 protruding outward from the pair of support plates 32 is inserted through and fixed to the shaft fixing hole 72a. By fixing the stand shaft 71 in this manner, the pair of leg portions 72 and the stand shaft 71 are integrally rotatable about the stand shaft 71 with respect to the stand support portion 15 .

The fixing member insertion hole 72b is a hole through which the posture fixing member 17 is inserted, and is provided at a position away from the shaft fixing hole 72a in the longitudinal direction of the leg portion 72 to the side opposite to the one end in the longitudinal direction of the leg portion 72. ing.

The grounding portion 73 is a portion that grounds when the stand 16 takes the supporting posture. The grounding portion 73 has a flat plate shape and is arranged so as to extend perpendicularly to the pair of leg portions 72 . The grounding portion 73 is joined and fixed to one of the longitudinal ends of the pair of leg portions 72 that is farther from the stand shaft 71 , and spans the pair of leg portions 72 . . The grounding portion 73 protrudes outward on both sides of the pair of leg portions 72 .

The pair of reinforcing portions 74 are respectively joined to the corresponding one of the pair of leg portions 72 and the grounding portion 73 to reinforce the structure composed of the leg portion 72 and the grounding portion 73 . Each reinforcing portion 74 consists of a flat plate arranged perpendicular to both the leg portion 72 and the ground portion 73 . Each reinforcing portion 74 is joined to the portion of the pair of leg portions 72 that protrudes outward from the ground portion 73 and the corresponding portion of the pair of leg portions 72 .

The plurality of posture fixing members 17 are for fixing the stand 16 in each posture when the corresponding stand 16 takes the supporting posture or the retracting posture. In this embodiment, each guard fence 2 has two posture fixing members 17 . Each posture fixing member 17 has an elongated bolt 17a and a nut 17b screwed onto the bolt 17a.

When the stand 16 assumes the supporting posture, the bolts 17a are inserted through the supporting posture fixing holes 32a provided in the pair of support plates 32 and the fixing member insertion holes 72b provided in the pair of leg portions 72, respectively. A nut 17b is screwed onto the screw portion of the bolt 17a protruding from one leg portion 72 and tightened, thereby fixing the stand 16 in the supporting posture.

Further, when the stand 16 is in the retracted posture, the bolts 17a are inserted into the supporting posture fixing holes 32a provided in the pair of support plates 32 and the fixing member insertion holes 72b provided in the pair of legs 72 respectively. A nut 17b is screwed onto the screw portion of the bolt 17a protruding from one leg portion 72 and tightened, thereby fixing the stand 16 in the retracted posture.

The plurality of holding devices 3 are installed at installation positions above the fixed pipes 52 on the quay 100 so that each protective fence 2 extends along the sea-side edge 100a of the quay 100, and a plurality of insertions described later. When the pipes 54 are arranged at the outflow prevention height position described later, each protective fence 2 is fixed to the corresponding one of the plurality of insertion pipes 54 and the insertion pipes 54 are held at the outflow prevention height position. be. In this embodiment, each guard fence 2 is provided with two holding devices 3 .

Each holding device 3 has a support portion 42 and an insertion member 44, as shown in FIG.

The support portion 42 has an inserting member 44 that is rotatable about an axis perpendicular to both the axis of the receiving pipe 12 and the straight line connecting the centers of the two outer holes 12a, and the two outer holes 12a. The insertion member 44 is supported so as to be slidable along a straight line connecting the centers of the holes 12a. This support portion 42 has a bracket 48 and a shaft portion 50 .

The bracket 48 is mounted on the base plate 20 at a position opposite to the support 21 with respect to the receiving pipe 12, and the shaft portion 50 extends along both the axis of the receiving pipe 12 and the straight line connecting the centers of the two outer holes 12a. The shaft portion 50 is supported so as to extend perpendicularly to the . The shaft portion 50 supported by the bracket 48 in this way is mounted so that the insertion member 44 can rotate about the shaft portion 50 and slide in a direction perpendicular to the shaft portion 50 . 44 is supported.

The insertion member 44 is inserted through the two outer holes 12a of the receiving tube 12 and the two first inner holes 55a of the insertion tube 54 to hold the insertion tube 54 described later at the outflow prevention height position. is. The inserting member 44 has an inserting member main body 62 and a pin portion 64, as shown in FIG.

The insertion member main body 62 is a portion supported by the shaft portion 50 of the support portion 42, is rotatable about the shaft portion 50, and extends in a direction orthogonal to the direction in which the shaft portion 50 extends. 50 can be slid. Specifically, the insertion member main body 62 is an elongated plate, and has an elongated hole 62a extending in the longitudinal direction of the insertion member main body 62 while penetrating in the plate thickness direction. The long hole 62a allows the insertion member main body 62 to slide with respect to the shaft portion 50 along the longitudinal direction of the long hole 62a and allows the insertion member main body 62 to rotate around the shaft portion 50. The shaft portion 50 is inserted so as to allow the

The pin portion 64 has a round bar shape and is a portion that is inserted through the two outer holes 12a of the receiving tube 12 and the two first inner holes 55a of the insertion tube 54, which will be described later. The pin portion 64 extends in the longitudinal direction of the insertion member main body 62 from one longitudinal end of the insertion member main body 62 . The pin portion 64 is inserted through the two outer holes 12a of the receiving tube 12 and the two first inner holes 55a of the insertion tube 54, which will be described later, so that the insertion tube 54 is held at the outflow prevention height position. It has become.

