JP3926345B2 - Excavated soil storage container - Google Patents

Description

The present invention relates to efficiently excavated soil storage container that is suitable for the site to store the excavated soil generated by the construction 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 this, the excavated soil is formed into a lump of constant shape by filling the excavated soil into the bag body, and the upper portion of the direct pile portion where the excavated soil is piled up is flattened to pile up the bag body. Since the excavated soil on the stack is maintained in a lump by the bag, it does not flow down. Thereby, excavated soil can be piled up high and the storage amount of excavated soil can be increased (refer patent document 1).

  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, more efficient and safe storage of excavated soil is desired.

  On the other hand, the inventor has invented a method of filling excavated soil into a stackable excavated soil storage container and stacking and storing it on a construction site. FIG. 15 is a schematic perspective view showing the configuration of the excavated soil storage container 90 used in the storage method. As shown in the figure, the excavated soil storage container 90 configures the outer shape of the container and is filled with the excavated soil. A frame body 91 that can be stacked while supporting other excavated soil storage containers, a bottom plate 92 that can be opened and closed at the bottom of the frame body 91, and a cylindrical sheet that is stuck inside the frame body 91 93. According to the excavated soil storage container 90, the cylindrical sheet 93 is maintained in the open state by the rectangular parallelepiped frame body 91, so that it is not necessary for the operator to support the container during the filling operation, and the shape after filling There is an advantage that it is not necessary to arrange. Further, since the frame body 91 supports another excavated soil storage container (not shown) filled with excavated soil, the excavated soil storage containers 90 can be stably stacked, and the area of the storage location can be increased. On the other hand, there is an advantage that the excavated soil can be stored efficiently and safely (see Patent Document 2).

Japanese Patent Laid-Open No. 11-247222 Japanese Patent Application No. 2003-365591

  The excavated soil storage container 90 is used by being carried into a construction site, and the frame body 91 is manufactured by fixing a steel material by welding or bolting at a factory in consideration of rigidity, ease of field work, and the like. However, in order to reduce the manufacturing cost and the carrying-in cost of the frame body 91, it is desirable to reduce the number of frame bodies 91 that are carried into the construction site as much as possible. On the other hand, the cylindrical sheet 93 is manufactured from a synthetic resin sheet, a woven fabric, or the like, and is foldable and lightweight. Therefore, even if a sufficient number is carried into the construction site, the cost is not increased significantly. Therefore, it is convenient if the frame body 91 and the sheet 93 can be carried separately and used in a simple combination at the construction site. Furthermore, when the excavated soil storage container 90 is filled with excavated soil, the weight becomes several hundred kg. Therefore, a heavy machine such as a crane is used for loading, unloading, and moving to the backfilling site. It is desirable that the hanging work is easy.

  The present invention has been made in view of these points, and is an excavated soil storage container that can efficiently and safely store excavated soil generated at a construction site, and can suppress manufacturing costs and carry-in costs as much as possible. It is another object of the present invention to provide means capable of easily performing field work such as combination and suspension.

The excavated soil storage container according to the present invention is a rectangular parallelepiped skeleton that forms an outer shape and can be stacked while supporting other excavated soil storage containers filled with excavated soil, and is opened and closed at the bottom of the frame A bottom cover that can be provided; a support member that protrudes upward from the four corners of the upper portion of the frame; and a support member that protrudes downward from the four corners of the bottom of the frame to support the support in a stacked state. A receiving material that forms a regulating surface on the side of the material, and a cylindrical sheet that is stretched on the inside of the frame. The L-shaped bent portions of the vertical members and the horizontal members are assembled so that the sides of the rectangular parallelepiped are directed to the outside, and the receiving member is attached to the bottom of the frame body. Projecting from the frame and integrally formed with the frame, and outside the support material in a stacked state In two orthogonal directions at an interval from each said support member so as to form the regulating surface, it is characterized in that constructed at the lower end of the longitudinal member.

  Further, the present invention is characterized in that a hanging annular member is provided above the frame so as to be lower than the height of the support member.

  Further, according to the present invention, the cylindrical sheet is provided with a hanging rope in a horizontal direction at a position opposite to the outer peripheral surface, and the hanging rope is hung on the frame body or the support material, respectively, inside the frame body. It is characterized by being stretched.

