JP6401964B2 - System and method for installing a built-in member directly under a ground obstacle - Google Patents

Description

  The present invention relates to a system and method for building a built-in member directly under an underground obstacle.

  For example, when constructing an underground continuous wall directly under an underground obstacle composed of underground boxes for various purposes, a guide groove is formed on the side of the underground obstacle, particularly when feeding a reinforcing bar. Then, after carrying out widening excavation from the guide groove directly below the underground obstacle, a reinforcing bar is suspended from the ground into the guide groove, and the reinforcing bar is sent into the built-in groove directly below the underground obstacle.

  A continuous underground wall is constructed immediately below the underground obstacle by sequentially feeding a predetermined number of reinforcing bar rods into the erection groove and filling with concrete.

  As a method of widening excavation directly under the underground obstacle, a guide is installed in the guide groove on the side of the underground obstacle, and a wing-type excavator, for example, can be moved up and down along the guide. The so-called see-through continuous wall method, in which the excavation is performed with the expanded wing, is generally used. Therefore, it can be said that the widening excavation method just below the underground obstacle has been established.

  On the other hand, the current situation is that there are many problems with the method of feeding the reinforcing bar rod directly under the underground obstacle. For example, when underground obstacles are discontinuously arranged, there are often spaces where you can change the wire that hangs the reinforcing rods. You can send firewood.

  On the other hand, when the underground obstacle is a continuous drive, it is impossible to change the wire from the ground, so widening excavation directly under the underground obstacle through the guide groove on the side of the underground obstacle A rail that is installed in the overhanging frame, with a hanging frame that guides the rebar to be hung from the built-in groove created in step 1 The method of feeding the reinforcing bar rod by wiring along is performed.

  In this rebar rod feeding method, the overhang frame is inserted into the hanging frame, and the rebar rod runs on this overhang frame, so the width of the rebar rod to be fed must be narrowed. There is a problem. Furthermore, since the reinforcing bar is placed on the overhanging frame, there is a problem that the frame cannot be removed unless the suspended reinforcing bar is self-supporting.

  And as the biggest problem, there is a method to return the reinforcing bar scissors if the reinforcing bar scissors get caught in the middle of feeding and it becomes impossible to feed any more, or when the reinforcing bar scissors can not be fed due to the resistance of the traveling carriage. Since it does not exist, for example, there is a problem that the reinforcing bar can not be sent to a predetermined position of the erected groove after the reinforcing bar is returned and pulled up and re-excavated.

  In addition, since the driving force for feeding the reinforcing bar rod acts only on the upper part where the reinforcing rod rod is directly suspended, for example, when the reinforcing rod rod is long, only the upper portion of the reinforcing rod rod is fed into the built-in groove in advance, There is also a problem that the lower part of the steel cannot follow the feeding of the upper part, and the reinforcing bar is inclined in the built-in groove.

  If the reinforcing bar rod is fixed in a tilted position in the built-in groove, not only the reinforcing bar rod in the tilted posture is not disposed at a predetermined position, but also the next reinforcing bar rod to be fed cannot be disposed at the predetermined position. Become.

  Patent Document 1 also discloses a reinforcing bar erection apparatus and method for moving and building a reinforcing bar rod along a frame that extends into the erection groove. According to this apparatus and method, when the reinforcing bar is built in the built-in groove, the excavation width of the guide groove is narrow and the widened width of the built-up groove is wide, or the underground obstacle is buried deeply. However, the effect that it becomes possible to build a reinforcing bar easily can be produced. However, since the reinforcing bar rod is moved along the frame protruding into the built-in groove, the various problems described above are inherent.

Japanese Patent No. 3232450

  The present invention has been made in view of the problems described above, and when a built-in member such as a reinforcing bar is sent directly under an underground obstacle, even if the built-in member is caught in the middle of feeding, it is not caught. It is an object of the present invention to provide a system and method for building a built-in member directly under a ground obstacle, which can be released and built in a desired position.

