JP3445255B2 - Slope leveling machine and slope leveling method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slope leveling machine for stamping the slope of a rubble foundation for installing heavy structures such as breakwaters laid on the sea, and a slope leveling method.

[0002]

2. Description of the Related Art Conventionally, rubble stone foundations have been used as foundations for port structures such as breakwaters. The rubble foundation is a mount with a trapezoidal cross section formed by inserting a large number of relatively large stone materials having a weight of several tens to several thousands kg and a perimeter of 1 to 2 m into the seabed. Heavy structures such as caisson will be installed on the rubble foundation. In order to secure the installation stability of the heavy structures such as the caisson, work for leveling the top end of the rubble foundation is performed in the foundation work.

Hereinafter, a weight type rubble leveling method, which is a conventional method for leveling the top of a rubble foundation, will be described. This method is a method in which the top end of the rubble stone foundation is tamped with a weight that is assembled in a truss shape with steel angles and has a steel ingot attached to the lower end of a turret having a bottom of several meters square. The weight weighs about 5
It is 0t. Specifically, the upper end of the weight is supported by a hoist of a hoist ship, the hoist lifts the weight several meters above the top, and the hoist is dropped to the top. This was done over the entire top of the rubble foundation, and the whole top was tamped and leveled.

[0004]

However, since the slope of the rubble foundation was an inclined surface,
The above-mentioned weight type rubble leveling method could not be used. Therefore, the work to level the slope of the rubble foundation is performed manually by the diver, and there is a problem that the work efficiency is poor.
In addition, there was a problem that the finish was not uniform due to the difference in skills of the divers who worked.

Further, there is a problem that it is difficult to secure the safety of the diver because the work is performed under the sea. In particular,
Recently, with the increase in the size of port construction itself, the work for leveling the slopes has become deep-water work in deep water places, and therefore improvement in safety against diving diseases is required.

The object of the present invention is to improve the work efficiency of the step of leveling the slope of a rubble foundation, to make the finish uniform, and to improve the safety of workers, and To provide a slope leveling method.

[0007]

The slope leveling machine of the present invention has the following constitution in order to solve the above problems.

[0008] (1) and the base to be placed on the top end of the riprap foundation stacked stone, is <br/> connected to the connecting portion provided on a side surface of the pedestal, location along the slopes of the riprap foundation comprising a plate-like leveling member which Ru him, and on the pedestal is abutting surface to slip member is attached between the top end, the leveling member
Is raised from the slope of the rubble foundation above the pedestal.
It is rotatably connected in the pulling direction.

In this invention, a plate-shaped leveling member rotatably connected to a pedestal placed on the top of the rubble foundation is hoisted by a hoist, and the hoisted leveling member is dropped on the slope. Thus, the slope can be tamped and leveled.

As described above, since the slope of the rubble foundation can be leveled by the machine, the working efficiency can be improved and the finish can be made uniform.

Further, since it is possible to eliminate the leveling work on the slope in the sea by the diver, the diver is not exposed to the risk of diving disease, and the safety in the foundation work of the rubble foundation is improved. You can

(2) A plurality of holes are formed in the leveling member.

According to the present invention, when the leveling member is dropped on the slope in the sea, the plurality of holes function as drain holes, and the drop in the falling speed of the leveling member in the sea is suppressed.

(3) The anti-slip member is a plurality of protrusions provided on the contact surface with the top end.

According to the present invention, the protrusion provided on the pedestal is pierced at the top end to prevent the movement of the pedestal to which the leveling member is connected in the step of leveling the slope of the leveling member that is lifted and dropped. it can.

(4) The leveling member is formed with a connecting portion for rotatably connecting another leveling member.

According to the present invention, another leveling member can be connected to the leveling member, and the slope can be leveled by the other leveling member. Therefore, even for a rubble foundation formed at a deep water location, the entire slope can be leveled by connecting another leveling member to the leveling member connected to the pedestal.

[0018]

1A is a front view of a pedestal that constitutes a slope leveling machine according to an embodiment of the present invention, and FIG. 1B is a side view of the pedestal. Further, FIG. 2A is a top view of a leveling member which constitutes the slope leveling machine.
(B) is a side view of the leveling member.

The pedestal 1 is made by solidifying concrete in a columnar shape, and has a weight of about 50t. The pedestal 1 has hooks 2 on the front surface for connecting the equalizing members 10 at equal intervals. The hook 2 is rotatable in a direction indicated by an arrow in FIG. Further, combs 3 are provided on the bottom surface of the pedestal 1 at equal intervals. The interval at which the hook 2 is provided and the interval at which the comb 3 is provided may be the same or different.

