JP2014020004A - Dam body construction method and fixing device used for the method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promptly and efficiently perform dam body construction work by easily performing installation work for changing a continuous frame body from a contracted state to an elongated state in an installation part and installing the continuous frame body in the installation part.SOLUTION: In a continuous frame body 1, a plurality of frame bodies 2 are connected to be continued in one direction orthogonal with a center line of a tube of the frame body 2 formed tubular in such a manner that the center lines of the tubes of the frame bodies 2 are positioned in parallel with each other, leg parts provided along the one direction of the frame bodies 2 are formed to be folded, and the frame bodies 2 are configured to be freely elongated/contracted in the one direction. According to the dam body construction method, such a continuous frame body 1 is used and after the continuous frame body 1 is brought into the elongated state and installed in an installation part 90, the frame bodies 2 of the continuous frame body 1 in the elongated state are filled with fillers 3, thereby constructing a dam body 4. While fixing a side of one end 10 of the continuous frame body 1 in the contracted state in one direction to the installation part 90 by using a fixing device 50, a side of another end 11 of the continuous frame body 1 in the contracted state in one direction is moved away from the side of the one end 10 fixed to the installation part 90, thereby bringing the continuous frame body 1 into the elongated state.

Description

  The present invention relates to a method for constructing a bank body by installing a stretchable continuous frame body in an installation state in an extended state and filling the frame body with a filler, and a fixing device used in the method.

  An embankment construction method for constructing a levee body by filling each frame of the stretched continuous frame body with a filling material after the stretchable continuous frame body is stretched and installed in an installation part such as the ground It is known (see, for example, Patent Document 1).

JP 2006-283505 A

In the bank body construction method described above, installation work is required in which the continuous frame body is transported to the installation part in a contracted state (folded state), and the continuous frame body is extended from the contracted state to the extended state in the installation part. However, the installation work is complicated and takes time, and there is a problem that the levee body construction work cannot be performed quickly and efficiently.
The present invention provides a levee body construction method and a levee body construction method capable of easily and quickly performing a levee body construction work by installing a continuous frame from a contracted state to a stretched state in the installation part. A fixing device is provided.

According to the bank body construction method according to the present invention, a plurality of frames are continuous in one direction perpendicular to the center line of the cylinder so that the center lines of the cylinders of the frame body formed in a cylindrical shape are positioned parallel to each other. The side portions provided so as to be along the one direction of each frame body are bent so that each frame body is configured to be stretchable in the one direction. A levee body construction method for constructing a levee body by filling each frame of a stretched continuous frame body after the frame body is stretched and installed in an installation portion, and comprising a contracted continuous frame body By moving the other end in one direction of the continuous frame in the contracted state away from the one end fixed to the installation part in a state where one end in one direction is fixed to the installation part using a fixing device. Since the continuous frame is in the extended state, the installation part is changed from the contracted state to the extended state in the installation part. Easy installation work for installing, enabling the dam construction work quickly and efficiently.
Moreover, the operation | work which fixes the one end side of the one direction of a contracted continuous frame to an installation part using a fixing device, the one end side of the one direction of the contracted continuous frame from the one end side fixed to the installation part Work to move away from each other and install the continuous frame in the extended state in the installation part, Work to construct the dam body by filling each frame of the continuous frame in the extended state installed in the installation part For example, when building a levee body by unmanned construction at an installation site that is a disaster area, the continuous frame is changed from a contracted state to an extended state at the installation site. The installation work to install in the installation part can be done easily, and the dam body construction work can be done quickly and efficiently.
Since the fixing device used for the bank body construction method according to the present invention includes a holding frame part for holding the continuous frame body in a contracted state and a fixing part fixed to the installation part, The installation work of installing the continuous frame body from the contracted state to the extended state at the installation part can be easily performed, and the embankment construction work can be performed quickly and efficiently.
The fixing part is provided at the lower part of the fixing device, the lower end is formed in a sharp shape, and is configured to pierce the ground from the ground, so that the fixing device can be reliably and easily fixed to the installation part and installed. It is possible to reliably and easily perform the installation work of installing the continuous frame from the contracted state to the extended state at the installation portion.