  In order to achieve the above-mentioned object, a system for building a built-in member directly under a ground obstacle according to the present invention includes a cut-out portion formed on the side of the underground obstacle, and at least directly under the ground obstacle from the cut-out portion. A guide groove that extends to the guide groove, a built-in groove that communicates with the guide groove, and that extends from the cut-out portion to the guide groove, and includes a travel rail and at least two pulleys. A feed winch and a return winch installed on the ground, a cart mounted above the built-in member, and a feed wire and a return wire mounted on the cart, which are fed via a pulley It is composed of a feeding wire and a returning wire that are freely wound through the winch and the return winch, respectively. When the construction member is sent to the construction groove with the carriage engaged with the lateral guide member, the delivery winch is operated to move the carriage along the traveling rail of the lateral guide member. When the built-in member is returned to the second direction opposite to the first direction, the return winch is moved to the return winch. The built-in member is returned.

  In the system of the present invention, a lateral guide member having a traveling rail and at least two pulleys is disposed in a guide groove extending from a cut-out portion formed on the side of the underground obstacle to just below the underground obstacle. The carriage mounted on the upper part of the built-in member is provided with a feed wire and a return wire, and these wires communicate with the feed winch and the return winch on the ground via a pulley. Therefore, if the built-in member is caught while the built-in member is being sent to the built-in groove and cannot move, the return winch is actuated to release the catch, and the feed winch is again released. And the built-in member can be fed into a predetermined position of the built-in groove.

  In this way, the present invention provides a pulley in the lateral guide member, a return winch in addition to the feed winch on the ground, a carriage above the built-in member, and a pulley. It is possible to smoothly install the built-in member directly under the underground obstacle by simply improving the structure such as attaching the feed wire and the return wire leading to the feed winch and the return winch via the carriage. It is possible.

  Here, the “underground obstacles” include all infrastructure structures such as subways and underground passages, and underground structures of buildings, as well as structures that are entirely or partially embedded in the basement.

  In addition to “reinforcing members”, there are various targets such as reinforcing bars for connecting walls, supporting members such as steel pipes and steel molds, and boxes buried underground. Here, the “open-cut portion” means a space created by digging the ground from the ground or a groove.

  A guide groove that extends from the excavated portion to directly below the underground obstacle and a built-in groove that is formed below the guide groove communicate with each other. The difference between “guide groove” and “built-in groove” is that the guide groove is constructed in advance, and the lateral guide member is constructed in that guide groove (including the installation of precast members). On the other hand, the built-in groove is a groove into which the built-in member is built.

  The lateral guide member, which is guided by the built-in groove by moving the carriage above the built-in member, is a concrete member or a precast member that is constructed on site, and is a built-in member (reinforcing bar) of a predetermined length. It has rigidity that can hold the weight of the built-in member (reinforcing bar) during the movement of 籠).

  For example, the built-in member is fixed to the lower surface of the underground obstacle with an anchor or the like, or is continuously constructed from the cut portion to the guide groove. There exists a form etc. which support the area directly under an underground obstacle in the excavation part area | region and back area of a guide member. That is, the latter form is not a form in which only the frame projects as in Patent Document 1, but a stable structure in which the lateral guide members are supported at both ends thereof.

  Before suspending the built-in member on the cut-out part, the pulley mounted on the lateral guide member is connected to the feeding wire and the returning wire respectively connected to the feeding winch and the return winch installed on the ground. It is set in a state where it can be freely attached to the carriage.

  The built-in member is suspended along the cut portion, the built-in member is suspended downward through the lateral guide member, and the carriage above the built-in member is engaged with the traveling rail of the lateral guide member.

  In the lateral guide member, for example, the first pulley is attached to the lower side of the underground obstacle, and the second pulley is attached to the excavation part side. Before the suspension of the carriage and the built-in member, the feeding wire is attached to the feeding winch and the carriage on the ground via the first and second pulleys, and the returning wire is the return winch and the carriage. It is attached to.

  As described above, the built-in groove is a so-called see-through wall that is equipped with a wing-type excavator or the like so that it can move up and down along the guide, and performs excavation directly below the underground obstacle with the wing. Can be constructed by construction methods.

  When sending the built-in member to the built-in groove, the feed winch is actuated, and the feed wire moves the first pulley along the running rail of the lateral guide member via the second pulley and the first pulley. And is positioned at a predetermined position of the built-in groove. When the feeding winch is operated, the feeding wire is pulled and wound around the feeding winch. At this time, the return winch is loosened.

  In the process of moving the carriage in this first direction, when the carriage or the built-in member gets caught and stops moving, the operation of the feeding winch is stopped and the feeding winch is loosened. Activate and wrap the return wire. The wound return wire pulls the built-in member through the second pulley in the second direction opposite to the first direction (the direction toward the cut portion), and pulls the carriage and the built-in member into the second direction. The hook can be released by moving in the direction.