A plurality of fence fixing devices 4 (see FIG. 1) are for fixing a plurality of protective fences 2 at their respective installation positions when the safety management system 1 takes the form of outflow prevention. The plurality of fence fixing devices 4 each have a fixing pipe 52 and an insertion pipe 54, as shown in FIG.

The plurality of fixing pipes 52 of the plurality of fence fixing devices 4 are arranged at intervals along the sea-side edge 100a at the installation position of the protective fence 2 along the sea-side edge 100a of the wharf 100, and vertically It is embedded and fixed in the quay wall 100 in a posture extending in the direction. Each fixed tube 52 has a hollow cylindrical shape, is open at its upper and lower ends, and secures a space into which the insertion tube 54 can be inserted. The space inside each fixed pipe 52 is such that the insertion pipe 54 inserted in the inner space is at a height position below the height position of the car stop described later and above the fixed pipe 52 on the quay 100. It has a depth that allows it to be lowered to a loading/unloading height position that allows loading/unloading of cargo 107 onto vessel 106 at .

Burying holes 101a are respectively provided at the burial positions of the fixed pipes 52 in the quay 100, and the fixed pipes 52 are buried in the quay 100 by burying the fixed pipes 52 in the respective burying holes 101a. . The opening at the lower end of each fixed tube 52 is closed by the bottom surface of the embedding hole 101a in which the fixed tube 52 is embedded, and the opening at the upper end of each fixed tube 52 is open. A recess 101b recessed from the upper surface of the quay wall 100 is formed around the upper end of each embedding hole 101a, and the height position of the upper end of each fixed pipe 52 substantially coincides with the height position of the bottom surface of the recess 101b. there is That is, the upper end of each fixed pipe 52 is arranged below the upper surface of the quay wall 100 .

The plurality of insertion tubes 54 of the plurality of fence fixing devices 4 extend in the vertical direction, respectively, so as to be vertically movable in the space inside the corresponding one of the plurality of fixing tubes 52 along the axial direction. inserted. When the safety management system 1 takes the outflow prevention mode, each insertion tube 54 is positioned at an outflow prevention height position (Fig. 7 ) to interconnect the corresponding receiving pipe 12 and the corresponding fixed pipe 52, thereby fixing the receiving pipe 12 to the quay 100 and attaching the protective fence 2 having the receiving pipe 12 to the quay 100. fixed.

In addition, when the safety management system 1 takes the form of a car stop, the insertion pipe 54 is installed in a state where each protective fence 2 is not installed at the installation position above the fixed pipe 52, and the insertion pipe 54 is used to prevent vehicles from moving toward the sea side from the insertion pipe 54. It is placed at a height position (see FIGS. 3 and 11) that protrudes upward from the upper surface of the quay 100 to the extent that it is possible to block the advance of the quay 104, and prevents the automobile 104 from falling from the quay 100 into the sea.

In addition, when the safety management system 1 takes the configuration for loading and unloading work, the insertion pipe 54 is installed above the fixed pipe 52 on the quay 100 in a state where each protective fence 2 is not installed at the installation position above the fixed pipe 52 . It is arranged at a height position (see FIGS. 6 and 13) that allows loading and unloading of the cargo 107 on the vessel 106 at the position of , so as not to hinder the loading and unloading of the cargo 107 on the vessel 106. ing. Specifically, in the present embodiment, each insertion pipe 54 is arranged at a height position during loading/unloading work, so that containers and the like are transported from the wharf 100 onto the ship 106 by the carrier device 108 as shown in FIG. The work of transporting and loading the cargo 107 and the work of transporting and unloading the cargo 107 such as containers from the ship 106 onto the quay 100 are performed above the plurality of fixed pipes 52 (see FIG. 6) on the quay 100. , so as not to interfere with the loading and unloading operation of the cargo 107 . The height position during the loading/unloading operation is a height position such that the height position of the upper end of the insertion pipe 54 substantially coincides with the height position of the upper surface of the quay wall 100 .

In addition, the insertion pipe 54 is arranged at the height position during the loading and unloading work, so that the insertion pipe 54 is detached downward from the receiving space 19 inside the receiving pipe 12, thereby releasing the fixing of the protective fence 2 to the quay 100 and protecting it. The movement from the installation position of the fence 2 is allowed.

The insertion tube 54 has an insertion tube main body 55 , an upper lid 56 and a hook portion 57 .

The insertion tube main body 55 constitutes most of the insertion tube 54 and is made of a cylindrical tube. The insertion tube main body 55 has two first inner holes 55a (see FIGS. 11 and 12) and two second inner holes 55b (see FIGS. 13 and 14). These first inner hole 55a and second inner hole 55b penetrate the tube wall of the insertion tube main body 55 .