The figure which shows the procedure of a bank body construction method. The perspective view which shows the structure of a continuous frame. The perspective view which shows the structure of the continuous frame provided with the sheet | seat inside each frame. The perspective view which shows a fixing device. The perspective view which shows the fixing device carrying the continuous frame body of a contracted state.

Embodiment 1
As shown in FIG. 1, the bank body construction method according to the first embodiment has the continuous frame 1 that is configured to be stretchable and stretched, and then installed in the installation unit 90 such as the ground. When the embankment body 4 is constructed by filling each frame body 2 continuous in one direction with the filler 3, the one end 10 side in one direction of the continuous frame body 1 in the contracted state is installed using the fixing device 50. In a state where the continuous frame 1 is fixed to the one end, the other end 11 side in one direction of the continuous frame 1 in the contracted state is moved away from the one end 10 side fixed to the installation portion 90 to bring the continuous frame 1 into the extended state. .

  As shown in FIG. 2, the continuous frame 1 has a plurality of frame bodies 2 orthogonal to the center line of the cylinder so that the center lines of the cylinders of the respective frame bodies 2 formed in a cylindrical shape are positioned in parallel to each other. The side portions 21 that are connected so as to be continuous in one direction and that are provided along the one direction of each frame body 2 in the extended state are formed to bend in the contracted state, and a plurality of frame bodies 2 are formed in the one direction. It is configured to be stretchable.

In other words, the continuous frame 1 is configured such that the left and right side portions along one direction of the continuous frame 1 are formed by a pair of long portions that are long in one direction and are opposed to each other at a predetermined interval in the extended state. 2; 2 ... The left and right side portions 21; 21 ... along one direction are formed, and the continuous frame body is formed by the short portions respectively provided at one end and the other end in one direction which is the longitudinal direction of the left and right long portions. A side 22 on one end and a side 23 on the other end in one direction are formed, and the inner space surrounded by the sides 21; 22; 23 is partitioned into a plurality of regions that are continuous in one direction. A plurality of partition portions 25 are provided.
Both side edges of the side part 22 on one end side of the continuous frame 1 and one side edge of the side part 21; 21 on one end side of the continuous frame 1 are connected via a hinge 6, and the other end side of the continuous frame 1. Both side edges of the side portion 23 and the side portion 21 on the other end side of the continuous frame 1 are connected to each other side edge of the continuous frame body 1 via the hinge 7, and the side portions 21; 21 adjacent to each other along one direction. Are connected via hinges 8 and 9.
In this case, the side end of the even-numbered side portion 21 counted from one end side or the other end side of the continuous frame 1, the side end of the even-numbered + 1th side portion 21, and the side end of the partition portion 25 are hinges 8. The partition part connection part 26 is formed through connection. The plurality of partition portions 25; 25... Are provided so as to be parallel to the side portion 22 on one end side and the side portion 23 on the other end side in the extended state and the contracted state of the continuous frame body 1. 1 includes a plurality of frame bodies 2; 2... Partitioned by a plurality of partition portions 25 along one direction and continuous in one direction.
Further, the side end of the odd-numbered side portion 21 counted from one end side or the other end side of the continuous frame 1 and the side end of the odd-numbered plus one side portion 21 are connected via the hinge 9 and bent. A connecting portion 27 is formed.

The side portions 21; 22; 23 and the partition portion 25 are formed of, for example, a rectangular metal net.
And hinge 6; 7; 8; 9 is comprised by the metal spiral (spiral) components which connect the metal wire of the side edge of the net | network body which forms each side part 21; 22; 23; 25, for example. The That is, by inserting a plurality of metal wires to be connected into the spiral space of the spiral component, a hinge is constructed in which each metal wire can rotate around the axis of the metal wire in the spiral space of the spiral component. .

  The continuous frame 1 configured as described above is in an extended state (a state in which the left and right side portions 21; 21... Of the continuous frame 1 face each other in parallel with a predetermined interval). 22 and the side 23 on the other end side move in a direction approaching each other, the adjacent side part 21 and the side part 21 are bent at the bent connecting part 27 and the partitioning part connecting part 26 and approach each other. When the side portion 22 on the one end side and the side portion 23 on the other end side move away from the contracted state, the stretched state is obtained.

