WO2008029771A1

WO2008029771A1 - Sandbag guide frame and sandbag construction method employing sandbag guide frame

Info

Publication number: WO2008029771A1
Application number: PCT/JP2007/067148
Authority: WO
Inventors: Futoshi Nomoto
Original assignee: Matsuoka, Hajime
Priority date: 2006-09-07
Filing date: 2007-09-03
Publication date: 2008-03-13
Also published as: JP4019100B1; JP2009287165A

Abstract

[PROBLEMS] To provide a sandbag guide frame placed under the bottom of each sandbag and coupling a plurality of sandbags by arranging them. [MEANS FOR SOLVING PROBLEMS] A rectangular sandbag guide frame (10) is formed of a planar rib (11) in order to arrange each sandbag (40) placed thereon. Pins (23a, 23b) of a securing piece (20) are inserted into small holes provided in the planar rib (11) from the outside of the sandbag (40), and then the clicks (33a, 33b) of a connection piece (30) are inserted through the rectangular hole (22) of the securing piece (20) and the coupling hole (13) of the planar rib (11), thus coupling a plurality of sandbag guide frames (10) in a lattice form. Thereafter, each sandbag (40) thus coupled is packed with a material. With such a construction method, the time required for laying sandbags (40) is shortened sharply and economical effect is remarkable.

Description

Specification

Sandbag bag guide frame and sandbag bag construction method using sandbag bag guide frame

Technical field

TECHNICAL FIELD [0001] The present invention relates to a sandbag bag used for ground reinforcement and the like and a sandbag bag construction method using the sandbag bag. In particular, the present invention relates to a sandbag guide frame placed on the bottom of a sandbag bag for packing soil, sand, gravel, glass powder and other granular materials (hereinafter referred to as materials), and a sandbag bag construction method using the sandbag bag guide frame.

Background art

[0002] Sandbag bags filled with materials have been developed in recent years for disaster recovery work, tunnel pile mouth disaster recovery work, steep terrain reinforcement work, waterside embankment work, structure backfilling work, structure foundation work, soft ground Used for countermeasure construction and liquefaction countermeasure construction. Such sandbags include a method of packing materials at the site and transporting them to the construction site, and a method of packing materials one bag at a time at the construction site.

[0003] The former method of bagging at the factory and transporting it to the construction site requires that the sandbag bag packed at the factory be transported hundreds of times on a large truck depending on the type of construction in order to carry it to the site. Yes, there is a disadvantage that the construction cost becomes high due to the high transportation cost. On the other hand, the method of making sandbags by packing them one by one at the construction site has the disadvantage that the bagging takes time and the construction does not proceed slowly.

[0004] The method of bagging at the above factory and carrying it to the construction site is as follows:

1) Since the materials are packaged at the factory, problems such as cost problems, product deterioration, and on-site movement (because of heavy work) occur.

2) Since the sandbag is heavy, it becomes a heavy labor for workers. In addition, the size of the sandbag bag and the quality of the sandbag bag may be slightly different, such as changes in the shape of the sandbag bag due to vibration during transportation, and tearing of the sandbag bag during loading and unloading. Is difficult.

3) When laminating sandbags, pressure must be applied one by one to generate the necessary tension in the sandbags so that adjacent sandbags are in contact with each other. Since the final shape of the sandbag is determined after pressure is applied, according to the conventional method, fine positioning of the sandbag is possible. It is necessary constantly, and it takes a lot of work time to accurately arrange in the grid at the desired position.

The following is a conventional example of a method for bagging one bag at a construction site.

[0005] First conventional example

As a first conventional example of bagging one bag at a construction site, there is, for example, JP-A-58-16215 (Patent Document 1). The sandbag bag disclosed in the first conventional example accommodates a frame with hooks in the sandbag bag so that a certain amount of soil can be charged. FIG. 9 is a view showing a molded sandbag disclosed in Patent Document 1. FIG. 9 (A) is a perspective view showing a frame housed in the sandbag bag. Fig. 9 (B) is a diagram showing how the frame is housed in the sandbag. Fig. 9 (C) is a diagram showing the sandbag bag being completed. The framework 61 disclosed in Fig. 9 (A) is made of metal wires such as reinforcing bars and wire, and plastic. Such a frame 61 is accommodated in a sandbag bag 62 as shown in FIG. 9 (B), and materials are packed in it, thereby obtaining a sandbag bag having a cubic shape as shown in FIG. 9 (C). It is done. In this way, by putting the frame 61 in the sandbag bag 62 and then packing the material, what was previously packed by two people can be packed by one person, reducing labor.