The two first inner holes 55a match the height position of the outer hole 12a of the receiving pipe 12 when the insertion pipe 54 is arranged at the outflow prevention height position, and the insertion pipe 54 is positioned at the wheel stop height. It is provided at a position that coincides with the height position of a fixing pin 87 (described later) of the insertion tube fixing device 5 when it is arranged at the height position. The two first inner holes 55a are provided at predetermined intermediate positions of the insertion tube main body 55 in the vertical direction. Also, the two first inner holes 55a are provided at positions facing each other in the radial direction of the insertion tube main body 55 .

The two second inner holes 55b are provided at positions corresponding to the height positions of fixing pins 87, which will be described later, of the insertion pipe fixing device 5 when the insertion pipe 54 is arranged at the height position during the loading and unloading work. there is The two second inner holes 55b are provided at positions near the upper end of the insertion tube main body 55. As shown in FIG. Also, the two second inner holes 55b are provided at positions facing each other in the radial direction of the insertion tube main body 55 .

The upper lid 56 is attached to the upper end of the insertion tube main body 55 so as to cover the upper end opening of the insertion tube main body 55 .

The hook portion 57 is a portion that is hooked with a hook when pulling up the insertion tube 54 . The hook portion 57 is attached to the upper lid 56 so as to be vertically movable. The hooking portion 57 is retained so as not to be separated from the upper lid 56 in a state of protruding upward from the upper lid 56 . When the hook 57 is hooked and the insertion tube 54 is pulled up, it protrudes upward from the upper lid 56, and when it is not lifted, it descends with respect to the upper lid 56 until the upper surface of the upper lid 56 and the upper end of the hook 57 substantially coincide. It's like

A plurality of insertion tube fixing devices 5 are installed on the wharf 100 corresponding to each of the plurality of insertion tubes 54 . The plurality of insertion pipe fixing devices 5 are devices for fixing each of the plurality of insertion pipes 54 at the car stop height position and the loading/unloading work height position. Each insertion tube fixing device 5 fixes the insertion tube 54 at the height position when the corresponding insertion tube 54 is arranged at the above-mentioned wheel stop height position, and the corresponding insertion tube 54 is at the height during the loading and unloading work. It is configured to be switchable between a fixed state in which the insertion tube 54 is fixed at the height position when it is placed in the position, and a released state in which the fixation is released and movement in the vertical direction is permitted.

In the vicinity of the seaside edge 100a of the wharf 100, a plurality of recesses 101b are provided side by side along the seaside edge 100a, and the plurality of insertion tube fixing devices 5 are provided in the plurality of recesses 101b, respectively. is installed in Each recess 101b is formed so that the upper end of each burying hole 101a is recessed from the upper surface of the quay 100, and has a rectangular shape elongated in the direction along the sea-side edge 100a of the quay 100 when viewed from above. None.

Each insertion tube fixing device 5 has a base 82, a first fixing device 83, a second fixing device 84, a plurality of anchor bolts 88, and a plurality of nuts 89, as shown in FIG.

The base 82 consists of a rectangular flat plate and is installed on the bottom surface of the recess 101b. The base 82 is provided with a central hole 82a passing through the base 82 and four bolt insertion holes 82b.

A central hole 82 a is provided in the center of the base 82 . When viewed from above, the fixed tube 52 is arranged inside the central hole 82a so that the insertion tube 54 can move up and down through the central hole 82a.

The four bolt insertion holes 82b are provided in four directions away from the center hole 82a when the base 82 is viewed from above. Each bolt insertion hole 82 b is a hole through which an anchor bolt 88 is inserted, and is an elongated hole extending in the longitudinal direction of the base 82 . Four anchor bolts 88 are driven into the bottom surface of the recess 101b at positions corresponding to the four bolt insertion holes 82b, and the respective anchor bolts 88 are inserted through the corresponding bolt insertion holes 82b. A nut 89 is screwed onto each anchor bolt 88 and tightened, thereby fixing the base 82 to the bottom surface of the recess 101b.

The first fixing device 83 and the second fixing device 84 are arranged on both sides of the central hole 82 a in the longitudinal direction of the base 82 . The first fixing device 83 and the second fixing device 84 are configured to be symmetrical to each other, and when the insertion pipe 54 is arranged at the car stop height position and the insertion pipe 54 is at the height position during the loading and unloading work. , the insertion tube 54 is fixed at each height position from both sides thereof. The first fixing device 83 and the second fixing device 84 each have a plurality of pin support plates 86, fixing pins 87, and position holding portions 87a.

The plurality of pin support plates 86 support the fixed pins 87 so as to be movable in the axial direction and rotatable around the axis. A plurality of pin support plates 86 of the first fixing device 83 are fixed upright to the base 82 at positions on one side of the central hole 82a in the longitudinal direction of the base 82, and are spaced apart in the longitudinal direction of the base 82. They are lined up open. In addition, the plurality of pin support plates 86 of the second fixing device 84 are fixed upright to the base 82 at positions on the other side of the central hole 82a in the longitudinal direction of the base 82. They are lined up at intervals. Fixing pins 87 are inserted through the plurality of pin support plates 86 of each of the first fixing device 83 and the second fixing device 84 so as to be movable in the axial direction and rotatable around the axis. Substantially through holes are provided respectively. In this embodiment, the first locking device 83 and the second locking device 84 each have three pin support plates 86 .