  In addition, as shown in FIG. 3, when the side parts 21; 22; 23 of the continuous frame 1 and the partition part 25 are formed with the mesh body as mentioned above, the cylindrical shape of the continuous frame 1 is shown. A sheet 30 that closes the mesh opening of the mesh body that forms each frame body 2 from either opening side of either end opening 28; 29 of the cylinder of each frame body 2 is attached to the inside of each frame body 2.

  Then, the other end 11 side in one direction of the contracted continuous frame 1 is installed in a state where the one end 10 side of the continuous frame 1 in the contracted state is fixed to the installation unit 90 using the fixing device 50. By moving away from the one end 10 side fixed to the portion 90, the continuous frame 1 is brought into an extended state, so that one opening side of each of the plurality of frames 2 of the continuous frame 1 is on the ground or the like. In this state, one opening of each of the plurality of frames 2 of the continuous frame 1 is closed by the installation unit 90. In this state, the plurality of frames 2 of the continuous frame 1 are closed. The bank body 4 can be formed by filling the filler 3 into the inside of the sheet 30 attached to the inside of the frame body 2 from the other opening side. The filler 3 is, for example, sand, earth, stone, concrete, mortar or the like.

  As shown in FIG. 4, the fixing device 50 is formed by combining, for example, metal bars and the like, and is fixed to the holding frame portion 51 for holding the contracted continuous frame body 1 and the installation portion 90. A fixing portion 52 and a handle portion 53 are provided.

The holding frame portion 51 includes, for example, a lower frame frame 61, left and right horizontal frame frames 62; 62, and a rear frame frame 63.
For example, the fixing portion 52 is configured to protrude downward from the lower surfaces of the left and right rear ends of the lower frame frame 61, and has a configuration in which the lower end is formed in a sharp shape. For example, as shown in FIG. 4, the fixing portion 52 is formed in a sharp shape of a crosspiece 64 configured to serve as both the left and right horizontal frame frames 62; 62 and the left and right crosspieces of the rear frame frame 63. The fixed lower end is projected downward from the lower surface of the lower frame frame 61, and the fixing device 52 is securely inserted into the installation portion 90 by, for example, piercing the fixing portion 52 from the ground of the installation portion 90, and Easy to fix.
The handle 53 is, for example, a structure in which both ends are rotatably connected to the upper ends of the front bars 68; 68 of the left and right horizontal frame frames 62; 62, or are fixedly connected. It is a configuration.

For example, as shown in FIG. 5, the continuous frame 1 in a contracted state is accommodated in a space surrounded by a lower frame frame 61, left and right horizontal frame frames 62; One end 10 side in one direction of the frame body 1 is connected to a crosspiece 64 configured to serve as both the left and right horizontal frame frames 62; 62 of the fixing device 50 and the left and right crosspieces of the rear frame frame 63, for example. The other end 11 in one direction of the continuous frame 1 in the contracted state is connected to the front end side of the horizontal rail 65 of the left and right horizontal frame frames 62;
For example, a gate-shaped suspension portion forming body 73 is connected to the upper end side of the other end 11 in one direction of the continuous frame 1 in a contracted state by a connecting tool 76. The hanging part forming body 73 is, for example, a horizontal bar-like hanging part that is stretched over the upper end portions of the left and right vertical column portions 77; 77 and the left and right vertical column portions 77; 77 and connected to the upper end portions by welding or the like. 78.