[0006] Further, if the frame 61 is placed in the sandbag 62, the shape is constant, so that there is an advantage that all sandbags have a certain standard. Fig. 9 (D) shows a hook on a part of the frame. In this way, by providing hooks 63 on the frame 61, if the hooks 62 are entangled with each other when the sandbags 62 are stacked, the sandbags 62 will pull each other and prevent further collapse. I can do it.

[0007] Second Conventional Example

Further, as a second conventional example of bagging one bag at a construction site, there is, for example, Japanese Patent Publication No. 47-42301 (Patent Document 2). FIG. 10 is a view showing a sandbag bag having a sandbag bag bottom body according to a second conventional example. The sandbag disclosed in this second conventional example is a rectangular bag having a perimeter that is the same as the waist circumference of the sandbag 71, as shown in FIG. The bottom body 72 is inserted. The bottom body 72 does not cause a chemical change, for example, a material conforming to a plate such as a synthetic resin foam. In addition, the bottom body 72 is fixed to the bottom of the sandbag bag 71 so that the bottom body 72 does not come off the sandbag bag 71 after being inserted into the sandbag bag 71. The cloth on the bottom of the sandbag 71 is bent at both ends with the triangular ear-shaped parts 74 inward at the both ends and fixed to the bottom. Figure 10 (B) shows how sandbags 71 made in this way were stacked with the bottom facing sideways. Therefore, as an effect, it is possible to obtain a shape in which blocks are stacked. Patent Document 1: JP-A-58-16215

Patent Document 2: Shoko 47-42301

Disclosure of the invention

Problems to be solved by the invention

[0008] In the sandbag bag construction method of the first conventional example, the sandbag bag 62 is set up, the frame 61 is put therein, and the material is packed in that state. A plurality of sandbag bags 62 are arranged by carrying the sandbag bags thus produced sideways and transporting them to a place different from the place where the bags were packed. In other words, since it was necessary to transport the sandbag bag to a different location from where it was packed, it had to be transported and the work volume was not reduced. Also, in a sandbag bag with a frame with a hook in it, if the hook enters the sandbag bag and pulls it out from the sandbag bag 62, the hooks are entangled with each other. After all, work cannot be reduced.

[0009] Before describing the shortcomings of the first conventional sandbag method, the basic principle of the sandbag method will be described. When a material (granular material) is put in the sandbag bag and an upper force is applied to it, the filling material packed tightly pushes the sandbag bag from the inside to the outside. The sandbags spread laterally against this force, but pressure is applied between the particles due to the tension of the sandbags, a frictional force acts between the particles, and the particles are displaced. In other words, this frictional force acts as a glue, and it becomes the same state as putting a lump of concrete in a bag, and it brings amazing strength to the sandbag. In this way, in one sandbag bag, when an external force is applied to the sandbag bag from above, a sandbag bag with a large strength whose inside is compressed is obtained. On the other hand, when reinforcing the ground, a number of sandbags are arranged in the horizontal direction and the required number of steps are stacked. The strength in the horizontal direction with multiple sandbags arranged is There is an appropriate gap between the sandbags, and it is necessary to ensure proper contact between the sandbags that are adjacent to each other when external pressure is applied from above with the sandbags arranged side by side. A sandbag in which a plurality of sandbag bags are constructed in an appropriate contact state in the lateral direction in this way The bag increases the integrity and exhibits excellent properties such as load distribution and vibration damping.