A pin support plate 86a arranged in the center of the three pin support plates 86 of the first fixing device 83 is provided with a position holding portion passing groove 86b. The position holding portion passing groove 86b allows the position holding portion 87a provided on the fixing pin 87 to pass through when moving in the axial direction of the fixing pin 87 together with the fixing pin 87 as described later. The position holding portion passing groove 86b is a notch that is connected to a through hole provided in the central pin support plate 86a and extends upward from the through hole. The upper end of the position holding portion passage groove 86b is open. The same applies to the three pin support plates 86 of the second fixing device 83. A pin support plate 86a arranged in the center of the three pin support plates 86 has a similar position holding portion passing groove 86b. is provided.

The fixing pins 87 of the first fixing device 83 extend in the longitudinal direction of the base 82 and are inserted through the through holes of the plurality of pin support plates 86 located on the one side with respect to the central hole 82a. The fixed pins 87 are supported by the plurality of pin support plates 86 so as to be movable in the axial direction (longitudinal direction of the base 82). The fixing pins 87 of the second fixing device 84 extend along the longitudinal direction of the base 82 and extend through the through holes of the plurality of pin support plates 86 located on the other side with respect to the central hole 82a. The fixed pins 87 are supported by the plurality of pin support plates 86 so as to be movable in the axial direction (the longitudinal direction of the base 82).

When the insertion tube 54 is positioned at the wheel stop height position, the fixing pin 87 of the first fixing device 83 is inserted into one of the two first inner holes 55a, and the fixing pin 87 of the second fixing device 84 is inserted into two holes. It is inserted into the other of the two first inner holes 55a, thereby fixing the insertion tube 54 at the wheel stop height position. Further, when the insertion tube 54 is arranged at the height position for loading and unloading work, the fixing pin 87 of the first fixing device 83 is inserted into one of the two second inner holes 55b and the second fixing device 84 is fixed. A pin 87 is inserted into the other of the two second inner holes 55b, thereby fixing the insertion tube 54 in the height position during said loading and unloading operation. An insertion position is a position taken when the fixing pin 87 of the first fixing device 83 and the fixing pin 87 of the second fixing device 84 are inserted into the first inner hole 55a or the second inner hole 55b (see FIGS. 11 to 14). called.

Further, when moving the insertion tube 54 in the vertical direction, the fixing pin 87 of the first fixing device 83 and the fixing pin 87 of the second fixing device 84 are extracted from the corresponding first inner hole 55a and second inner hole 55b, respectively. Thereby, the fixation of the insertion tube 54 is released. The position taken when the fixing pin 87 of the first fixing device 83 and the fixing pin 87 of the second fixing device 84 are extracted from the first inner hole 55a and the second inner hole 55b is referred to as the removed position (FIGS. 10 and 15). reference).

The position holding portion 87a holds the axial position of the fixing pin 87 at the insertion position and the withdrawal position. Specifically, the position holding portion 87a is opened when the fixing pin 87 is inserted into the first inner hole 55a to fix the insertion tube 54 at the wheel stopper height position, and when the fixing pin 87 is at the insertion position. is inserted into the second inner hole 55b to fix the insertion tube 54 at the height position during the loading/unloading operation, and holds the fixing pin 87 at the insertion position. Further, the position holding portion 87a is formed when the fixing pin 87 is pulled out from the first inner hole 55a and the second inner hole 55b to allow the vertical movement of the insertion tube 54 and takes the above-described withdrawn position. Then, the fixing pin 87 is held at its removed position.

The position holding portion 87a is provided on the fixing pin 87 so as to protrude outward from a predetermined position on the outer peripheral surface of the fixing pin 87. As shown in FIG. 11 to 14, the position holding portion 87a is formed by the center pin support plate 86a of the three pin support plates 86 and the center pin support plate 86a, as shown in FIGS. is arranged between the pin support plate 86 closer to the insertion tube 54, and the pin support plates 86a, 86 restrict the movement of the position holding portion 87a in the axial direction of the fixing pin 87. As shown in FIG. As a result, the position holding portion 87a holds the axial position of the fixing pin 87 at the insertion position. 10, the position holding portion 87a includes the center pin support plate 86a and the pin farther from the insertion tube 54 than the center pin support plate 86a, as shown in FIG. The pin support plates 86a, 86 regulate the movement of the position holding portion 87a in the axial direction of the fixing pin 87. As shown in FIG. As a result, the position holding portion 87a holds the axial position of the fixing pin 87 at the removed position.

Further, when the fixing pin 87 is moved in the axial direction of the fixing pin 87 between the insertion position and the removal position, the position holding portion 87a faces upward and is arranged at a position corresponding to the position holding portion passage groove 86b. As shown, the fixing pin 87 is rotated about its axis so that the position holding portion 87a can pass through the position holding portion passage groove 86b, thereby allowing axial movement of the fixing pin 87. ing.

Next, a safety management method for the harbor quay 100 using the safety management system 1 according to this embodiment will be described.