  When the catch of the carriage or the built-in member is released, the operation of the return winch is stopped, and the feed winch is operated again to feed the built-in member into the built-in groove.

  In addition, the excavation part and the built-in groove | channel connected to this are created in the width | variety which accommodates a reinforcing rod. For example, one (1 unit) reinforcing bar rod in which a plurality of reinforcing rod rods are sequentially connected in a vertical posture is suspended from the cut portion. And the guide groove is formed in the width | variety corresponded to the one rebar rod, and the horizontal direction guide member is constructed here. The plurality of reinforcing bar rods are connected to each other in the upper and lower directions, and the plurality of reinforcing bar rods are simultaneously moved in the first direction by moving the carriage above the uppermost reinforcing bar rod along the guide groove in the first direction. Can be moved. By repeating this three times, for example, one set of three reinforcing bars can be built directly under the underground obstacle.

  Here, as an embodiment of the lateral direction guide member, the lateral direction guide member includes an excavation part region in the guide groove, a direct region immediately below the underground obstacle, and a deep side region that is deeper than the direct region. The region immediately below is composed of a substantially C-shaped wall body whose cross section is directed downward, and two rails are disposed inside the substantially C-shaped, The upper wall is removed from the substantially C-shaped wall body with the cross section facing downward, and a through-hole is provided, and the built-in member suspended through the through-hole can be freely hung down. Can be mentioned.

  As described above, the excavation part region constituting the lateral guide member is integrated with the excavation part, and the back side region is embedded in the ground on the back side from directly below the underground obstacle, and therefore the cut part The region directly below (the region in which the built-in member is suspended) that constitutes the lateral guide member can be supported by the region and the back region.

  Moreover, since two rails are arranged inside the substantially C-shaped wall body whose cross section is directed downward, the rails can be protected from the surrounding ground, and dirt and mud are collected on the rails. Thus, it is possible to suppress the movement of the carriage from being hindered and the running resistance from increasing.

  Moreover, since the cut-out portion region needs to allow the built-in member to pass downward, the cut-out portion region includes a through portion in which the upper wall is removed from a substantially C-shaped wall body facing downward. The penetrating portion has a width that allows the built-in member to pass therethrough.

In addition, it is preferable that the rail surface of the traveling rail on which the carriage travels has an oblique posture.
Since the rail surface has an oblique posture, it is possible to eliminate the accumulation of sediment and muddy water on the rail, and the accumulation of sediment and suspended matter in the sediment.

  In addition, a preferred embodiment of the system for building the built-in member directly under the underground obstacle according to the present invention further includes a pressing mechanism that presses the built-in member to correct the built-up posture, and the pressing mechanism includes the cutting portion. A vertical guide member built along the vertical guide member, a slider that can be raised and lowered along the vertical guide member, a pressing member that is rotatably mounted on the slider, and a rotating wire that is mounted on the pressing member, A rotation winch installed on the ground and through which a rotation wire passes.

Although the upper part of the built-in member moves in the first direction on the carriage, the lower part of the built-in member may not be able to follow the movement of the upper part. In such a case, the erection posture of the erection member can be set, for example, to a desired value by pressing the central part or the lower part of the erection member in the first direction with the pressing member constituting the pressing mechanism for correcting the erection posture. The vertical posture can be corrected.
Here, it is preferable that the pressing member is extendable in the longitudinal direction.

  For example, after the first built-in member is fed into the built-in groove and the posture is corrected, the second-time built-in member is corrected into the built-in groove, and the posture of the second built-in member is corrected by the pressing member. When trying to do so, the distance between the longitudinal guide member and the second erection member is shortened by the width of the first erection member. Accordingly, by shortening the length of the pressing member by the amount corresponding to the shortened distance, it becomes possible to execute the posture correction of the built-in member at each stage using the common pressing member.