The leveling member 10 is a plate-shaped member made of steel, and is provided with a ring 11 for connecting to the hook 2 provided on the pedestal 1. Two rings 11 are provided along a specific piece (upper side in FIG. 2A). The space between the rings 11 and the space between the hooks 2 provided on the pedestal 1 are the same. Further, two hooks 12 are provided on the piece opposite to the piece on which the ring 11 is provided. The distance between the hooks 12 is the same as that of the ring 11. The hook 12 is rotatable in the direction shown by the arrow in FIG. The hook 12 has a structure for connecting another leveling member 10. In addition, the leveling member 10 has a hole 1
Many 3 are formed. Further, the leveling member 10 is provided with a mounting bracket 14 for mounting a wire rope (hereinafter, simply referred to as a wire) used when hoisting with a crane.

The foundation work for forming a rubble foundation on the sea will be described below. In this, a step of leveling the slope of the rubble foundation using the slope leveling machine of this embodiment will be described.

First, a rubble foundation is formed on the sea.
As is well known, the rubble stone foundation is a mount having a trapezoidal cross section formed by inserting a large number of relatively large stone materials having a weight of several tens to several thousands kg and a perimeter of 1 to 2 m into the seabed. (See Figure 3). A hoist ship 50 is usually used for loading stone materials.

FIG. 3 shows an example of a rubble foundation 21 whose top is lower than the sea surface and is wholly located in the sea, and the stone material is omitted from the center of the rubble foundation 21. Recently, as the port construction itself becomes larger, the rubble foundation 21 tends to be formed in a place where the water depth is deep, and the entire rubble foundation 21 is often located in the sea as shown in FIG.

Next, the top end of the rubble stone base 21 formed on the sea is tamped and leveled. This step is performed by, for example, a known weight type rubble leveling method. Specifically, as shown in FIG. 4, the hoist of the hoist ship 50 is the upper end of a weight 30 in which a steel ingot is attached to the lower end of a turret that is assembled in a truss shape with steel angles and has a bottom of several meters square. Supported by a hoist, this weight 3
0 is lifted a few meters above the top, and the suspended weight 30 is dropped to the top. This is performed over the entire top of the rubble foundation 21, and the top is tamped and leveled.

When the entire top end of the rubble foundation 21 is leveled by the above-mentioned weight type rubble leveling method, the step of leveling the slope of the rubble level 21 is executed. In this step, the slope leveling machine according to the embodiment of the present invention is used. First, pedestal 1 is rubble foundation 2
Place it on the top of No. 1 (see Fig. 5). Fig. 5 shows rubble foundation 21
It is the figure which abbreviate | omitted illustration of the individual stone materials which form. As shown in FIG. 5, the pedestal 1 is placed near the boundary between the top and the slope of the rubble foundation 21. The pedestal 1 installed has the comb 3 piercing the top end of the rubble foundation 21 to prevent movement on the top end. In addition, the hook 2 is a rubble foundation 21
It is located on the slope side of.

Next, the leveling member 10 is connected to the pedestal 1 placed on the top of the rubble foundation 21 (see FIG. 6). Specifically, the ring 11 of the leveling member 10 is hooked on the hook 2 of the pedestal 1. As described above, since the hook 2 is rotatable, the hook 2 is rotated by the weight of the leveling member 10 connected thereto, and the leveling member 10 is moved to the rubble foundation 21 as shown in FIG.
It will be placed along the slope of. Since the pedestal 1 pierces the rubble foundation 21 with the comb 3 as described above,
Due to the weight of the connected leveling members 10, the rubble foundation 21 does not move from the top end to the slope side and does not slide down from the top end.

Then, the leveling member 10 is supported by the crane of the hoist ship 50 so that the leveling member 10 can be lifted. Specifically, as shown in FIG. 7 and FIG. 8, the wire 40 is attached to the fitting 14 of the leveling member 10, and the wire 40 is supported by the hook 41 of the crane. FIG. 7 shows a state in which the leveling member is lifted up.
Shows a state in which the leveling member is dropped. The hoist ship 50 is not shown in FIGS. 7 and 8.

In the step of leveling the rubble foundation 21, the leveling member 10 is lifted by the crane of the hoist ship 50 as shown in FIG. 7, and the leveling member 1 is lifted as shown in FIG.
By dropping 0 on the slope, the slope of the rubble foundation 21 is tamped and leveled. In addition, a large number of holes 1 provided in the leveling member 10
Since 3 functions as a water drain hole, the drop of the falling speed of the leveling member 10 in the sea is suppressed. Therefore, a sufficient amount of force is applied to the slope by the leveling member 10 that has been dropped. Thereby, the slope can be sufficiently compacted and leveled.

Further, by shifting the connection position of the leveling member 10 with respect to the pedestal 1, the entire slope of the rubble foundation 21 can be leveled. Furthermore, the slope on the opposite side can be leveled in the same process.

As described above, the rubble stone foundation 2 which is conventionally manually operated by a diver by the slope leveling machine of this embodiment.
Mechanization of the step 1 leveling process can be realized. As a result, the work efficiency of the step of leveling the slope of the rubble foundation 21 can be improved and the finish can be made uniform.
Further, since highly dangerous work in the sea by the diver can be eliminated, the safety of this work can be improved without the diver having a diving disease.