  According to the present invention, each receiving material of the upper excavated soil storage container frame receives each support material of the lower excavated soil storage container frame so that the position does not shift in the horizontal direction. The state where the excavated soil storage containers filled with the soil are stacked is stable, and the excavated soil can be stored efficiently and safely with respect to the area of the storage location. As for the stacking of the excavated soil storage container stacked by fitting the receiving material and the support material, the upper excavated soil storage container is stacked directly above the lower excavated soil storage container, and two excavated lower excavations It is possible to adopt a mode in which the soil storage containers are arranged apart from each other by a predetermined interval, and the upper excavation soil storage containers are stacked so as to straddle the two excavation soil storage containers. In this latter stacking mode, since the excavated soil storage bag without the frame can be stored in the space between the two excavated soil storage containers on the lower side, the frame that is carried into the construction site with respect to the amount of excavated soil stored While reducing as much as possible, it is possible to cope with the shortage of the frame, and to suppress the manufacturing cost and the carrying-in cost. In addition, the receiving member can be realized with a simple configuration by forming the vertical member of the frame body from the bottom portion so as to be integrated with the frame body.

  Further, according to the present invention, an annular member for suspension is provided at an upper portion of the frame so as to be lower than the height of the support member, and the suspension member is suspended in a space generated when stacking excavated soil storage containers. Since the annular member is arranged, the suspension work when using a heavy machine such as a crane can be facilitated without generating an extra space during stacking.

  Further, according to the present invention, the tubular sheet is provided with a hanging rope in a horizontal direction at a position opposite to the outer peripheral surface, and each hanging rope is hung on the frame body or the support material. Since it is stretched on the inside, it is easy to combine with the frame at the construction site, the frame and the cylindrical sheet can be carried separately, and the carrying-in cost can be suppressed. .

Hereinafter, the excavated soil storage container according to the present invention will be described in detail.
As shown in FIGS. 1 and 2, the excavated soil storage container 1 includes a frame body 2 that is a framework constituting the outer shape, a bottom lid 3 that can be opened and closed at the bottom of the frame body 2, and a frame body 2. Support member 4 projecting upward from the four corners of the upper part of the frame, receiving member 5 projecting downward from the four corners of the bottom of the frame body 2, and a cylindrical shape stretched inside the frame body 2 A sheet 6 is provided.

  As shown in FIG. 2, the frame body 2 is made of a steel material having an L-shaped cross section as a longitudinal member 20 and a transverse member 21, and the L-shaped bent portions of the longitudinal members 20 and the transverse member 21 face outward and each side of the rectangular solid Are assembled so that each combination portion of the longitudinal member 20 and the transverse member 21 is fixed by welding, and is a framework constituting 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 vertical members 20 and the cross members 21 are aggregates of the frame body 2, which support the weight of excavated soil filled with the frame body 2 while being self-supporting. Further, the frame body 2 composed of the vertical members 20 and the cross members 21 needs to be strong enough to support another excavated soil storage container 1 that is filled with excavated soil and stacked, and therefore, a streak or the like is provided. The strength of the frame 2 may be increased. In addition, in this Embodiment, although the cross-section L-shaped steel materials are used as the vertical member 20 and the horizontal member 21, for example, other members, such as a steel pipe, can be used as the aggregate of the frame 2, It goes without saying that the welding fixing of the cross member 21 can be changed to a fixing tool such as a bolt.

  A bottom cover 3 is provided at the bottom of the frame 2 so as to close the opening of the bottom of the frame 2. The bottom lid 3 has sufficient strength to support the weight of the excavated soil filled in the tubular sheet 6. For example, an L-shaped steel material is combined in a rectangular shape and a steel plate is fixed thereon. Consists of. As shown in FIG. 3, support shafts 30 project from both sides of one end side of the bottom cover 3, and the support shafts 30 are pivoted to the bearings 22 of the cross member 21 at the bottom of the frame body 2. It can be opened and closed. Further, the edge on the other end side of the bottom cover 3 can be locked from the side of the frame 2 with the bottom of the frame 2 closed. Specifically, as shown in FIGS. 3 and 4, a support member 31 made of a steel plate having a predetermined shape is formed at the center of an operation handle 32 in which a support shaft 32a and a handle 32b are formed by bending the steel material into a substantially U-shape. The support shaft 32a is inserted into a shaft hole (not shown) on the bottom surface of the cross member 21 of the frame body 2, and the support member 31 together with the operation handle 32 is horizontally oriented around the support shaft 32a. It can be turned. The cross member 21 is provided with an auxiliary member 33 in which a slit 33a into which the support member 31 can be inserted and removed is formed near the center of the L-shaped steel material. As shown in FIG. 4, the state in which the operation handle 32 is brought close to the frame body 2 is the locked state, and the support member 31 is inserted through the slit 33 a of the auxiliary member 33 and carries the edge of the bottom lid 3. When the excavated soil storage container 1 is used, the bottom lid 3 bears the sheet 6 filled with excavated soil, and the load is also supported by the cross member 21 of the frame 2 via the support material 31 and the auxiliary material 33. It has become. Thereby, the bottom cover 3 is held in a state where the bottom of the frame body 2 is closed. On the other hand, when the operation handle 32 is pulled to the front side and rotated, as shown in the figure, the support member 31 rotates together with the operation handle 32 about the support shaft 32a, and the support member 31 is a slit of the auxiliary material 33. Detach from the edge of the bottom lid 3 so as to come out of 33a. Thereby, the bottom lid 33 can be opened and closed with the support shaft 30 as an axis.