  The present invention also extends to a method for installing a built-in member directly under a ground obstacle, which is a first level below the ground obstacle at the side of the ground obstacle. The first step of digging up to create an excavation part, and then creating a guide groove from the excavation part to at least directly below the underground obstacle, including a traveling rail and at least two pulleys extending from the excavation part to the guide groove The second step of installing the feed winch and the return winch on the ground, and digging the excavation part from the first level to the second level which is the final excavation level. The third step of expanding the blade-type excavator to create a built-in groove communicating with the guide groove below the guide groove, mounting the carriage above the built-in member, and feeding the carriage mounted on the carriage Wire The return wire and the return wire are connected to the feed winch and the return winch, which are installed on the ground via a pulley, respectively, and the built-in member having the carriage above is suspended from the excavated portion, and the carriage is used as a lateral guide member. In the engaged state, the feeding winch is operated to move the carriage laterally in the first direction along the traveling rail of the lateral guide member, and the fourth step of sending the building member to the building groove, Thus, in the fourth step, when the built-in member is returned in the second direction opposite to the first direction, the built-in member is returned by the return winch.

  In the second step, the lateral guide member is constructed, and the feed winch and the return winch are installed on the ground. The installation of each winch is a fourth method for hanging the built-in member and the carriage. It can also be done in steps. Accordingly, in this specification, the winch can be installed in the second step or the fourth step.

  According to the method of the present invention, in the fourth step of sending the erection member to the erection groove, when the erection member is caught or the like, the return winch is operated to perform the second direction opposite to the first direction. By releasing the built-in member by returning the built-in member in the direction of, by moving the winch again to move the carriage in the first direction along the traveling rail of the lateral guide member, The erection member can be erected at a desired position.

  Furthermore, in a preferred embodiment of the method for building the built-in member directly under the underground obstacle according to the present invention, the fifth step of correcting the built-up posture by pressing the built-in member following the fourth step. In the fifth step, a longitudinal guide member is built along the cut portion, and a pressing member is rotatably mounted on a slider that can be moved up and down along the longitudinal guide member, and the rotating wire is attached to the pressing member. Is installed, and the rotating wire leads to the rotating winch installed on the ground, the slider is lowered along the longitudinal guide member, the rotating winch is operated to lift the pressing member, and the pressing member is built The embedded posture is corrected by pressing the embedded member.

  According to the method mode of the present invention, it is possible to build in the desired position while correcting the posture of the built-in member sequentially fed to the desired posture.

  The pressing member is configured to be extendable and retractable. After repeating the first step to the fifth step to build the first erection member in the erection groove and correct the erection posture, Steps 4 to 4 are repeated to send the second erection member to the erection groove, shorten the pressing member, and execute the fifth step to correct the erection posture of the second erection member. Is good.

  As can be understood from the above description, according to the system and method for installing the built-in member directly under the underground obstacle according to the present invention, the underground obstacle can be removed from the excavated portion formed on the side of the underground obstacle. A lateral guide member having a running rail and at least two pulleys is disposed in a guide groove extending directly below, and a feed wire and a return wire are attached to a carriage mounted above the erection member. Since the wire is connected to the feed winch and the return winch on the ground via the pulley, the built-in member is caught while the built-in member is sent to the built-in groove, and the movement is caused. When it becomes impossible to remove, it is possible to release the catch by operating the return winch and then operate the feed winch again to send the built-in member to the predetermined position of the built-in groove It made.

It is the schematic diagram explaining the 1st step of the method of building a built-in member directly under the underground obstacle of this invention. FIG. 2 is a schematic diagram illustrating a first step following FIG. 1. It is the schematic diagram explaining the 2nd step. (A) is a perspective view of the horizontal direction guide member constructed at the 2nd step, (b) is a bb arrow line view of (a), (c) is a cc arrow of (a). FIG. It is the schematic diagram explaining the 3rd step. FIG. 6 is a schematic diagram illustrating a third step subsequent to FIG. 5. It is the schematic diagram explaining the reinforcement rod which is a built-in member, and the trolley | bogie arrange | positioned above it. It is the schematic diagram explaining the 4th step. FIG. 9 is a schematic diagram illustrating a fourth step subsequent to FIG. 8. FIG. 10 is a schematic diagram illustrating a fourth step subsequent to FIG. 9. In a 4th step, a built-in member or a trolley is caught, and it is a mimetic diagram explaining a state where a trolley is returned in order to cancel a catch. It is the schematic diagram explaining the 4th step following FIG. 11, and is the figure which showed the state in which the sent reinforcement bar was inclined. It is a schematic diagram explaining the situation which amends the inclination posture of a reinforcing bar rod. It is a mimetic diagram explaining the situation where a predetermined number of reinforced concrete rods were built directly under the underground obstacle. It is the schematic diagram explaining other embodiment of the condition which built the reinforcing bar rod of the predetermined radix directly under the underground obstacle.