In the safety management method according to this embodiment, first, a plurality of fixed pipes 52 and a plurality of insertion pipe fixing devices 5 are installed on the wharf 100 . In this installation step, first, a plurality of embedding holes 101a (see FIG. 7) for embedding the plurality of fixing tubes 52, and a plurality of recesses 101b (see FIG. 7) for installing the plurality of insertion tube fixing devices 5, respectively. and FIG. 10) are formed in the wharf 100, and four anchor bolts 88 for fixing the insertion tube fixing device 5 in each recess 101b are driven into the bottom surface of each recess 101b.

The plurality of burial holes 101a are arranged at predetermined intervals corresponding to the installation intervals of the plurality of fixed pipes 52 along the plurality of locations where the plurality of fixed pipes 52 are to be buried, that is, along the edge 100a on the sea side of the quay wall 100. formed at the point of Each embedding hole 101 a is formed to have an inner diameter corresponding to the outer diameter of the fixed tube 52 and has a circular cross-section extending vertically. In addition, the plurality of recesses 101b are formed so that the upper end portions of the respective embedding holes 101a are recessed from the upper surface of the quay wall 100 and form a rectangular shape when viewed from above. The four anchor bolts 88 are provided on the base 82 of the insertion tube fixing device 5 at positions evenly spaced apart from the embedding hole 101a when viewed from above on the bottom surface of each recess 101b. It is driven into a position corresponding to the bolt insertion hole 82b.

Next, the plurality of fixed pipes 52 are aligned along the sea-side edge 100a of the wharf 100 at intervals and each of the plurality of fixed pipes 52 extends vertically. is buried in the quay wall 100. Specifically, the plurality of fixed pipes 52 are buried in the quay 100 by inserting and fixing the fixed pipes 52 into the plurality of burying holes 101a formed in the quay 100 as described above.

Next, a plurality of insertion tube fixing devices 5 are installed on the wharf 100 at positions corresponding to the plurality of fixing tubes 52, respectively. Specifically, the insertion tube fixing device 5 is installed in each of the plurality of recesses 101b formed in the wharf 100 as described above. At this time, each insertion tube fixing device is arranged so that the four anchor bolts 88 provided on the bottom surface of each recess 101b are inserted into the four bolt insertion holes 82b provided in the base 82 of each insertion tube fixing device 5, respectively. 5 is set in each recess 101b, and each insertion tube fixing device 5 is placed in each recess 101b so that the center of a central hole 82a provided in the base 82 substantially coincides with the axis of the fixing tube 52 when viewed from above. position. Then, each insertion tube fixing device 5 is fixed by screwing a nut 89 onto each anchor bolt 88 and tightening them.

Next, each of the plurality of insertion tubes 54 is moved up and down along the axial direction of the corresponding one of the plurality of fixed tubes 52 so that each of the plurality of insertion tubes 54 can move up and down. Insert into inner space. Specifically, each insertion tube 54 is inserted into the space inside the fixed tube 52 from above the fixed tube 52 along its axial direction. Each insertion tube 54 descends to the lowest height position, which is the height position for unloading work.

In normal times when a storm surge does not occur and the cargo 107 is not loaded or unloaded onto the vessel 106, the plurality of insertion pipes 54 are arranged on the wharf 100 so that the automobiles can move closer to the sea than the plurality of insertion pipes 54. The plurality of insertion pipes 54 are arranged and fixed at the position of the car stop that protrudes upward from the upper surface of the quay 100 to the extent that it is possible to block the advance, and the plurality of insertion pipes 54 allow the vehicle 104 to move from the quay 100 to the sea. to prevent it from falling.

At this time, the insertion pipe 54 is lifted from the loading/unloading work height position by a crane. Specifically, as shown in FIG. The insertion tube 54 is pulled up by hooking the hook 57 of the crane and raising the hook 120 of the crane. When pulling up the insertion tube 54, the fixing pins 87 of the first fixing device 83 and the second fixing device 84 are arranged at the withdrawal positions, and the position holding portions 87a provided on the fixing pins 87 are turned sideways. The position of the fixing pin 87 in the axial direction is adjusted between the center pin support plate 86a and the pin support plate 86 farther from the insertion tube 54 by rotating each fixing pin 87 about its axis so as to fall down. The movement of the holding portion 87a is restricted so that the fixing pin 87 is held at the removed position.

When the insertion pipe 54 is pulled up to the car stop height position, the lifting of the hook 120 of the crane is stopped at that point, and the insertion pipe 54 is held at the car stop height position. At this wheel stop height position, the height position of the first inner hole 55 a provided in the insertion tube 54 is aligned with the height position of the fixing pin 87 of the insertion tube fixing device 5 . With the insertion tube 54 held at this wheel stopper height position, the fixing pins 87 of the first fixing device 83 and the second fixing device 84 of the insertion tube fixing device 5 are inserted into the corresponding first inner holes 55 a of the insertion tube 54 . , respectively, and placed at the insertion position, thereby fixing the insertion tube 54 at the height position of the wheel stop so as not to drop from the height position of the wheel stop.