The case where the bank body construction method by Embodiment 1 is performed by unmanned construction, for example is demonstrated.
For example, when the embankment body 4 is constructed in the installation section 90 in a disaster area such as landslide or flood, unmanned construction that performs unmanned work by remotely operating heavy machinery is performed in order to avoid danger of workers. Is desired.
When performing unmanned construction, for example, as shown in FIG. 1, for example, a backhoe 70, which is a heavy machine that performs remote building construction work remotely, is operated by a remote vehicle such as a dump truck that is operated remotely. Transport to. A suspension member 72 is attached to the bucket 71 of the backhoe 70.
Then, in a safe place, as shown in FIG. 5, the contracted continuous frame 1 in which the suspension portion 73 is attached to the other end 11 in one direction of the contracted continuous frame 1 is attached to the fixing device 50. The fixed device 50, which is accommodated and connected to the fixing device 50, is mounted on a loading platform of a transport vehicle such as a dump truck that is operated by remote control, and the transport vehicle is remotely connected. Operate by operation and transport to disaster area.
Next, the backhoe 70 is remotely operated, the hook portion of the suspension member 72 attached to the bucket 71 is hooked on the handle portion 53 of the fixing device 50, and the fixing device 50 is lifted from the loading platform of the transport vehicle to be in a contracted state. The fixing device 50 on which the continuous frame 1 is mounted is installed in the installation unit 90 in the disaster area. Then, the fixing device 50 is fixed to the installation unit 90 by remotely operating the backhoe 70 and pushing the upper end crosspiece 69 of the rear frame 63 from above with the bucket 71 to pierce the fixing unit 52 from the ground of the installation unit 90 into the ground. To do.
And after operating the backhoe 70 remotely and hooking the hook part of the hanging member 72 attached to the bucket 71 to the hanging part 78 of the hanging part forming body 73 of the fixing device 50, FIG. ), The other end 11 in one direction of the continuous frame 1 in the contracted state is moved away from the one end 10, and the continuous frame 1 is set in the extended state as shown in FIG. 1 (c). To do. Then, the backhoe 70 is operated remotely, and the packing 3 such as the earth and sand previously transported to the disaster area or the earth and sand of the disaster area is beaten with the bucket 71, and each frame of the continuous frame 1 in the extended state The bank body 4 can be formed by filling the sheet 30 of 2; 2,. In other words, the bank 30 is constructed of a continuous sandbag formed by filling the sheet 30 and the frame 2 functioning as sandbags with earth and sand.

  In addition, as the connection tool 74 that connects the one end 10 of the continuous frame 1 in the contracted state to the fixing device 50 and the connection tool 76 that connects the hanging portion forming body 73 to the fixing device 50, the continuous frame 1 in the contracted state is used. A connector having a strength that does not come off when the other end 11 in one direction is moved away from the one end 10 is used. Further, as the connecting tool 75 for connecting the other end 11 side of the continuous frame 1 in the contracted state to the fixing device 50, the other end 11 in one direction of the continuous frame 1 in the contracted state is moved in a direction away from the one end 10. Use a connector with the strength to disengage.

  According to the first embodiment, by using the fixing device 50, when the embankment body 4 is constructed by unmanned construction in the installation unit 90 in the disaster area, the continuous frame 1 is extended from the contracted state in the installation unit 90. The installation work can be easily performed in the state and installed in the installation part, and the dam body construction work can be performed quickly and efficiently. That is, one end 10 side in one direction of the continuous frame 1 in the contracted state is fixed to the installation area 90 in the disaster area using the fixing device 50, and the other end 11 side in one direction of the continuous frame 1 in the contracted state is fixed. Each of the continuous frame 1 in the extended state installed in the installation unit 90 is moved to move away from the one end 10 side fixed to the installation unit 90 so that the continuous frame 1 is set in the extended state and installed in the installation unit 90. The work of filling the filling 3 in the sheet 30 of the frame 2 and constructing the dam body 4 can be performed by unmanned construction that is performed by remotely operating a heavy machine such as the backhoe 70.

Embodiment 2
Note that the continuous frame may have a configuration in which a plurality of frames individually formed in a cylindrical mesh are connected so as to be continuous in one direction perpendicular to the center line of the cylinder. That is, in the case of this continuous frame, the partition part that separates the adjacent frames from each other includes a side on one end of one adjacent frame and a side on the other end of the other adjacent frame. It becomes the structure used as the double partition part formed by. In this case, a configuration in which a partition connecting portion is formed in which the side edges of the left and right sides of one adjacent frame and the side edges of the left and right sides of the other adjacent frame are connected via a hinge. It becomes.

