JP2005127078A - Method of using excavated soil and excavated soil storage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for efficiently and safely storing and using excavated soil generated at a construction site, and an excavated soil storage container suitable for on-site storage of excavated soil.
SOLUTION: Excavated soil generated at a construction site is provided with a bottom cover 3 that can be opened and closed on a stackable frame 2 constituting the outer shape of a container, and a cylindrical sheet 4 is stretched inside the frame 2 The excavated soil storage container 1 is filled, a plurality of excavated soil storage containers 1 filled with the excavated soil are stacked and stored on a building site, and the bottom cover of the container is filled at a backfilling site of the building site The excavated soil stored by opening 3 is used for backfilling.
[Selection] Figure 1

Description

  The present invention relates to a method for efficiently storing and using excavated soil generated at a construction site, and an excavated soil storage container suitable for storing excavated soil on site.

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

  On the other hand, a method for bagging excavated soil and storing it at a construction site has been proposed. When soil is piled up in a mountain shape, there is a limit to the height that can be raised with respect to a storage area of a certain area, and even if you try to increase the height, the soil will flow down to the base and invade other than the storage place. According to the present invention, the bag body is filled with excavated soil so that the excavated soil has a certain shape, and the upper portion of the direct stacking portion in which the excavated soil is piled up at a certain height is flattened. Since the excavated soil stacked on the direct stacking part is maintained as a lump by the bag body, the excavated soil can be stacked higher without flowing down from the direct stacking part. Thereby, the storage amount of excavated soil in a narrow area increases (see Patent Document 1).

Japanese Patent Laid-Open No. 11-247222

  However, since the bag body is flexible like cloth and does not stand by itself when the excavated soil is not filled, it is necessary for the operator to support the opening of the bag body in the excavating soil filling operation. There is. It is also necessary to arrange the bag body in a stable shape after filling the bag body with excavated soil. In general, excavation of the ground is performed using a civil engineering and construction machine such as a backhoe. However, an operation process in which an operator opens a bag and receives excavated soil in the vicinity of the civil engineering and construction machine is inefficient. The risk level is high. In addition, even if the shape of the bag filled with excavated soil is adjusted to some extent, the direct piled portion may only collapse due to the excavated soil, and may collapse due to wind and rain. There is also a risk that the bag body that falls will fall or fall. Therefore, a more efficient and safe method for using and storing excavated soil is desired.

  The present invention has been made to solve such problems, and provides a method for efficiently and safely storing and using excavated soil generated at a construction site, and an excavated soil storage container suitable for on-site storage of excavated soil. The purpose is to provide.

  The method for using excavated soil according to the present invention includes excavating soil generated at a construction site, in which a bottom plate can be opened and closed on a stackable frame constituting the outer shape of the container, and a cylindrical sheet is provided inside the frame. Filled into a stretched container, stored a plurality of containers filled with the excavated soil on a building site, and opened by opening the bottom plate of the container at the backfilling site of the building site. The excavated soil is used for backfilling.

  The excavated soil storage container according to the present invention includes a stackable frame that forms the outer shape of the container, a bottom plate that can be opened and closed at the bottom of the frame, and a cylindrical shape that is stretched inside the frame. And a sheet.

  According to the present invention, the excavated soil storage containers that can be stacked are filled with excavated soil and stacked and stored on the construction site, so that the excavated soil is stored more efficiently and safely with respect to the area of the storage location. This can increase the amount of excavated soil that can be stored. In addition, since the excavated soil storage container has a frame that forms the outer shape of the container, the container is self-supporting and opened without being filled with excavated soil, and the worker supports the container during the filling operation. There is no need to adjust the shape after filling. Thereby, the filling operation can be made efficient and the stacked state is stabilized.

Hereinafter, a method for using excavated soil according to the present invention will be described in detail.
FIG. 1 is a schematic perspective view showing the configuration of the excavated soil storage container 1 according to the embodiment of the present invention, and FIG. 2 is an exploded perspective view of the excavated soil storage container 1. As shown in the figure, the excavated soil storage container 1 includes a stackable frame body 2 that forms the outer shape of the container, a bottom plate 3 that can be opened and closed at the bottom of the frame body 2, and an inner side of the frame body 2. And a cylindrical sheet 4 attached to the sheet.