[0010] As described above, the strength of one sandbag is generated by applying pressure to the sandbag. In the first conventional example, sandbags of almost the same size can be manufactured. However, as shown in Fig. 9 (A), because there are frame materials at all corners, pressure is applied to the sandbags. When the material is added, the material is not compressed sufficiently and friction between materials (between particles) cannot be obtained. In the first conventional sandbag bag construction method, since there is a hook, it is possible to connect the sandbags. Since the sandbags are individually installed and connected, there is a gap between the connected sandbags. Therefore, it is not possible to accurately arrange a plurality of sandbags in the horizontal direction with a gap for proper contact between sandbags. Therefore, in the first conventional example, it is not possible to construct the sandbags so that the sandbags are in an appropriate contact state. Therefore, the sandbags cannot be integrated, and load distribution and vibration damping are not achieved. Such excellent characteristics cannot be shown.

[0011] In the sandbag method of the second conventional example, the bottom body 72 is inserted into each sandbag bag 71, the fixing band 73 is attached, and the cloth at the bottom of the sandbag bag 71 is attached to both ends. The triangular ears 74 are bent inward and fixed to the bottom. However, there is a drawback that the work for attaching the bottom body 72 to each individual sandbag is required, and the work cannot be reduced. Also, since the base 72 is used on its side, it is difficult to be a force S that is a gauge in a straight line or vertical direction, and a gauge (reference) in a horizontal direction. The sandbags cannot be accurately arranged in a grid pattern because they are placed without any gaps. Furthermore, if the material of the bottom 72 is described as a hard material that is not easily deformed, it will hinder the necessary tension on the sandbag, and sufficient strength cannot be obtained.

[0012] In view of the above-mentioned problems, the present invention places a sandbag bag guide frame on the bottom of each sandbag, and after connecting and aligning a plurality of sandbag guide frames in a grid pattern with connecting pieces, The purpose of the present invention is to provide a sandbag bag guide frame and a sandbag bag construction method using the sandbag bag guide frame that do not require adjustment of the sandbag bag after installation.

Means for solving the problem

[0013] In order to solve the above-mentioned problem, the invention of claim 1 is arranged on the bottom of each sandbag, and each sandbag. In the sandbag guide frame formed in a rectangular shape with plate-like ribs, the plate-like ribs are formed on a rectangular hole formed in a central portion thereof and on the plate-like ribs. And a small hole formed on each outer side in the longitudinal direction of the rectangular hole.

[0014] The invention of claim 2 is characterized in that the sandbag guide frame includes a beam connecting the centers of the corresponding plate-shaped ribs to each other.

[0015] The invention of claim 3 is characterized in that a fixing piece having a pin inserted into the small hole on the plate-like rib is provided.

[0016] The invention of claim 4 includes a connecting piece having a claw that penetrates a rectangular hole formed in the center of the fixed piece and is inserted into the rectangular hole on the plate-like rib. And

[0017] The invention of claim 5 comprises an upper frame and a lower frame formed in a rectangular shape for placing a sandbag bag guide frame placed in the sandbag bag, and the connecting piece is formed at an intermediate portion of the upper frame. And a base frame having a notch for joining together.

[0018] The invention of claim 6 arranges a plurality of sandbag bags with sandbag bag guide frames in them, and inserts a pin of a fixed piece into the small hole of the guide frame from the outside of the sandbag bag, Each guide frame is joined by inserting the claw of the connecting piece into the rectangular hole of the plate-like rib through the rectangular hole inside the fixed piece, and then the material is put into the sandbag, The present invention is characterized in that a plurality of sandbag bags are arranged and arranged in a lattice pattern by pulling a fastening string and tightening an opening of the sandbag bag.

[0019] According to the invention of claim 1, a plate-like shape including a rectangular hole formed in the center thereof and small holes formed on the plate-like ribs on the outer sides in the longitudinal direction of the rectangular hole. Sandbag bag composed of ribs The sandbag bag with the guide frame placed inside can be accurately arranged at a predetermined position on the reference line. In addition, when placing sandbag bags, the sandbag bag contains no materials, so the work can be done in a lightweight state. In addition, since the material can be charged from the top of the bag, it is not necessary to move the bag from the position where the material is charged, and there are no knots on the four sides of the bag, resulting in improved horizontal adhesion and increased strength.

[0020] In addition, a gap is provided between the sandbag bags so that the necessary tension can be obtained in advance between the fixed piece and the connecting piece. Get in Therefore, the work which requires fine adjustment of the sandbag bag can be smoothly advanced. Therefore, the efficiency and accuracy of the work can be ensured, and the cost can be reduced by the work efficiency.