  As shown in FIGS. 3 and 4, the cross member 21 of the frame body 2 provided with the operation handle 32 has a stopper 34 formed by bending a steel material in an L-shape, and a shaft hole on the side surface of the cross member 21. It is inserted into (not shown) and is rotatable. As shown in FIG. 4, the stopper 34 is locked to the closed operation handle 32 to make the operation handle 32 unrotatable. As a result, the operation handle 32 is prevented from rotating unexpectedly during the operation and the bottom lid 3 can be opened and closed.

  At the upper four corners of the frame body 2, support members 4 for stacking other frame bodies 2 are provided. As shown in FIGS. 2 and 5, the support member 22 is a steel pipe having a predetermined length, and is fixed to the upper corner of the frame body 2 by welding, and the upper surface thereof is substantially horizontal. Each support material 4 abuts the four corners of the bottom of the frame 2 of the other excavated soil storage container 1 to be stacked, so that another excavation is performed on the one excavated soil storage container 1 with a certain interval. The soil storage containers 1 are stacked.

  On the other hand, as shown in FIG. 6, the vertical members 20 of the frame 2 protrude from the four corners of the bottom of the frame 2, and the receiving member 5 is provided integrally with the frame 2. The receiving material 5 regulates the horizontal position of each support material 4 in a state of being in contact with the frame 2 of another excavated soil storage container 1. As shown in FIG. 6, in a state where the excavated soil storage containers 1 are stacked, each support material 4 is in contact with the four corners of the bottom of the upper frame body 2, and each receiving material 5 is separated from the frame body 2. The protruding dimension is smaller than the protruding dimension of each support member 4, and the receiving member 5 is not in contact with the lower frame 2. In this state, as shown in FIG. 7, the inner surface of the receiving member 5 formed by the lower end of the vertical member 20 disposed with the bent portion facing outwardly forms the regulating surface 50 on the side of each support member 4. Forming. In FIGS. 6 and 7, the support material 31, the sheet 6, and the like are omitted for convenience of explanation. Since the regulation surface 50 is formed in two directions orthogonal to the outside of the support material 4 along the side surface of the frame body 2, the regulation surface 50 allows each support material 4 of the lower excavated soil storage container 1 to be formed. The position is restricted in the horizontal direction. Accordingly, the stacked excavated soil storage containers 1 are also stacked in a stable state without being displaced in the horizontal direction. In the present embodiment, the receiving material 5 is integrated with the L-shaped vertical member 20 of the frame 2 to simplify the configuration of the excavated soil storage container 1, but the L-shaped steel material is used as the support material. It is good also as a round steel pipe and a square steel pipe which can be externally fitted to 4. Moreover, it can also provide in the four corners of the bottom part of the frame 2 as a member different from the vertical member 20 of the frame 2. In addition to the cylindrical member, the support member 4 can also be a square member or the like. However, considering the ease of stacking work and the stacking mode, a non-directional member such as a columnar member is suitable. is there.