  The frame 2 is assembled with the steel material 20 having an L-shaped cross section so as to constitute each side of the rectangular parallelepiped, the combined portion of each steel material 20 is fixed by welding, and a wire mesh 21 is stretched on the portion that becomes the side surface of the rectangular parallelepiped. This is a framework that forms the outer shape of the excavated soil storage container 1. The size of the frame 2 is set in consideration of the capacity of the excavated soil to be filled and workability. For example, each frame 2 is a cube having a side of about 1 meter. The steel material 20 is an aggregate of the frame body 2 and supports the weight of the filled excavated soil while allowing the frame body 2 to stand on its own. Further, the frame body 2 made of the steel material 20 needs to be strong enough to support another excavated soil storage container 1 that is filled with the excavated soil and stacked. You may make it raise intensity | strength. In the present embodiment, the steel material 20 having an L-shaped cross section is used, but it is needless to say that other members such as a steel pipe can be used as the aggregate of the frame 2. Moreover, if the steel members 20 of the frame 2 are not fixed by welding, but can be assembled at a construction site using a fixing tool such as a bolt, and can be disassembled or folded as appropriate during transportation, It is preferable because the transport of the storage container becomes efficient and the transport cost can be suppressed.

  The wire mesh 21 stretched on the frame 2 is for preventing the sheet 4 filled with excavated soil from bulging sideways out of the frame 2 and prevents the filled excavated soil from flowing out. Since it is not a thing, what is necessary is just to select suitably the magnitude | size etc. of the mesh | network of the metal mesh 21. FIG. Of course, a steel plate may be provided in place of the wire mesh 21, but considering the weight reduction of the frame body 2, it is preferable to provide a wire mesh 21 or a streak. Further, when the frame 2 is small, the earth pressure by the filled excavated soil is also small, so that the wire mesh 21 and the like may be omitted.

  The upper surface of the frame body 2 remains open so that the upper end portion 4t of the sheet 4 is opened, and receiving portions for stably stacking another frame body 2 at the four corners of the upper surface of the frame body 2. 22 are provided. FIG. 3 is an enlarged perspective view of the receiving portion 22. As shown in the figure, the receiving portion 22 includes a base portion 220 for supporting the bottom surface of another frame body 2 and corners on the side surface of the frame body 2. And a restriction portion 221 that is bent along the portion and is erected upward from the base portion 220. At the corner of the upper surface of the frame body 2, the upper surface of the base portion 220 is horizontal, and the restriction portion 221 is formed of the frame body 2. It is being fixed to the steel material 20 so that it may become an outer side. Accordingly, when another frame 2 is stacked on the frame 2, the other frame 2 can be horizontally supported by the base 220, and the side surfaces of the upper and lower frames 2 can be supported by the restriction portion 221. The other frame body 2 is positioned so as to be flush with each other, and the stacked frame bodies 2 are prevented from moving in the horizontal direction. Therefore, it is possible to stack the frames 2 in a stable state.

  As shown in FIG. 2, two bottom plates 3 are pivotally attached to the steel material 20 by hinges (not shown) at the bottom of the frame 2 so as to be opened and closed downward. The bottom plate 3 has sufficient strength to support the weight of the filled excavated soil, and, like the steel material 20 and the metal mesh 21, the metal mesh is attached to a frame constructed by assembling the steel material 30 having an L-shaped cross section. 31 is pasted. Similar to the frame 2, the use of the wire mesh 31 is preferable because the weight can be reduced. In this embodiment, since the space for opening the bottom plate 3 is small, the bottom portion of the frame body 2 is divided into two pieces, and the two bottom plates 3 are arranged in double openings. May be disposed as a single bottom plate.