When inserting the fixing pin 87 into the first inner hole 55a, the fixing pin 87 is rotated about its axis so that the position holding portion 87a faces upward and is arranged at a position corresponding to the position holding portion passing groove 86b. , the fixing pin 87 is moved toward the insertion tube 54 along its axial direction. As a result, the position holding portion 87a passes through the position holding portion passage groove 86b, and the fixing pin 87 is inserted into the first inner hole 55a and arranged at the insertion position. After the fixing pin 87 is arranged at the insertion position, the fixing pin 87 is rotated about its axis so that the position holding portion 87a falls sideways, and the center pin support plate 86a and the one closer to the insertion tube 54 are connected. The movement of the position holding portion 87a in the axial direction of the fixing pin 87 is restricted between the pin support plate 86a, thereby holding the fixing pin 87 at the insertion position.

By fixing each insertion pipe 54 at the car stop height position as described above, the safety management system 1 becomes the car stop form shown in FIGS. A plurality of insertion pipes 54 protruding above the quay 100 prevent the automobile 104 from falling into the sea.

In addition, when a storm surge occurs, the plurality of protective fences 2 are installed on the quay 100 so that the plurality of protective fences 2 are aligned along the sea-side edge 100a of the quay 100, and the insertion pipe 54 of each fence fixing device 4 is installed. The plurality of protective fences 2 and the plurality of insertion pipes 54 that fix them prevent the placed objects 102 on the quay 100 from being swept away by waves and flowing out to the sea.

At this time, a plurality of protective fences 2 stored at a predetermined place are moved on the quay 100 and arranged at respective installation positions. At the time of this movement, each protective fence 2 is made to take the movable form shown in FIG. The installation position of each of the plurality of protective fences 2 is such that the plurality of protective fences 2 are arranged along the sea-side edge 100 a of the quay 100 and the receiving pipes 12 of the plurality of protective fences 2 are connected to the plurality of fixed pipes 52 . (see FIG. 17).

After arranging each of the plurality of protective fences 2 at the installation position, the two stands 16 of each of the protective fences 2 are rotated downward from the retracted posture to the supporting posture (see FIG. 18). Specifically, the nut 17b of the posture fixing member 17 that fixes each stand 16 in the retracted posture is loosened and removed from the bolt 17a, and then the bolt 17a is pulled out from the retracted posture fixing hole 32b and the fixing member insertion hole 72b. As a result, the fixation of each stand 16 in the retracted posture is released. Then, each stand 16 is rotated downward to stand upright with respect to the upper surface of the quay wall 100 . Then, the bolts 17a of the posture fixing members 17 are inserted into the fixing member insertion holes 72b and the supporting posture fixing holes 32a of each stand 16, and the nuts 17b are screwed onto the bolts 17a and tightened, thereby setting each stand 16 in the supporting posture. to fix. The plurality of protective fences 2 are held by the respective two stands 16 fixed in the supporting posture as described above so as not to move due to the rolling of the casters 14 at each installation position.

Also, the pin portions 64 of the insertion members 44 of the holding device 3 of each protective fence 2 are pulled out from the two outer holes 12a. Specifically, the insertion member 44 is slid horizontally away from the receiving pipe 12 so that the pin portions 64 are separated from the two outer holes 12a. Further, the insertion member 44 is rotated around the shaft portion 50 to stand upright with respect to the upper surface of the quay wall 100 (see FIG. 18).

Then, each of the plurality of insertion tubes 54 is pulled up from the space inside the corresponding one of the plurality of fixed tubes 52, and each of the plurality of insertion tubes 54 is connected to the receiving space 19 inside the receiving tube 12 directly above it. The height position of the first inner hole 55a provided in each insertion tube 54 and the space inside the corresponding one of the fixed tubes 52 is the height position of the outer hole 12a provided in the corresponding receiving tube 12. Arrange at the same outflow prevention height position. At this time, as shown in FIG. 18, a hook 124 suspended from a crane hook 120 via a rope 122 is passed from above the protective fence 2 through the space between the beams 22 located on both sides of the support 21. It is lowered through the receiving space 19 inside the receiving tube 12 and hooked on the hook 57 of the insertion tube 54 . By raising the hook 120 of the crane with the hook 124 hooked on the hook 57, the insertion tube 54 is pulled up from the space inside the fixed tube 52 as shown in FIG. At this time, the fixing pins 87 of the first fixing device 83 and the second fixing device 84 are pulled out from the corresponding second fixing holes 55b of the insertion tube 54 in advance, and arranged at the above-mentioned removal position, so that during the loading and unloading operation The fixation of the insertion tube 54 at the height position is released.

When extracting the fixing pin 87 from the second fixing hole 55b, the fixing pin 87 is turned around its axis so that the position holding portion 87a faces upward and is arranged at a position corresponding to the position holding portion passing groove 86b, The fixing pin 87 is moved away from the insertion tube 54 along its axial direction. As a result, the position holding portion 87a passes through the position holding portion passage groove 86b, and the fixing pin 87 is extracted from the second fixing hole 55b and arranged at the removal position. After the fixing pin 87 is arranged at the withdrawal position, the fixing pin 87 is rotated about its axis so that the position holding portion 87a falls sideways, and the center pin support plate 86a and the portion far from the insertion tube 54 are moved. The movement of the position holding portion 87a in the axial direction of the fixing pin 87 is restricted between the pin support plate 86, thereby holding the fixing pin 87 at the removed position.