  Further, as shown in FIG. 2, eyebolts (annular members for suspension) 7 are provided in the vicinity of the upper four corners of the frame 2. Specifically, as shown in FIG. 5, a base plate 70 is welded and fixed to the cross member 21 in the vicinity of the four corners of the frame body 2, an eye bolt 7 is inserted into the through hole 71 of the base plate 70, and a nut 72 is screwed together. And fixed. As shown in FIG. 6, the eyebolt 7 is lower than the height of the support material 4, and the eyebolt 7 does not come into contact with the upper frame 2 even when the excavated soil storage containers 1 are stacked. . The excavated soil storage container 1 can be easily suspended by hooking the eyebolt 7 to the crane hook, and the excavated soil storage container 1 can be easily moved and stacked. The space above the frame 2 is a space that is generated when the support member 4 abuts on the upper frame 2 during stacking. For example, if the eyebolt 7 protrudes to the side of the frame 2, a space is created between the excavated soil storage containers 1 by the protruding width when stacking, but the space above the frame 2 is used. Thereby, the eyebolt 7 can be arrange | positioned, without producing an extra space at the time of stacking.

  As shown in FIG. 8, the cylindrical sheet 6 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 6 t and a lower end portion on the upper and lower sides of the frame body 2. 6b is long enough to be folded so as to close the opening. The sheet 6 is filled with excavated soil, and can be formed using a woven cloth, a synthetic resin sheet, or the like as long as the sheet 6 has a strength sufficient to withstand earth pressure. Moreover, if it has waterproofness, since it does not bleed into excavated soil at the time of rain, it is suitable. At the opposing position on the outer peripheral surface of the sheet 6, a hanging rope 60 is provided in the horizontal direction. The hanging rope 60 is for fixing the sheet 6 to the frame body 2, and both ends of the hanging rope 60 slightly longer than the cross member 21 of the frame body 2 are fixed to the sheet 6 by sewing or the like. As shown in FIG. 1, the upper end 6 t and the lower end 6 b of the hanging rope 60 are opened at the upper corners of the frame body 2 and between the two support members 4. The sheet 6 is stretched inside the frame 2 so as to protrude from the upper and lower sides of the body 2.

  Although the sheet 6 used in the excavated soil storage container 1 is not necessarily required, a belt or a rope for tightening the upper and lower openings is provided in the vicinity of the upper end 6t and the lower end 6b of the sheet 6 to excavate the sheet 6 alone. If the sheet 6 can also be used as a soil storage bag, it is convenient if the sheet 6 can be used as a soil excavation soil storage bag when the amount of excavated soil to be stored is larger than planned. Further, since the sheet 6 can be folded and is light, even if it is carried over to the construction site in excess of the frame body 2, the cost is not increased. The frame 2 and the sheet 6 can be carried separately and combined at the construction site.

Hereinafter, a method for storing excavated soil using the excavated soil storage container 1 will be described.
The excavated soil storage container 1 is carried into the construction site in accordance with the planned excavated soil storage amount. The parts made of steel materials other than the sheet 6, such as the frame 2, the bottom cover 3, the support material 4, and the receiving material 5, are assembled and fixed in advance at a factory or the like. Separately from 6, the sheet 6 is carried in slightly more than the number of the frame bodies 2 and the like. Of course, a predetermined number of excavated soil storage containers 1 combined with the frame 2 or the like and the sheets 6 and the extra sheets 6 may be carried in beforehand. When the frame 2 or the like and the sheet 6 are carried separately, the sheet 6 is stretched on the inside of the frame 2 at the construction site. As described above, the sheet 6 spans the hanging rope 60. Thus, the frame 2 can be easily stretched.

  In the work of performing foundation work and filling the excavated soil storage container 1 with the generated excavated soil, as shown in FIG. 9, the excavated soil storage container 1 is placed in the vicinity of the excavation site with the bottom lid 3 closed and locked in advance. Place it. The upper end portion 6t of the cylindrical sheet 6 is folded back from the upper part of the frame body 2 so that the sheet 6 is maintained in an open state by the frame body 2 without being supported by the operator. Although not shown in the drawing, the lower end portion 6b of the sheet 6 is supported by the bottom lid 3, so that it should be appropriately folded so that the opening of the lower end portion 6b is closed above the bottom lid 3. The excavated soil will not flow out. Further, the bottom cover 3 is locked in a closed state by the support material 31 and the operation handle 32 is hung by a stopper 34 to stop the rotation. Next, the ground is excavated by using a heavy machine such as a backhoe 100, and the excavated soil is filled into the cylindrical sheet 6 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 excavated soil is filled in the sheet 6, the upper end portion 6t of the tubular sheet 6 that has been turned back is returned and folded appropriately so that the opening of the upper end portion 6t is closed. At this time, the upper end 6t may be tightened with a belt or the like in order to prevent rainwater from entering. This work is repeated to fill a plurality of excavated soil storage containers 1 with the planned excavated soil.