[0021] According to the invention of claim 2, the sandbag bag guide frame can be provided with beams connecting the centers of the corresponding plate-shaped ribs to each other, so that the sandbag bags can be aligned in a grid pattern on a plane. it can.

[0022] According to the invention of claim 3, since the fixing piece having the pin inserted into the small hole on the plate-like rib is provided, the guide frame and the sandbag can be fixed by the fixing piece. . It can also be used as a guide for inserting fixed pieces on site, and the sandbags can be easily connected. Note that this pin may be attached when the guide frames are arranged in the factory or at the site.

[0023] According to the invention of claim 4, since the connecting piece having a claw penetrating the rectangular hole formed in the center of the fixing piece and inserted into the rectangular hole on the plate-like rib is provided, It is possible to secure in advance a gap necessary for contact with an appropriate pressure. In addition, the adjacent guide frames are firmly fixed by this connecting piece, so that the sandbag bags are securely integrated with each other, and the strength of the sandbag bag after arrangement is increased. Position adjustment is not necessary.

[0024] According to the invention of claim 5, in order to place the sandbag bag guide frame placed in the sandbag bag, the upper frame and the lower frame formed in a rectangular shape are connected to the intermediate portion of the upper frame. It has a base frame with a notch for joining the sandbags, so that when placing sandbags on mud etc., the bottom sandbag can be aligned without distortion and placed at the bottom. Since the base frames are also securely connected, the integration of the entire sandbag bag is increased, and even in extremely soft ground such as mud, dirt particles such as sludge infiltrate from the gaps between the sandbags. Since the sandbag is pushed inward by the earth pressure and the tension of the bag is lost, it is possible to prevent the phenomenon, which increases the certainty of strength reinforcement.

[0025] According to the invention of claim 6, a plurality of sandbag bags with sandbag bag guide frames in them are arranged in a line, and the pin of the fixed piece is inserted into the small hole of the guide frame from the outside of the sandbag bag. The guide frame and the sandbag bag are joined by inserting the claw of the connecting piece into the rectangular hole of the plate-like rib through the rectangular hole inside the fixed piece, and then the material is put into the sandbag bag, Multiple sandbags are arranged in a grid by pulling the straps on the sandbag and tightening the opening of the sandbag. Therefore, the sandbag bag with the sandbag bag guide frame inside can be accurately arranged at a predetermined position on the reference line so that the desired strength can be obtained. Since there is no need to adjust the position of the sandbag after arrangement, there is an advantage that the position of the sandbag is not required to move. Form

[0026] First Embodiment

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the overall structure of a sandbag guide frame according to the first embodiment of the present invention.

In FIG. 1, a sandbag bag guide frame 10 functions as a guide for aligning a plurality of sandbag bags placed on the bottom of the sandbag bag. The sandbag guide frame 10 is formed by connecting the corners of the four plate-like ribs 11, and a connecting hole 13 is formed at the center of each plate-like rib 11. Beams 12 are provided in the corresponding central portions of the plate-like ribs 11, and function to maintain the fixed shape of the guide frame when the sandbags are arranged in a lattice pattern. Although the plate-like ribs are self-supporting like polypropylene resin, a material that can be easily deformed by a slight external force can be used. Small holes 14 a and 14 b are formed at the longitudinal ends of the coupling holes 13 on each plate-like rib 11. The coupling hole 13 may be formed in other shapes such as a force ellipse or a circle having a rectangular shape in the drawing. Here, as will be described later, the small hole 14 is a hole for inserting the pin 23 provided in the fixed piece 20, and the shape thereof may be other shapes such as a circle, an ellipse, and a rectangle.

