JP3582791B1 - How to use excavated soil - Google Patents

Abstract

A method for efficiently and safely storing and utilizing excavated soil generated at a construction site is provided.
An excavated soil generated at a construction site is provided with a rectangular parallelepiped frame 40, a mounting portion 41 formed as a bottom of the frame 40, and receiving portions provided at four corners of an upper surface of the frame 40, respectively. 44, which is disassembled or folded at the time of transportation to fill each container 2 accommodated in the accommodation rack 4 which can be stacked flat, and to carry the plurality of accommodation racks 4 filled with excavated soil on the receiving portion 44. The excavated soil that has been stored by reversing the storage rack 4 at the backfilling site at the building site is used for backfilling.
[Selection diagram] FIG.

Description

  The present invention relates to a method for efficiently storing and utilizing excavated soil generated at a construction site.

  Excavated soil generated at a construction site due to the foundation work of a house or the like is classified into soil temporarily stored at the construction site and used for backfilling, and soil that is disposed of as surplus soil at a fee. The excavated soil used for backfilling is piled up in an empty space on the construction site and stored until backfilling. However, construction sites in cities and the like are often narrow, and there are not many empty spaces in the construction sites, so the storage space for excavated soil is small. Therefore, all excavated soil generated during foundation works etc. is disposed of as surplus soil, and the soil required for backfilling is separately purchased as guest soil. There is a problem of going up.

  On the other hand, a method has been proposed in which excavated soil is bagged and stored at a building site. When the soil is piled up in a mountain shape, there is a limit to the height that can be raised for a storage area with a certain area, and even if you try to raise the soil high, the soil will flow down to the foot part and infiltrate to other than the storage place. According to the bag body is filled with the excavated soil, the excavated soil is formed into a lump having a predetermined shape, and the excavated soil is flattened at an upper portion of the piled portion at a certain height, thereby flattening the bag body. Is piled up on the direct pile portion, the excavated soil piled up in the direct pile portion is maintained as a lump by the bag, so that the excavated soil can be piled higher without flowing down from the direct pile portion. Thereby, the storage amount of the excavated soil in the narrow land increases (see Patent Document 1).

JP-A-11-247222

  However, since the bag body is a flexible material such as cloth and does not stand alone when the excavated soil is not filled, it is necessary for an operator to support the opening of the bag body in the excavated soil filling operation. There is. In addition, after filling the excavated soil into the bag, it is necessary to arrange the bag into a stable shape. Generally, excavation of the ground is performed using a civil engineering machine such as a backhoe.However, a work process in which an operator opens a bag and receives excavated soil near the civil engineering machine is inefficient, and the worker is inefficient. Risk is high. Furthermore, even if the shape of the bag filled with excavated soil is adjusted to some extent, the directly piled part may collapse due to wind and rain because the excavated soil is merely piled up. The wrapped bag may fall or fall. In addition, excavated soil may contain protrusions such as stones, but it is handled by civil engineering and construction machinery in order to lift and move a bag filled with excavated soil or to pile it on a direct pile. At this time, the bag may be broken by the projection. Therefore, a more efficient and stable method of using and storing excavated soil is desired.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a method for efficiently and safely storing and using excavated soil generated at a construction site.

In the method of using excavated soil according to the present invention, excavated soil generated at a building site is provided at each of four corners of a rectangular parallelepiped frame, a mounting portion formed as a bottom of the frame, and an upper surface of the frame. A plurality of receiving racks, which are disassembled or folded during transportation and are stored in flat racks, and a plurality of receiving racks filled with excavated soil are supported on the receiving portions to be stacked. Then, the excavated soil is stored in a construction site, and the stored rack is turned over at a backfilling place in the construction site to use the stored excavated soil for backfill.

According to the present invention, since the excavated soil is filled in each container accommodated in the accommodation rack, a plurality of containers can be filled with excavated soil at a time, and the filling operation is made more efficient. Further, the stacking operation and the reversing operation of the containers can be performed in units of the accommodation racks, so that the efficiency is improved. In addition, since the storage rack can be disassembled or folded to enable flat stacking, transportation becomes efficient, and transportation costs can be reduced.