  In the operation of stacking and storing excavated soil storage containers 1 filled with excavated soil on a building site, as shown in FIG. 10, a plurality of excavated soil storage containers 1 filled with excavated soil by the filling operation are uniced. They are moved and arranged in a storage space at a construction site by heavy machinery such as a car 101 or a crane car (not shown). Since the eyebolt 7 is provided in the upper part of the excavated soil storage container 1, it is easy to hang it by hooking the hook of the UNIC vehicle 101 or the like. In addition, the excavated soil storage container 1 is maintained in the shape of a rectangular parallelepiped against the earth pressure by the frame 2, and the excavated soil does not flow out to the foot like a pile, so it is near the boundary of the site and near the excavation site Even if they are arranged in line, the excavated soil does not protrude from the excavated soil storage container 1 to the adjacent land or excavation site or flow out. 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 container 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. Further, as shown in FIGS. 6 and 7, the support member 4 on the lower frame 2 supports the frame 2 of the upper excavated soil storage container 1 in a horizontal state, and the upper frame. Since the horizontal position is regulated by the receiving member 5 at the bottom of the body 2, it is easy to align and stack the excavated soil storage containers 1, and the misalignment of the stacked excavated soil storage containers 1. Is prevented. Therefore, the excavated soil storage containers 1 can be stacked in a narrow storage space efficiently and stably. The excavated soil storage container 1 that has finished stacking is left unattended until backfilling 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. The weight of the excavated soil storage container 1 filled with the excavated soil is several hundred kg, but the weight of the upper excavated soil storage container 1 stacked up is stored in the lower excavated soil via the support material 4. The frame 2 of the container 1 supports the excavated soil filled in the sheet 6 in the frame 2 so that the weight of the upper excavated soil storage container 1 is not loaded. Therefore, the sheet 6 does not need to have a strength against the compressive load due to the weight of the upper excavated soil storage container 1, and only needs to have a strength against the excavated soil filled therein. Further, the excavated soil is not compressed and hardened in the sheet 6.

  As shown in FIG. 11, the piles of the excavated soil storage containers 1 are arranged by arranging a predetermined number of the first excavated soil storage containers 1 at the storage location and placing the second excavated soil storage container 1 thereon. For example, as shown in FIG. 12, the first-stage excavated soil storage container 1 is disposed at a predetermined interval so as to straddle the two first-stage excavated soil storage containers 1. Thus, the second-stage excavated soil storage container 1 may be stacked. In this stacking mode, as shown in FIG. 13, the two support members 4 of the two excavated soil storage containers 1 in the first stage are brought into contact with the bottom of the frame 2 of the excavated soil storage container 1 in the second stage. Since these support members 4 are in contact with each other and their horizontal positions are restricted by the receiving members 5 at the bottom of the second-stage frame body 2, even in such a stacking mode, the stacked excavated soil storage containers 1 are stacked. Can be stably stacked. Thereby, the excavated soil storage bag 8 without a frame can be stored in the space formed below the excavated soil storage container 1 in the second stage. As described above, the excavated soil storage container 1 is carried into the construction site in accordance with the planned amount of excavated soil, but is taken into the construction site in consideration of the manufacturing cost and the carrying cost of the frame 2 and the like. It is preferable that the number of the frame bodies 2 is as small as possible. On the other hand, it is assumed that the excavated soil to be stored is larger than the planned amount. In such a case, the excavated soil storage bag 1 is filled with the excavated soil as the excavated soil storage bag 8 using the extra sheet 6 or the like, and the excavated soil storage container 1 uses the excavated soil storage bag 8 as the stacking mode shown in FIG. Store in the lower space of the second stage excavated soil storage container 1. As a result, the frame body 2 of the surrounding excavated soil storage container 1 exerts the same action as the frame body 2 on the excavated soil storage bag 8, and the compressive load is not applied to the excavated storage bag 8. The excavated soil can be stored in line with the stacked state, and it is possible to cope with the shortage of the unscheduled frame 2 or the like.