  Hereinafter, with reference to the drawings, an embodiment of a method and system for building a built-in member directly under a ground obstacle according to the present invention will be described. In the illustrated example, a reinforcing bar is used as the erected member, but the erected member has various objects such as a box buried in the basement in addition to the reinforcing bar.

(Embodiment of a method and system for installing a built-in member directly under a ground obstacle)
FIGS. 1-14 (except for FIG. 4, FIG. 7 in detail) show the method of building an erection member directly under the underground obstacle of this invention in that order. Specifically, FIGS. 1 and 2 are schematic views illustrating the first step of the method of building a built-in member directly below the underground obstacle of the present invention in that order, and FIG. 3 illustrates the second step. 5 and 6 are schematic diagrams illustrating the third step in that order, and FIGS. 8 to 14 are schematic diagrams illustrating the fourth step.

  The method shown in the figure is a method in which a reinforcing bar for the underground continuous wall is built immediately below the underground obstacle GS in the ground G. In each drawing, in one reinforcing bar rod R shown in a cross section where the lateral guide member 10 exists, a carriage 50 is mounted above the reinforcing bar rod R, and this is inside the horizontal guide member 10. The plurality of (multiple units) reinforcing bar rods R sequentially move.

  First, as shown in FIG. 1, the excavator E excavates the side of the underground obstacle GS, and excavates to the first level (L1) below the underground obstacle to create the excavation part GH. To do. FIG. 1 shows a case where the excavation part GH is created only on one side of the underground obstacle GS. However, when the excavation part GH is created also on the other side of the underground obstacle GS, The cut-out portions GH are formed on the left and right sides of the obstacle GS.

  Next, starting from the excavated portion GH, the drilling hole is advanced in the horizontal direction by a backhoe or human power (not shown) to form a guide groove SH extending to just below the underground obstacle GS as shown in FIG. The guide groove SH is a groove for installing one lateral guide member (the first step).

  When the guide groove SH is formed, as shown in FIG. 3, the lateral guide member 10 extending from the cut portion GH to the guide groove SH is applied.

  As shown in FIGS. 4A, 4B, and 4C, the lateral guide member 10 is composed of a substantially C-shaped wall body whose cross-sectional shape viewed from the longitudinal direction is directed downward. The region 10b is located immediately below the region 10b, the region 10a on the back side of the region 10b, and the cut portion region 10c on the cut portion GH side.

  A hollow 11 in which a carriage 50 described later travels and a lower opening 12 communicating with the hollow 11 are provided inside the lateral guide member 10, and a traveling rail 13 on which the carriage 50 travels is provided on the left and right inner walls. It is fixed as an oblique posture. In addition, you may provide the partition wall which closes the hollow 11 in the intermediate part of the direct area | region 10b.

Further, an upper opening 14 through which the reinforcing bar rod R penetrates downward is provided in the cut-out portion region 10c.
Further, two pulleys 41 and 42 (or sheaves) are attached to the lower surface of the ceiling of the lateral guide member 10.

  On the other hand, a separate pulley 43 is provided on the ground edge portion of the excavation portion GH, and two winches 20 and 30 are disposed behind the pulley 43.

  Here, the front winch 20 is a feeding winch and is a winch that is actuated when the reinforcing bar rod R is fed, and the rear winch 30 is a return winch, and the reinforcing bar due to some factor during the feeding of the reinforcing rod rod R. The winch is actuated when the barb R is caught and the barb R is returned in the direction opposite to the feed direction when the hook is released.

  The construction of the lateral direction guide member 10 may be constructed by assembling reinforcing bars at the site and placing concrete, or by loading and assembling a precast member.

  As described above, the lateral guide member 10 is constructed, and the feeding winch 20 and the return winch 30 are installed (the second step). The installation of the feeding winch 20 and the returning winch 30 can be performed in the fourth step in which the reinforcing bar rod R is actually suspended, but in the illustrated example, it is performed in the second step. And

  When the lateral guide member 10 is constructed in the guide groove SH, the excavator GH is further digged downward from the level L1 by an excavator (not shown), and excavation is performed to a predetermined excavation depth L2. Here, it is preferable to use a continuous underground wall excavator using the upper opening 14 provided in the lateral guide member 10 as an excavation groove ruler. By performing the construction in this way, the excavation part GH is created in the vertical direction from the level L2 of the excavation part GH toward the ground, and the excavation groove is created in the excavation part GH from the level L1 to the excavation depth L2.