  Each bottom plate 3 can be locked from the side of the frame 2 with the bottom of the frame 2 closed. As the lock mechanism, a well-known mechanism can be adopted. For example, as shown in FIG. 4, a so-called hook-shaped lock mechanism can be used. In detail, in the vicinity of the open end of the bottom plate 3 of the steel material 20 constituting the bottom portion of the frame body 2, an insertion hole 33 that allows the lock pin 32 to be inserted and removed from the side in parallel with the rotation axis of the bottom plate 3. Similarly, an insertion hole 34 is formed near the open end of the steel material 30 of the bottom plate 3 so as to be coaxial with the insertion hole 33 in a state where the bottom plate 3 is closed. As shown in the figure, the bottom plate 3 is locked in the closed state by inserting the lock pin 32 so as to continuously penetrate the insertion holes 33 and 34 with the bottom plate 3 closed. In order to release the lock, the lock pin 32 may be removed. Although only one of the bottom plates 3 is shown in the figure, by providing such a locking mechanism on both sides of each bottom plate 3, each bottom plate 3 is locked with the bottom of the frame 2 closed.

  As shown in FIG. 2, the cylindrical sheet 4 has an outer periphery that is substantially the same diameter as the inner periphery of the frame body 2, and a vertical length that is an upper end portion 4 t and a lower end portion on the upper and lower sides of the frame body 2. 4b is long enough to be folded so as to close the opening. The sheet 4 is for preventing the excavated soil filled in the excavated soil storage container 1 from flowing out of the frame body 2, as long as the sheet 4 has a strength enough to withstand earth pressure. It can be formed using a cloth, a resin sheet, or the like. Moreover, if it has waterproofness, since it does not bleed into excavated soil at the time of rain, it is suitable. The sheet 4 is fixed to the steel material 20 or the wire net 21 of the frame 2 so that the upper and lower ends 4t and 4b protrude from the upper and lower sides of the frame 2 with the vertical direction as an opening. The fixing to the steel material 20 is a well-known method. For example, a plurality of hooks are provided at appropriate positions on the outer periphery of the sheet 4 and locked to the wire mesh 21, or a hole through which the sheet fixing rope is passed is provided in the sheet 4. The fixing rope inserted through the hole is fixed by being tied to the steel material 20 or the wire mesh 21.

Hereinafter, a method for using excavated soil using the excavated soil storage container 1 will be described.
In the operation of filling the excavated soil storage container 1 with the excavated soil generated by the foundation work, the excavated soil storage container 1 is placed near the excavation site with the bottom plate 3 closed and locked as shown in FIG. Keep it. The upper end portion 4t of the cylindrical sheet 4 is folded outward from the upper end of the frame body 2, so that the sheet 4 is maintained in an open state by the frame body 2 without being supported by the operator. Although not shown in the drawing, since the lower end 4b of the seat 4 is supported by the bottom plate 3, if it is appropriately folded so that the opening of the lower end 4b is closed above the bottom plate 3, excavation is possible. The soil never flows out. Next, the ground is excavated using a civil engineering construction machine such as a backhoe 5, and the excavated soil is filled into the tubular sheet 4 from above the excavated soil storage container 1. Since the excavated soil storage container 1 is then stacked and stored, the amount of excavated soil to be filled is set such that the excavated soil does not rise from the upper surface of the frame 2. After the excavating soil is filled in the sheet 4, the upper end portion 4t of the tubular sheet 4 that has been folded back is returned and folded appropriately so that the opening of the upper end portion 4t is closed. At this time, the upper end 4t may be tightened with a rope or the like in order to prevent rainwater from entering. In general, since a larger amount of excavated soil is generated in the foundation work, the excavated soil is filled in the plural excavated soil storage containers 1 by repeating this operation.

  In the operation of stacking and storing the excavated soil storage containers 1 filled with excavated soil at the construction site, as shown in FIG. 6, a plurality of excavated soil storage containers 1 filled with the excavated soil by the filling operation are uniced. They are moved and arranged in a storage space at a construction site by a lifting conveyor such as a car 6 or a crane car (not shown). The excavated soil storage container 1 is maintained in the shape of a rectangular parallelepiped against the earth pressure by the frame body 2, and the excavated soil does not flow out to the bottom like a pile, so it is arranged near the boundary of the site or near the excavation site. However, the excavated soil does not protrude or flow out from the excavated soil storage container 1 to the adjacent land or excavation site. Therefore, the storage location can be arbitrarily selected, and for example, it may be a narrow space near the boundary of the site.