  In the backfilling operation using the excavated soil stored in the excavated soil storage container 1, as shown in FIG. 14, the excavated soil storage container 1 stacked as described above is backfilled with a heavy machine such as the UNIC vehicle 101. Move to a location. The excavated soil storage container 1 is lowered to near the ground of the backfill site, the stopper 34 is removed, and then the operation handle 32 is pulled forward to rotate the support material 31. Thereby, the lock is released and the bottom lid 3 can be freely opened and closed, and the bottom lid 3 is naturally pivoted downward by the weight of the excavated soil in the seat 6. Since the lower end 6b of the sheet 6 is simply folded, it is naturally opened due to the weight of the excavated soil, and the excavated soil in the sheet 6 falls from the lower opening to the backfilling location. This is sequentially repeated to perform backfilling. Thus, by providing the bottom cover 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 inverting the excavated soil storage container 1, so that the work is easy. is there. Further, as described above, the weight of the upper excavated soil storage container 1 stacked is not applied to the sheet 6 of the lower excavated soil storage container 1, and the excavated soil is compressed and solidified in the sheet 6. Therefore, the excavated soil can be discharged well when the bottom cover 3 is opened. In the work so far, since the rotation of the operation handle 32 is stopped by the stopper 34, the operation handle 32 is rotated and unlocked during the work, so that the bottom cover 3 does not open and the safety is prevented. Work such as filling and stacking can be performed.

  In addition, the usage method and stacking aspect of the excavation soil storage container 1 shown by this Embodiment are examples, and it is natural that the excavation soil storage container which concerns on this invention is not limited to these usage methods. Moreover, the lock mechanism etc. of the bottom cover 3 can be arbitrarily changed in the range which does not change the summary of this invention.

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 perspective view which shows the structure of the frame 2, the bottom cover 3, etc. FIG. It is a disassembled perspective view which shows the structure of the frame 2, the bottom cover 3, etc. FIG. It is a bottom view showing composition of support material 31 etc. which lock in the state where bottom lid 3 was closed. It is an expansion perspective view which shows the structure of the support material 4 and the eyebolt 7 vicinity. It is an enlarged partial front view which shows the relationship between the support material 4 and the receiving material 5 when the excavated soil storage container 1 is stacked. It is AA sectional drawing of FIG. 3 is a perspective view illustrating a configuration of a seat 6. FIG. It is a schematic diagram for demonstrating the operation | work which fills excavated soil with the excavated soil storage container 1. FIG. It is a schematic diagram for demonstrating the operation | work which piles up and stores the excavated soil storage container 1. FIG. It is a front view which shows the state which piled up the excavated soil storage container 1. FIG. It is a front view which shows the aspect which piles up the 2nd excavated soil storage container 1 straddling the 2nd excavated soil storage container 1. FIG. It is an enlarged partial front view which shows the relationship between the support material 4 and the receiving material 5 at the time of stacking the 2nd-stage excavated soil storage container 1 straddling the 2nd-stage excavated soil storage container 1. FIG. It is a schematic diagram for demonstrating the backfilling operation | work using the excavated soil of the excavated soil storage container 1. FIG. It is a schematic perspective view which shows the structure of the conventional excavated soil storage container 90. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Excavated soil storage container 2 Frame 3 Bottom cover 4 Support material 5 Receiving material 6 Sheet 7 Eye bolt (annular member for suspension)
20 Longitudinal material 50 Restricting surface 60 Hanging rope

Claims (3)

A frame that is a rectangular parallelepiped skeleton that forms an outer shape and can be stacked while supporting other excavated soil storage containers filled with excavated soil,
A bottom lid that can be opened and closed at the bottom of the frame,
Support members respectively protruding upward from the upper four corners of the frame,
Receiving members projecting downward from the four corners of the bottom of the frame body, and forming a regulating surface on the side of the support member in a stacked state,
A cylindrical sheet stretched inside the frame,
Equipped with,
The frame body is assembled such that the L-shaped cross section of each longitudinal member and each transverse member faces the outside and constitutes each side of the rectangular parallelepiped with the steel material having an L-shaped cross section as a longitudinal member and a transverse member. Yes,
The receiving member is formed integrally with the frame member by causing the vertical member to protrude from the bottom of the frame member, and is spaced from the support member in two directions orthogonal to each other outside the support member in a stacked state. An excavated soil storage container comprising a lower end of the longitudinal member so as to open to form the regulating surface . The excavated soil storage container according to claim 1 , wherein an annular member for suspension is provided on an upper portion of the frame body so as to be lower than a height of the support member . Each of the cylindrical sheets is provided with a hanging rope in a horizontal direction at a position opposed to the outer peripheral surface, and is stretched inside the frame by spanning each hanging rope on the frame or the support material. claim 1 or 2 excavated soil storage container according to, characterized in that there.

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