FIG. 2 is a diagram showing a configuration of the fixed piece. FIG. 2 (A) is a perspective view of the fixed piece 20. FIG. 2B is a diagram showing a plan view, a front view, a side view, and a bottom view of the fixed piece 20. The fixed piece 20 is formed of a fixed piece frame 21 having a rectangular hole 22 in the center of the fixed piece frame 21 and pins 23a and 23b on the side surfaces thereof. As will be described later, the pins 23a and 23b have a tapered shape and a thin tip. The fixing piece 20 is joined to the sandbag bag guide frame 10 from the outside of the sandbag bag 40 after the sandbag bag guide frame 10 is placed on the bottom of the sandbag bag 40. The fixing piece 20 has a role of fixing the sandbag bag guide frame 10 and the sandbag bag, and also has a role of facilitating the installation work of the connection piece 30 in the field. To connect the fixed piece 20 to the sandbag guide frame 10, the positions of the small holes 14a, 14b are estimated from the outside of the sandbag 40 (not shown) as shown by the two-dot chain arrows A and B in Fig. 1. And insert the pins 23a and 23b into the small holes 14a and 14b, respectively. FIG. 2 (C) is a diagram showing a state where the fixed piece is coupled to the plate-like rib 11. According to FIG. 2 (C), the pins 23a and 23b are inserted into the small holes 14a and 14b of the plate-like rib 11 from the top of the sandbag 40, respectively. Since the sandbag 40 is configured in a net shape, the pins 23a and 23b can be easily inserted from above the sandbag 40. As will be described later, since the fixing piece 20 is fixed by the connection piece 30, it is not necessary to firmly fit the plate-like rib 11. If it fits lightly enough not to come off, it will be good.

FIG. 3 is a diagram showing the configuration of the connection piece of the present invention. The connection piece 30 is used to connect one sandbag guide frame 10 and the adjacent sandbag guide frame 10. FIG. 3A is a perspective view showing the connection piece 30. In FIG. 3 (A), the connecting piece 30 is composed of the fixing portion 31 and the arms 32a, 32b and claws 33a, 33b and arms 34a, 34b and claws 35a, 35b formed on the J surface. The In order to insert the connecting piece 30 into the sandbag guide frame 10, first, as shown by the two-dot chain arrows C and D in FIG. 1, the claws 33a and 33b of the connecting piece 30 are inserted into the rectangular holes of the fixing piece 20. Further, the claws 33a and 33b are penetrated through the coupling hole 13. The claws 33a and 33b penetrating through the coupling hole 13 jump out to the inner surface of the plate-like rib 11, and the tips of the claws 33a and 33b are joined to the inner surface of the plate-like rib 11 so that they cannot be removed. Securely connected to rib 11. FIG. 3B is a view showing a state where the connection piece 30 is coupled to the plate-like rib 11. In FIG. 3 (B), the connecting piece 30 penetrates the fixed piece 20, and the claw 33a, 33b at the tip protrudes from the coupling hole 13 of the plate-like rib 11, and the claw 33a, 33b force S plate-like. Engaging with the inner surface of the rib 11, the claws 33 a and 33 b cannot be removed from the plate-like rib 11. It should be noted that the claws 35a and 35b are coupled to the other plate-like ribs 11. Here, the coupling is omitted.

[0031] This connecting piece 30 has a role of securing an appropriate gap so that a necessary strength is generated between adjacent sandbags when sandbags are arranged. In addition, the connection piece 30 is usually a fixed-size connection piece. If the gap between sandbags needs to be narrowed or widened depending on the ground conditions, the connection piece 30 is used. Change the width of 30 and adjust the distance between sandbags with force S.

FIG. 4 is a view showing a state in which a plurality of sandbag bag guide frames are joined together. In Fig. 4 (A), a plurality of sandbag bags 40 with sandbag bag guide frames 10 are arranged, and each plate-like container is arranged from the outside of the sandbag bag 40. FIG. 6 is a view showing a state in which fixed pieces 20 are attached to each surface of the hub 11 and the fixed pieces 20 are connected by connecting pieces 30. In FIG. 4 (A), the sandbag 40 is drawn with a one-dot chain line in order to clearly show the coupling relationship of the sandbag guide frame 10. In this way, after the sandbag bag guide frame 10 is arranged in the plurality of sandbag bags 40, the material is sealed in each sandbag bag. There are three cases in which the sandbags 40 have three intervals as shown in Figs. 4 (B), (C), and (D). Fig. 4 (B) shows a case where a sandbag 40 is installed and a gap is created between the sandbags 40 after pressure is applied. In such a situation, the integrity of the sandbags weakens and the strength decreases. . Fig. 4 (C) shows a case where sandbags are too close together, and even if pressure is applied, the sandbags will interfere with each other and sufficient tension cannot be obtained, so the required strength can be obtained. Absent. Therefore, it must be avoided that the sandbags 40 are too close together. Fig. 4 (D) shows a case where sandbags adjacent to each other after installation are in proper contact with each other. In such a state, the sandbag bags 40 are sufficiently tensioned and the sandbags are integrated. The resulting strength is maximized. FIG. 4 (E) is a diagram showing a coupling state in the case of the present application. By connecting the adjacent sandbag bags 40 using the fixing piece 20 and the connecting piece 30, the distance between the sandbag bags 40 is previously set. Can be determined appropriately. Therefore, according to the configuration of the present application, a state similar to that shown in FIG. 4B can be realized, and further, the presence of the connection piece 30 enhances the integration between the sandbags 40.