  After arranging a plurality of excavated soil storage containers 1 in the storage space of the building site, further excavated soil storage containers 1 are stacked on the excavated soil storage containers 1 as shown in FIG. As described above, the excavated soil storage container 1 is maintained in a rectangular parallelepiped shape by the frame 2, and the frame 2 has sufficient strength to support another excavated soil storage container 1 filled with the excavated soil. Since it has, it can be stacked in a stable state. In addition, receiving portions 22 are provided at the four corners of the upper end of the frame body 2. The receiving portions 22 carry the frame body 2 of the excavated soil storage container 1 to be stacked in a horizontal state, and each of the upper and lower frames. Since the side surfaces of the body 2 are positioned so as to be flush with each other, it is easy to align and stack the excavated soil storage containers 1 and prevent displacement of the stacked excavated soil storage containers 1. The Therefore, the excavated soil storage containers 1 can be stacked in a narrow storage space in an efficient and stable state. The piled excavated soil storage container 1 is left until the backfilling operation is performed, but the excavated soil storage container 1 is safe because it is stacked in a stable state, and the excavated soil is cylindrical. Therefore, the excavated soil does not contain water and the mud excavated soil does not flow out due to rain.

  In the backfilling operation using the excavated soil stored in the excavated soil storage container 1, as shown in FIG. 7, the excavated soil storage containers 1 stacked as described above are transferred to a suspended transfer machine such as a UNIC vehicle 6 or the like. Move to the place where you want to backfill. The excavated soil storage container 1 is once lowered to a place to be backfilled, and the bottom plate 3 locked in the closed state is unlocked to be freely opened and closed. When the excavated soil storage container 1 is lifted again, as shown in the figure, the bottom plate 3 is opened by the dead weight of the excavated soil, and the lower end 4b of the tubular sheet 4 in a folded state is expanded to open the opening, The excavated soil falls from the opening at the lower end 4b to the backfill location. This is sequentially repeated to perform backfilling. Thus, by providing the bottom plate 3 that can be freely opened and closed at the bottom of the frame body 2, the excavated soil storage container 1 can be returned to the backfilling place without reversing the excavated soil storage container 1, so that work is easy. . Note that the bottom plate 3 may be unlocked from the side while the excavated soil storage container 1 is lifted above the backfilling place without being lowered to the backfilling place. In this way, after the backfilling operation is completed, surplus excavated soil is disposed as residual soil.

  The method for using excavated soil according to the present invention can be used in excavation of the ground during foundation work or the like, and then backfilling the soil in the excavated place.

It is a schematic perspective view which shows the structure of the excavated soil storage container 1 which concerns on embodiment of this invention. It is a disassembled perspective view of the excavated soil storage container. 3 is an enlarged perspective view showing a configuration of a receiving portion 22. FIG. It is sectional drawing which shows an example of the locking mechanism which locks in the state which closed the baseplate. It is a schematic diagram for demonstrating the operation | work which fills excavated soil to the excavated soil storage container. It is a schematic diagram for demonstrating the operation | work which piles up and stores the excavated soil storage container. It is a schematic diagram for demonstrating the backfilling operation | work using the excavated soil of the excavated soil storage container 1. FIG.

Explanation of symbols

1 Excavated soil storage container 2 Frame 3 Bottom plate 4 Cylindrical sheet

Claims (2)

  The excavated soil generated at the construction site is filled in a container in which a bottom cover is provided to be openable and closable on a stackable frame constituting the outer shape of the container, and a cylindrical sheet is stretched inside the frame, A plurality of containers filled with the excavated soil are stacked and stored on a building site, and the excavated soil stored by opening the bottom lid of the container at the backfilling site of the building site is used for backfilling. A method of using excavated soil characterized by the above.   Excavated soil comprising a stackable frame constituting the outer shape of the container, a bottom lid that can be opened and closed at the bottom of the frame, and a cylindrical sheet stretched inside the frame Storage container.

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