  In the first and second embodiments, an example in which a continuous frame body including a plurality of frame bodies whose side portions are formed in a net-like body has been described. However, a plurality of frame bodies whose side portions are formed in a plate-like body. You may use the continuous frame provided with. In this case, the rigidity of the continuous frame is increased, and the sheet 30 is not necessary, so that the filler is directly filled in each frame.

Moreover, in Embodiment 1, the operation | work which fixes the one end 10 side of one direction of the continuous frame 1 of a contracted state to the installation part 90 of a disaster area using the fixing device 50, the one direction of the continuous frame 1 of a contracted state The other end 11 side is moved away from the one end 10 side fixed to the installation portion 90 to move the continuous frame 1 in the extended state and install in the installation portion 90, and the continuous extension state installed in the installation portion 90 Although the example which performs the operation | work which fills the filling material 3 in the sheet | seat 30 of each frame body 2 of the frame body 1 and constructs the bank body 4 by unmanned construction performed by operating a heavy machine remotely, these work was performed. It may be done by manned work by local workers.
In addition, a wheel loader, a dump truck, or the like may be used as a heavy machine that performs the above-described operations unmanned or manned.

Embodiment 3
The operation of installing the continuous frame 1 in the extended state on the installation unit 90 is performed by installing the fixing device 50 that houses the continuous frame 1 in the contracted state in the installation unit 90 and the other end of the continuous frame 1 in the contracted state. For example, one frame 2 on the 11th side is moved in a direction away from one end 10 and the sheet 3 inside the frame 2 is filled with the filler 3 to thereby provide one of the other frame 11 on the other end 11 side. The frame 2 is fixed to the installation unit 90, and the continuous frame 1 is extended by moving the fixing device 50 so that one end 10 of the continuous frame 1 is separated from the other end 11 fixed to the installation unit 90. You may make it install in the installation part 90 in a state.

  Further, the fixing device 50 may be configured not to include the lower frame frame 61 and the rear frame frame 63. That is, it is sufficient if the configuration includes at least the left and right horizontal frame frames 62; 62 that function as a holding frame portion for holding the continuous frame body in a contracted state, and the fixing portion 52 fixed to the installation portion 90. .

  A hinge such as a hinge may be used as the hinge. That is, the hinge may be configured to have a hinge function of transmitting a compressive force but not transmitting a moment. For example, the partition connecting portion and the bent connecting portion are thin and easily bent. You may use the continuous frame of the structure which carried out.

1 continuous frame body, 2 frame body, 3 filling, 4 levee body, 21 side part,
10 one end of the continuous frame, 11 the other end of the continuous frame, 50 fixing device, 51 holding frame,
52 fixed part, 90 installation part.

Claims (4)

A plurality of frames are connected so as to be continuous in one direction perpendicular to the center line of the cylinder so that the center lines of the cylinders of the cylindrical frame are positioned in parallel to each other, and the one direction of each frame A side frame provided along the side is formed to be bent and each frame body is configured to be stretchable in the one direction, and the continuous frame body is stretched and installed in the installation section. A levee body construction method for constructing a levee body by filling each frame of a continuous frame body in a stretched state later,
In a state where one end side in one direction of the continuous frame body in the contracted state is fixed to the installation part using a fixing device, the other end side in one direction of the continuous frame body in the contracted state is fixed from the one end side fixed to the installation part. A bank body construction method characterized in that the continuous frame body is extended by moving it away.   Work to fix one end of one direction of the continuous frame in the contracted state to the installation portion using a fixing device, so that the other end in one direction of the continuous frame in the contracted state is away from the one end fixed to the installation portion. Work to install the continuous frame body in the stretched state by moving to, the work of building the levee body by filling each frame body of the stretched continuous frame body installed in the installation unit, The embankment construction method according to claim 1, wherein the embankment construction method is performed by unmanned construction performed by remotely operating a heavy machine.   It is a fixing device used for the bank body construction method of Claim 1 or Claim 2, Comprising: The holding frame part for holding the continuous frame body of a contracted state, and the fixing part fixed to an installation part are provided. A fixing device characterized by that.   The fixing device according to claim 3, wherein the fixing portion is provided at a lower portion of the fixing device, has a lower end formed in a sharp shape, and is configured to pierce the ground from the ground.

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