  After the excavation has progressed to the excavation depth L2, as shown in FIG. 5, a bladed excavator S is used, the cutting part M is lifted in the horizontal direction, and widening excavation is performed upward (X1 direction). Thus, as shown in FIG. 6, the built-in groove CH is formed immediately below the underground obstacle GS and directly below the lateral guide member 10. Here, the width of the built-in groove CH is wider than the width of the reinforcing bar rod R by the amount covered by the concrete.

  As shown in FIG. 6, in the state in which the built-in groove CH is formed, the lateral guide member 10 is supported by the ground on the back side region 10a and the cut-out portion region 10c. It is firmly supported in the ground (the third step).

  Next, it shifts to the installation of the reinforcing bar rod R in the cut-off part GH. A plurality of rebar rods R are connected on the ground, and a carriage 50 is attached above one of the rebar rods R via suspension wires 51 as shown in FIG.

  Here, the carriage 50 is equipped with a frame body having four wheels and a suspension jig 52 that is suspended by a wire hook of a crane. The wheel preferably has a tapered surface on the surface in contact with the rail. Since the opening width of the lower opening 12 shown in FIG. 4 is narrower than the wheel running width of the carriage 50 shown in FIG. 7, the carriage 50 that has passed through the upper opening 14 can be placed on the traveling rail 13.

  As shown in FIG. 8, the feeding wire 21 extending from the feeding winch 20 is attached to the carriage 50 via pulleys 43, 41, 42, and the returning wire 31 extending from the return winch 30 is attached to the carriage 50 without going through the pulley. In the state where the wire hook suspended from the crane BS is engaged with the suspension jig 52, the carriage 50 and the reinforcing bar R are suspended from the cut-off portion GH (X2 direction).

  As shown in FIG. 9, the reinforcing bar R suspended from the excavation part GH is suspended downward through the upper opening 14 of the lateral guide member 10, and the cart 50 above the reinforcing bar R has 4 Two wheels are mounted on the travel rail 13 of the lateral guide member 10.

  Here, since the lateral guide member 10 is configured by a substantially C-shaped wall body facing downward, and the traveling rail 13 is fixed in an inclined posture, earth and sand are placed on the rail 13. It can suppress that it accumulates and obstructs running of cart 50.

  As shown in FIG. 9, an excavation part GH formed on the side of the underground obstacle GS, a guide groove SH extending from the excavation part GH to directly below the underground obstacle GH, and below the guide groove SH A built-in groove CH that is formed and communicated with the guide groove SH, a lateral guide member 10 that is formed from the cut-out portion GH to the guide groove SH, and includes the traveling rail 13 and at least two pulleys 41 and 42; From the sending winch 20 and the returning winch 30 installed on the ground, the carriage 50 mounted above the reinforcing bar R, the feeding wire 21 and the return wire 31 mounted on the carriage 50, A system 100 for building a built-in member directly under a middle obstacle is configured.

  Next, as shown in FIG. 10, the feeding winch 20 is operated to pull the feeding wire 21 (Q1 direction), and the carriage 50 is laterally moved in the first direction along the traveling rail 13 of the lateral guide member 10. It moves (Y1 direction) and sends the reinforcing bar R to the erection groove CH. At this time, the return winch 30 is loosened.

  When the carriage 50 or the reinforcing bar rod R is not able to move during the feeding of the reinforcing bar rod R to the installation groove CH, the operation of the feeding winch 20 is stopped, as shown in FIG. Next, the return winch 30 is operated to pull the return wire 31 (Q2 direction), and the carriage 50 and the reinforcing bar rod R are returned to the second direction opposite to the first direction (Y2 direction).

  By this operation, after the catch of the carriage 50 and the reinforcing bar R is released, as shown in FIG. 12, the feeding winch 20 is actuated again to pull the feeding wire 21 (Q1 direction), and the carriage 50 is moved to the lateral guide member. The steel bars are moved laterally in the first direction along the ten travel rails 13 (Y3 direction), and the reinforcing bar rod R is sent to the erection groove CH.

  At this time, as shown in the figure, although the upper part of the reinforcing bar rod R moves in the first direction in the carriage 50, there is a possibility that the lower part of the reinforcing bar rod R cannot follow the movement of the upper portion. In this way, the lower portion can be inclined at an angle θ.