Hereinafter, a method of using the excavated soil according to the embodiment of the present invention will be described in detail.
FIG. 1 is a schematic perspective view showing the configuration of the container 2 according to the present embodiment. As shown in the drawing, the container 2 has a rectangular parallelepiped outer shape having an opening 2a on the upper surface, and is formed of a hard material. However, another container 2 is not stacked on the container 2. Therefore, the container 2 is not required to have a strength capable of supporting another container 2, and it is sufficient if the container 2 has sufficient strength to support itself while maintaining the opening 2a and to support the weight of the filled excavated soil. Therefore, the container 2 can be manufactured by plastic molding or bending and welding a sheet metal. The container 2 can be manufactured by assembling a plate-like member such as a pallet used in the field into a rectangular parallelepiped shape and fixing it with bolts or the like. It can also be made. On the other hand, as shown in FIG. 2 , the storage rack 4 can place a plurality of the containers 2 side by side, and the storage rack 4 itself can be stacked. Specifically, the storage rack 4 includes a rectangular parallelepiped frame 40 and a mounting portion 41 formed as the bottom of the frame 40. The frame 40 is formed of a steel material 42 having an L-shaped cross section. Are assembled so as to constitute each side of the rectangular parallelepiped, the combined portions of the respective steel materials 42 are fixed by welding, and a wire mesh 43 is stretched on a portion to be a side surface of the rectangular parallelepiped. The size of the frame body 40 is a size that can accommodate three containers 2 arranged in a line, but can be appropriately changed in consideration of workability and the like. The steel material 42 is an aggregate of the frame body 40, and needs to have a strength capable of supporting another storage rack 4 filled with excavated soil and stacked. Therefore, a bracing is provided to increase the strength of the frame body 40. You may do so. In the present embodiment, the steel material 42 having an L-shaped cross section is used, but it is a matter of course that another member such as a steel pipe can be used as an aggregate of the frame body 40. If the steel members 42 of the frame body 40 are not welded and fixed, but can be assembled at a building site using fasteners such as bolts, and can be disassembled or folded as needed during transportation to accommodate a flat rack. This is preferable because the transportation of No. 4 becomes efficient and the transportation cost can be suppressed. The wire mesh 43 stretched over the frame body 40 is for preventing the container 2 housed in the housing rack 4 from falling off, and a steel plate may be provided instead of the wire mesh 43. In consideration of the weight reduction of 4, the wire mesh 43 is preferable.

The upper surface of the frame 40 remains open, and receiving portions 44 for stably stacking the frame 40 of another storage rack 4 are provided at the four corners of the upper surface of the frame 40, respectively. FIG. 3 is an enlarged perspective view of the receiving portion 44. As shown in the drawing, the receiving portion 44 has a base portion 440 for supporting the bottom surface of another frame body 40 and a corner of a side surface of the frame body 40. The upper surface of the base 440 is horizontal at the corner of the upper surface of the frame 40, and the restrictor 441 is bent at the corner of the upper surface of the frame 40. It is fixed to the steel material 42 so as to be on the outside. Thereby, when another frame body 40 is stacked on the frame body 40, another frame body 40 can be supported horizontally by the base portion 440, and the side surfaces of the upper and lower frame bodies 40 by the regulating portion 441. Is positioned so as to be flush with each other, and the stacked frame bodies 40 are prevented from moving in the horizontal direction. Therefore, the frame bodies 40 can be stacked in a stable state. A bottom plate 45 is provided on the entire bottom surface of the frame body 40, as shown in FIG . The bottom plate 45 has sufficient strength to support the weight of the three containers 2 filled with the excavation degree, and for example, a steel plate can be used. Note that the number of containers 2 that can be stored in the storage rack 4 is arbitrary, and is not limited to the number described in the present embodiment.