When the insertion pipe 54 is pulled up to the outflow prevention height position, the lifting of the hook 120 of the crane is stopped at that point, and the insertion pipe 54 is held at the outflow prevention height position (see FIG. 20). Then, as shown in FIG. 21, the pin portions 64 of the insertion member 44 are inserted through the two outer holes 12a of the receiving tube 12 and the two first inner holes 55a of the insertion tube .

Specifically, as shown in FIG. 18, the insertion member 44 that has been erected against the upper surface of the quay wall 100 is rotated around the shaft portion 50, and as shown in FIG. horizontal so that it extends along the The operation of turning the inserting member 44 to make it horizontal is performed in parallel with pulling up the insertion tube 54 to the outflow preventing height position as shown in FIGS. 19 and 20 . This operation may be performed after or before pulling up the insertion tube 54 to the outflow prevention height position. Then, the horizontal insertion member 44 is slid with respect to the shaft portion 50 to insert the pin portions 64 through the two outer holes 12a and the two first inner holes 55a. As a result, the insertion tube 54 is held at the outflow prevention height position so as not to descend from the outflow prevention height position. As a result, each protective fence 2 is fixed to the quay 100 via the insertion pipe 54 at its installation position, the safety management system 1 is in the outflow prevention mode shown in FIGS. A plurality of protective fences 2 fixed on the quay 100 along the quay prevents the objects 102 placed on the quay 100 from flowing out to the sea.

When loading and unloading the cargo 107 on the ship 106 attached to the wharf 100, the plurality of insertion tubes 54 normally fixed at the car stop height position are released, and the plurality of insertion tubes 54 are lowered. Each insertion pipe 54 is arranged at a loading/unloading work height position that allows loading/unloading of the cargo 107 onto the ship 106 at a position above the plurality of fixed pipes 52 on the wharf 100 .

At this time, the respective fixing pins 87 of the first fixing device 83 and the second fixing device 84, which fix the respective insertion tubes 54 at the wheel stop height position, are pulled out from the corresponding second inner holes 55a, thereby increasing the wheel stop height. Release the fixation of each insertion tube 54 at the extended position. By releasing the fixation, each insertion tube 54 descends by its own weight and retreats to the height position for the loading/unloading work. Then, the fixing pin 87 of the first fixing device 83 and the fixing pin 87 of the second fixing device 84 are respectively inserted into the two second inner holes 55b of each insertion tube 54 retracted to the height position during the loading/unloading work. , thereby fixing each insertion tube 54 at a height position during loading and unloading operations. 5 and 6, the cargo 107 can be loaded and unloaded onto the ship 106 above the plurality of fixed pipes 52 on the wharf 100. Avoid obstruction by the insertion tube 54 .

In this embodiment, by simply switching the height positions of the plurality of insertion pipes 54 among three height positions of the car stop height position, the outflow prevention height position, and the loading/unloading work height position, the wharf 100 It is possible to prevent the automobile 104 from falling into the sea from above, to prevent the objects 102 placed on the quay 100 from flowing out to the sea, and to avoid obstruction of loading and unloading of the cargo 107 onto the vessel 106 on the quay 100. can do.

Specifically, in normal times, the plurality of insertion pipes 54 are fixed at the car stop height position that protrudes above the quay 100 to the extent that it is possible to prevent the car 104 from advancing to the sea side from the plurality of insertion pipes 54. Therefore, the plurality of insertion tubes 54 can prevent the automobile 104 from falling into the sea from the wharf 100 (see FIGS. 3 and 4).

In addition, when a storm surge occurs, a plurality of protective fences 2 are installed at installation positions above the plurality of fixed pipes 52 on the quay 100 so as to line up along the sea-side edge 100a of the quay 100, and the plurality of protection A plurality of protective fences 2 can be fixed to the quay wall 100 via a plurality of insertion pipes 54 by fixing the fences 2 to corresponding one of the plurality of insertion pipes 54 arranged at the outflow prevention height position. A plurality of protective fences 2 fixed to the quay 100 can prevent the objects 102 placed on the quay 100 from being swept away by waves and washed out to sea (see FIG. 2).

Also, when loading and unloading the cargo 107 on the ship 106, by arranging the plurality of insertion pipes 54 at the height position during the loading and unloading work, the cargo can be delivered to the ship 106 at a position above the plurality of fixed pipes 52 on the quay 100. A place for the loading and unloading work of 107 can be secured, and the loading and unloading work can be prevented from being hindered. Further, when loading and unloading the cargo 107 on the ship 106, only by releasing the fixation of each insertion pipe 54 fixed at the car stop height position, each insertion pipe 54 is lowered by its own weight to the height position during loading and unloading work. , the safety management system 1 can be immediately shifted to a loading/unloading operation mode that does not interfere with the loading/unloading operation of the cargo 107 onto/from the ship 106.例文帳に追加

In addition, in this embodiment, each protective fence 2 can be easily moved on the quay 100 to the installation position above the fixed pipe 52 by rolling the plurality of casters 14, and each protective fence 2 can be moved to the installation position. After arranging it, each protective fence 2 can be prevented from moving by the rolling of the caster 14 by making the stand 16 support each protective fence 2 on the quay 100.例文帳に追加

The safety management method and safety management system for harbor quays according to the present invention are not necessarily limited to those described above. For example, the following techniques can be employed in the safety management method and safety management system according to the present invention.