  In such a case, as shown in FIG. 13, a pressing mechanism 60 that corrects the built-in posture of the reinforcing bar R is installed, and the central portion and the lower part of the reinforcing bar R are placed at the center and the lower part by the pressing member 63 that is a component thereof. By pushing in the direction 1, the built-in posture of the reinforcing bar rod R can be corrected to a desired vertical posture, for example.

  More specifically, first, the longitudinal guide member 61 is built in the cut portion GH, and the pressing member 63 is rotatably mounted on the slider 62 that can be moved up and down along the longitudinal guide member 61. A rotation wire 64 is attached to 63 and the rotation wire 64 is connected to a rotation winch 65 installed on the ground. The raising / lowering winch 66 is operated to lower the slider 62 along the longitudinal guide member 61, the turning winch 65 is operated to lift the pressing member 63 (Z1 direction), and the reinforcing member R is pressed against the pressing member 63. This corrects the built-in posture (the fourth step).

  As shown in FIG. 14, the fourth step is similarly performed on the second reinforcing bar rod R and the third reinforcing bar rod R, so that a plurality of groups are arranged in the depth direction of the lateral guide member 10. Can be built in a vertical posture directly below the underground obstacle GS.

  As shown in FIG. 15, when the underground continuous wall is constructed by arranging the reinforcing bar R in the entire region directly below the underground obstacle GS, the first step on the left and right sides of the underground obstacle GS A 5th step is implemented and the horizontal direction guide member 10 is constructed just under it over the full width of the underground obstacle GS.

  Although illustration is abbreviate | omitted, an underground continuous wall is constructed just under the underground obstacle GS by filling concrete into the built-in groove CH after this. Further, the hollow 11 of the lateral guide member 10 may be filled with concrete or the like and integrated with the underground continuous wall.

  According to the method and the system 100 for installing the built-in member directly under the underground obstacle shown in the figure, the guide groove SH extending from the cut-out portion GH formed on the side of the underground obstacle GS to immediately below the underground obstacle GS. A lateral guide member 10 having a traveling rail 13 and at least two pulleys 41 and 42 is disposed on the rail 50, and the feed wire 21 and the return wire 21 are returned to the carriage 50 mounted above the reinforcing bar R as a built-in member. Wires 31 are mounted, and these wires 21 and 31 communicate with the feed winch 20 and the return winch 30 on the ground via pulleys 41 and 42 (wire 31 is only the pulley 41). Therefore, when the built-in member R is caught while the built-in member R is being sent to the built-in groove CH and cannot move, the return winch 30 is actuated to catch the built-in member R. Release the Ri, it is possible to feed a predetermined position of the groove CH like an anchor member R like an anchor to operate the feed winch 20 again. Further, the posture of the erection member R can be corrected by the pressing mechanism 60, and the erection member R can be erected directly below the underground obstacle GS with high accuracy.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. They are also included in the present invention. For example, the case where the excavation part GH constructs the excavation part GH by the excavator E has been described, but excavation may be performed using machinery by the excavation method up to the L1 level. The cut portion GH may be constructed using a steel material such as steel. For example, in the first step, the ground (level L0) is first created at a depth shallower than the first level (L1), and the excavation is performed immediately below the underground obstacle GS while supporting by underpeening, and then the guide groove SH may be created. By constructing in this way, the displacement of the underground obstacle can be prevented. In addition, the excavation part GH may be provided on both sides of the underground obstacle GS, a guide groove may be formed from both, and a lateral guide member may be installed. By performing construction in this way, the construction period can be shortened.

  DESCRIPTION OF SYMBOLS 10 ... Lateral guide member, 10a ... Back side area | region, 10b ... Directly below area | region, 10c ... Cut-off part area | region, 11 ... Hollow, 12 ... Lower opening, 13 ... Running rail, 14 ... Upper opening, 20 ... Feeding winch (winch ), 21 ... feed wire, 30 ... return winch (winch), 31 ... return wire, 41, 42, 43 ... pulley, 50 ... cart, 51 ... suspending wire, 52 ... suspending jig, 60 ... pressing mechanism , 61 ... Vertical guide member, 62 ... Slider, 63 ... Pressing member, 64 ... Rotating wire, 65 ... Rotating winch, 66 ... Elevating winch, 100 ... System for installing a built-in member directly under a ground obstacle (System), GS: underground obstacle, GH: excavation part, SH ... guide groove, CH ... built-up groove, S ... expanded wing excavator, E ... excavator, R ... rebar rod (built-in member), M ... Cutting part