Further, as shown in FIG. 9, a caisson 45, which is a heavy structure, is installed at the top of the rubble foundation 21. Since the rubble foundation 21 is sufficiently tamped at the top and the slope, it is possible to suppress the collapse of the caisson 45 when it is installed.

Further, if the slope becomes long in the height direction, there may be a case where one leveling member 10 can only part of the slope in the height direction. In such a case, FIG.
As shown in FIG. 5, another leveling member 10 is connected to the leveling member 10 connected to the pedestal 1 to level the entire slope.

Specifically, first, the slope is leveled by the leveling member 10 connected to the pedestal 1, and then the leveling member 10 is connected to another leveling member 10 as shown in FIG. The slope of the other leveling member 10 is leveled by the same method as described above in which the crane of the hoist ship 50 lifts and drops the leveling member 10.
In addition, another leveling member 10 is added to the leveling member 10 described above.
Can be connected and the slope can be leveled.

As described above, since another leveling member 10 can be connected to the leveling member 10 and the slope can be leveled by the connected leveling member 10, the rubble foundation 21 having a long slope can be used. Even if there is, the entire slope of the rubble foundation 21 can be compacted and leveled. Further, another leveling member 10 connected to the pedestal 1 can be further separated. It is also possible to connect the leveling members 10 and to level the slope with this leveling member 10.

Further, although the leveling member 10 is made of steel and has a plate shape, the leveling member 10 may be divided into a lattice shape and filled with iron scraps or the like.

The embodiment of the present invention has been described by taking as an example the operation of leveling the slope of the rubble foundation 21 formed entirely in the sea. Even if there is, the slope can be tamped and leveled in the same working process.

[0037]

As described above, according to the present invention, it is possible to realize the mechanization of the leveling process of the slope of the rubble foundation, which has been performed manually by a diver. As a result, the work efficiency in the step of leveling the slope of the rubble foundation can be improved and the finish can be made uniform. Further, it is possible to eliminate highly dangerous work in the sea by the diver, and the diver is not exposed to the risk of diving disease, and the safety in the foundation work of the rubble foundation can be improved.

Further, since the slope of the rubble stone foundation is tamped, it is possible to prevent the rubble stone foundation from being broken when installing a heavy structure such as a caisson.

[Brief description of drawings]

FIG. 1 is a view showing a pedestal of a slope leveling machine according to an embodiment of the present invention.

FIG. 2 is a view showing a leveling member of the slope leveling machine according to the embodiment of the present invention.

FIG. 3 is a diagram illustrating formation of a rubble foundation.

[Fig. 4] Fig. 4 is a diagram for explaining the top leveling of a rubble foundation.

FIG. 5 is a diagram illustrating a state in which a pedestal is installed on the top of a rubble foundation.

FIG. 6 is a diagram illustrating a state in which a leveling member is connected to a pedestal installed at the top of a rubble foundation.

FIG. 7 is a diagram illustrating a step of leveling a rubble foundation by a leveling machine according to an embodiment of the present invention.

FIG. 8 is a diagram illustrating a step of leveling a rubble foundation by a leveling machine which is an embodiment of the present invention.

FIG. 9 is a diagram illustrating a step of leveling a rubble foundation by a leveling machine according to an embodiment of the present invention.

FIG. 10 is a diagram illustrating a step of leveling a rubble foundation by a leveling machine which is an embodiment of the present invention.

[Explanation of symbols]

1-pedestal 2-hook 3-comb 10-leveling member 11-ring 12 hooks 13-hole 14-Mounting bracket 21-Rubbish stone foundation 40-wire 45-Caison

Claims (6)

(57) [Claims] 1. A and the base for placing on the top end of the riprap foundation stacked stone, connected to the connecting portion provided on a side surface of said pedestal, said disposable
Comprising a plate-like leveling member which instructions are built along the slope of the stone foundation, and to the base is the contact surface to the slip preventing member is mounted between the top end, the leveling member is , The above-mentioned pedestal, the above-mentioned rubble foundation method
Slope that is connected so as to be rotatable in the direction of lifting from the surface
Leveling machine. 2. The slope leveling machine according to claim 1, wherein a plurality of holes are formed in the leveling member. 3. The slope leveling machine according to claim 1, wherein the anti-slip member is a plurality of protrusions provided on a contact surface with the top end. 4. The leveling member is formed with a connecting portion for rotatably connecting another leveling member.
The slope leveling machine according to any one of 3 above. 5. A pedestal is placed on the top end of a rubble foundation that is made by stacking stone materials, and the above-mentioned rubble foundation is attached to a connecting portion provided on a side surface of the pedestal .
A plate-shaped leveling member placed along the slope
Connected in a direction to lift from the slopes rotatably, above with the plate-like leveling member, is rotated relative to the base
Lift from the slope of the rubble stone foundation, and then smooth this plate
By dropping the member on the slope of the above-mentioned rubble foundation,
Slope leveling method to squeeze and level the slopes of . 6. The rubble foundation is formed in the sea.
Slope leveling method described in.