In the above-described embodiment, the receiving pipe for receiving the insertion tube and the strut connected to the beam are configured separately in the protective fence, but the receiving pipe may also serve as the strut. That is, the beam may be connected to the receiving tube and the struts omitted.

Also, the configuration of the protection fence is not necessarily limited to that shown in the above embodiment. For example, the number of beams in the connection part of the protective fence, the vertical interval between the beams, the connection structure between the beams located on both sides of the support and the receiving pipe, the number and arrangement of casters, and other configurations, the above-mentioned implementation Various configurations other than the configuration shown in the form can be applied.

Also, the shape of the beams of the connecting portion of the protective fence is not particularly limited. That is, the beam is not necessarily limited to the tubular shape used in the above embodiment, and may be, for example, a corrugated shape (corrugated sheet shape) used for a guard fence.

Also, the operation of moving the insertion tube up and down does not necessarily have to be performed by a crane. For example, an operator may manually move the insertion tube up and down.

In the present invention, that the protective fence is movable on the quay means that the protective fence can be moved by any method regardless of the mode of movement or means of movement. Therefore, the protective fence is not necessarily limited to one that can move on the quay by rolling its casters. For example, the protective fence in the present invention does not have casters and may be installed by being placed on the installation position on the quay, or it may be dragged or pushed on the upper surface of the quay. Alternatively, it may be a protective fence that can be lifted from the upper surface of the quay and moved.

In the above embodiment, after the fixed pipe is buried in the quay, the insertion pipe is inserted into the space inside the buried fixed pipe. It may be buried in the quay along with

1 Safety Management System 2 Protective Fence 3 Holding Device 5 Insertion Tube Fixing Device 14 Caster 16 Stand 52 Fixing Tube 54 Insertion Tube 100 Quay 100a Edge 102 on the Sea Side Object 104 Car 106 Ship 107 Cargo

Claims (4)

A safety management method for a harbor quay,
A plurality of fixed pipes are arranged along the sea-side edge of the quay wall and are buried in the quay wall so as to extend in the vertical direction, and a plurality of insertion pipes are vertically inserted into spaces inside corresponding ones of the plurality of fixed pipes. inserting so as to be movable into the
When loading and unloading cargo on a ship, the plurality of insertion pipes are arranged at a height position during loading and unloading, which is a predetermined height position that allows the work of loading and unloading cargo on the ship at a position above the fixed pipe. and
In normal times, the plurality of insertion pipes are placed at a height position higher than the height position during loading and unloading work, and each of the plurality of insertion pipes is above the quay from the space inside the corresponding one of the plurality of fixed pipes. preventing the automobile from falling from the quay into the sea by means of the plurality of insertion pipes;
When a storm surge occurs, a protective fence is installed at an installation position above the plurality of fixed pipes so as to extend along the sea-side edge of the quay, and the plurality of insertion pipes are positioned above the car stop height position. , the protective fence is fixed to the corresponding one of the plurality of insertion pipes, and the protective fence prevents the objects placed on the quay from flowing out to the sea; safety management methods, including; The protective fence has casters that can roll on the quay and a stand for supporting the protective fence on the quay so as to prevent movement of the protective fence due to rolling of the casters. using
The safety management method according to claim 1, wherein when the storm surge occurs, the protective fence is moved on the quay to the installation position by rolling the casters, and the stand supports the protective fence at the installation position. . A safety management system installed on the quay of a harbor,
a plurality of fixed pipes embedded in the wharf so as to be arranged at intervals along the sea-side edge of the wharf and extend in the vertical direction;
a plurality of insertion tubes each inserted vertically movably into a space inside a corresponding one of the plurality of fixed tubes;
a protective fence configured to be movable on the quay;
The plurality of insertion pipes are arranged at car stop height positions that protrude from the space inside the plurality of fixed pipes onto the quay wall to such an extent that the plurality of insertion pipes can block the movement of automobiles toward the sea side from the plurality of insertion pipes. an insertion tube fixing device configured to be switchable between a fixed state in which the plurality of insertion tubes are fixed at the wheel stop height position and a release state in which the fixing is released,
The protective fence is installed at an installation position above the fixed pipe so as to extend along the sea-side edge of the quay, and the plurality of insertion pipes are positioned at a height position to prevent outflow above the height position of the car stop. a holding device for fixing the protective fence to a corresponding one of the plurality of insertion tubes and holding the insertion tube at the outflow prevention height position when placed in the
In the space inside each of the plurality of fixed pipes, the insertion pipe inserted into the inner space is at a height position below the height position of the car stop and above the fixed pipe on the wharf. A safety management system having a depth to allow it to be lowered to a loading/unloading height position to allow cargo to be loaded/unloaded onto a vessel at a position. The protective fence includes casters that can roll on the quay, a support posture that supports the protective fence on the quay so as to prevent movement of the protective fence due to rolling of the casters, and rolling of the casters. 4. The safety management system according to claim 3, further comprising a stand configured to be able to take a retracted posture away from the quay so as to allow movement of the protective fence due to the movement of the guard fence.

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