Claims (7)

An excavation section created on the side of the underground obstacle,
A guide groove extending from the excavation part to at least directly below the underground obstacle,
A built-in groove formed below the guide groove and communicating with the guide groove;
A lateral guide member formed across the guide groove from the cut-out portion and comprising a travel rail and at least two pulleys;
A feed winch and a return winch installed on the ground; and
A carriage mounted above the built-in member;
A feed wire and a return wire mounted on a carriage, each comprising a feed wire and a return wire that can be wound around each of the feed winch and the return winch via a pulley. And
In the state where the built-in member provided with the carriage on the upper side is suspended from the cut-off portion, and the carriage is engaged with the lateral guide member,
When sending the built-in member into the built-in groove, the feed winch is actuated to move the carriage laterally in the first direction along the traveling rail of the lateral guide member, and the built-in member is sent into the built-in groove. It has come to be,
When returning the erection member in the second direction opposite to the first direction, the erection member is returned by the return winch ,
Transverse guide member includes a cutting region on the cutting unit, and immediately below the region just below ground obstacle in the guide groove, and the back-side region of the inner side than the region directly under the guide grooves are composed of,
The region immediately below consists of a substantially C-shaped wall body whose cross section is directed downward, and two rails are arranged inside the substantially C-shape,
The cut-out portion region has a through portion in which the upper wall is removed from the substantially C-shaped wall body whose cross section is directed downward, and the built-in member suspended through the through portion is downward. A system that allows building materials to be built directly under underground obstacles. The system for building an erection member directly under an underground obstacle according to claim 1 , wherein the rail surface of the traveling rail on which the carriage travels has an oblique posture. It further includes a pressing mechanism that presses the built-in member to correct the built-in posture,
The pressing mechanism is
A longitudinal guide member built along the excavation part;
A slider that is movable up and down along the longitudinal guide member, and a pressing member that is rotatably mounted on the slider;
A rotating wire attached to the pressing member;
The system for building an erected member directly under a ground obstacle according to claim 1 or 2 , comprising a turning winch installed on the ground and through which a turning wire passes. The system for building an erection member directly under the underground obstacle according to claim 3 , wherein the pressing member is extendable in the longitudinal direction. It is a method of building a built-in member directly under an underground obstacle,
A first excavation part is created by digging down to a first level below the underground obstacle on the side of the underground obstacle, and then a guide groove is created from the opening part to at least directly below the underground obstacle. Steps,
A second step of constructing a lateral guide member having a running rail and at least two pulleys from the cut-out portion to the guide groove, and installing a feed winch and a return winch on the ground;
The excavation part is advanced from the first level to the second level, which is the final excavation level, and the expanded excavator is expanded to create a built-in groove that communicates with the guide groove below the guide groove. 3 steps,
A carriage is mounted above the built-in member, and the feeding wire and return wire attached to the carriage are connected to the feeding winch and the return winch installed on the ground via pulleys, and the carriage is In the state where the built-in member provided is suspended from the excavation part and the carriage is engaged with the lateral guide member, the feeding winch is operated to move the carriage in the first direction along the running rail of the lateral guide member. A fourth step of laterally moving and sending the erection member into the erection groove,
In the fourth step, when returning the erected member in the second direction opposite to the first direction, the erected member is returned by the return winch. How to put in. Subsequent to the fourth step, the method further includes a fifth step of pressing the erection member to correct the erection posture,
The fifth step is
A longitudinal guide member is built along the cut-out part,
A pressing member is rotatably mounted on a slider that can be moved up and down along the longitudinal guide member, a rotating wire is mounted on the pressing member, and the rotating wire leads to a rotating winch installed on the ground. 6. The underground obstacle according to claim 5 , wherein the slider is moved down along the longitudinal guide member, the rotating winch is operated to lift the pressing member, and the mounting member is pressed by the pressing member to correct the mounting posture. A method of building a built-in member directly below. The pressing member is configured to expand and contract,
After repeating the first step to the fifth step to build the first erection member into the erection groove and correct the erection posture,
The first step to the fourth step are repeated to send the second erection member to the erection groove, the pressing member is shortened and the fifth step is executed to change the erection posture of the second erection member. The method of building a built-in member directly under the underground obstacle according to claim 6 to correct.

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