Hereinafter, a method of using excavated soil according to the third embodiment using the container 2 and the storage rack 4 will be described.
In the operation of filling the container 2 with the excavated soil generated by the foundation work, as shown in FIG. 4 , a plurality of containers 2 are stored in the storage rack 4 in advance, and the storage rack 4 is placed near the excavation site. Thereafter, the ground is excavated by using a civil engineering and construction machine such as the backhoe 5, and the excavated soil is filled into the containers through the openings 2a of the containers 2. Since the container 2 is made of a hard material, the opening 2a is kept open even if the worker does not support the container 2. Further, since the plurality of containers 2 are arranged in a row, the plurality of containers 2 can be continuously filled with the excavated soil using the civil engineering construction machine, and the filling operation is made more efficient. This operation is repeated to fill each container 2 of the plurality of storage racks 4 with excavated soil.

Next, as shown in FIG. 5 , the storage rack 4 on which the plurality of containers 2 filled with excavated soil is placed is moved to a storage space at a building site by a lifting carrier such as a UNIC vehicle 6. Line up. Further storage racks 4 are stacked on the storage racks 4 as shown in the figure. Receiving parts 44 are provided at the four corners at the upper end of the frame body 40, and the receiving parts 44 support the frame bodies 40 of the storage racks 4 to be stacked in a horizontal state, and the side surfaces of the upper and lower frame bodies 40. Since the racks are positioned so as to be flush with each other, it is easy to line up and stack the storage racks 4, and the positional shift of the stacked storage racks 4 is prevented. Therefore, the storage racks 4 can be stacked efficiently and stably in a narrow storage space. Although the excavated soil storage container 1 after stacking is left until the backfilling work is performed, the excavated soil storage container 1 is stacked in a stable state and is safe. The container 2 can be efficiently and stably stored in a narrow storage space. Further, in the present embodiment, the work of stacking the containers 2 is performed in units of the storage racks 4, so that the work is made more efficient. Also, since the container 2 itself is not stacked to support other containers 2, the container 2 only needs to have enough strength to hold the filled excavated soil, and various types of containers can be freely selected. By storing the containers 2 in the storage rack 4 and storing them, the instability such as shaking of one container 2 does not directly affect the other containers 2 as in the case of stacking. The state stabilizes. In order to prevent excavated soil in the container 2 from containing rainwater due to rainfall, it is preferable to cover the opening 2a of the uppermost container 2 with a vinyl sheet or the like.

In the backfilling operation using the excavated soil stored in the container 2, as shown in FIG. 6 , each of the stacked storage racks 4 is moved to a backfilling place by a UNIC vehicle 6 or the like and lowered, and the hanging string is stored. Re-hang it on the bottom of the rack 4, lift it again, and turn it over. Thereby, the container 2 is also inverted, and the excavated soil flows out from the opening 2a to the backfilling place. Since such a reversing operation is also performed in units of the accommodation racks 4, the operation is made more efficient. This is sequentially repeated to perform the backfill operation. After completing the backfilling work in this way, surplus excavated soil is disposed of as surplus soil.

  The method of using excavated soil according to the present invention can be used for excavating the ground at the time of foundation work or the like, and thereafter, backfilling the soil at the excavated place.

FIG. 1 is a schematic perspective view showing a configuration of a container 2 according to an embodiment of the present invention. It is a schematic perspective view which shows the structure of the accommodation rack 4 which concerns on embodiment of this invention. FIG. 4 is an enlarged perspective view showing a configuration of a receiving section 44. It is a schematic diagram for demonstrating the operation | work which fills a container 2 with excavated soil. It is a schematic diagram for demonstrating the operation | work which stacks and stores the accommodation rack 4. It is a mimetic diagram for explaining backfilling work using excavated soil of container 2.

Explanation of reference numerals

2 containers
4 storage racks

Claims (1)

Excavated soil generated at the construction site is composed of a rectangular parallelepiped frame, a mounting portion formed as the bottom of the frame, and receiving portions provided at the four corners of the upper surface of the frame, and disassembled or Each of the containers accommodated in a storage rack that can be folded and stacked is filled, and a plurality of storage racks filled with excavated soil are carried by the receiving portion, and the plurality of storage racks are stacked and stored at a building site. A method for using excavated soil, characterized in that the excavated soil stored by reversing the excavated soil at a backfill place at a construction site is used for backfilling.

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