Figures 5 (A) to 5 (F) show an example in which sandbags 40 formed in a cubic or rectangular parallelepiped form are laid on the ground and stacked in two or three layers. Figures 5 (A) and 5 (B) are examples in which the layers are stacked while being stacked vertically. However, since this method is more advantageous in strength when the sandbags are integrated with each other, except in cases such as when only reducing vibrations or obtaining the required number of steps and responding to the size of the structure to be received. Is not used. Figures 5 (C) and 5 (D) are examples of stacking in a staggered pattern while shifting each stage, and are most often used. Figures 5 (E) and (F) are methods that combine the above (B) and (D), and are often used in building foundations. According to the conventional construction method, it is about 1000 bags / 3 people per day on flat ground, but if the sandbag guide frame of the present invention is used, work efficiency of 1500 bags / 3 people or more can be expected per day. . In addition, when the sandbag bags 40 are spread, pressure is applied to each sandbag bag 40 by applying a pressure with a vibration pressure device or the like for each spread sandbag bag 40. In addition, the same After the two sandbags 40 are lined up in the horizontal direction, pressure is applied to the sandbags 40 of the same step with a load roller to generate additional tension on each sandbag 40, and there is sufficient space between the internal materials. To generate a strong frictional force.

FIG. 6 is a view showing a state in which the sandbag bag guide frame of the present invention is placed under the sandbag. FIG. 6 (A) is a view showing a state in which the sandbag bag guide frame is placed at the lower part of the sandbag bag and the opening at the upper end of the sandbag bag 40 is opened. As shown in FIG. 4, after arranging a plurality of sandbag bags 40, as shown in FIG. 6 (A), the sandbag bag guide frame 10 is placed at the bottom of the sandbag bag 40 whose upper end is open, and then the sandbag bag is placed. Insert material with a measuring scoop (not shown) from the upper opening of 40, then pull the fastening string 41, close the opening of the sandbag 40, and tie the fastening string 41 with your hand or tighten it with the stopper 42. Fasten the string 41. FIG. 6 (B) is a diagram showing a state in which the opening portion is closed and then the fastening string 41 is fixed by the stopper 42. As shown in FIG. 6 (B), in the present invention, after the sandbags 40 are aligned and placed, the sandbags 40 are put into the soil, and the strings 41 of the sandbags 40 are tightened to tighten the strings 41 of the sandbags 40. Can be obtained. Therefore, it is not necessary to adjust the position of each of the aligned rectangular parallelepiped bags 40 by simply fastening the strings 41 of the plurality of sandbags 40.

[0035] Second Embodiment

FIG. 7 is a diagram showing the configuration of the base frame according to the second embodiment of the present invention. This base frame 50 prevents the sandbag bag guide frame 10 from sinking when the sandbag bag 40 is placed in a place where the ground is particularly soft, such as a soft sag, and the sandbag bag guide frame 10 tilts. Therefore, it is for laying on the part that touches the ground directly. The base frame 50 is composed of a lower frame 51 formed in a rectangular shape and an upper frame 52 formed adjacent to the lower frame 51. The base frame 50 is large enough to accommodate the fixed piece 20 in the center of the upper frame 52. Notch 53 is provided. Fig. 7 (A) is a plan view of the base frame 50 as viewed from above, Fig. 7 (B) is a side view of the base frame 50 as viewed from the side, and Fig. 7 (C) is the base frame. It is the perspective view which looked at 50 from diagonally upward. As shown in Fig. 7 (C), the bottom of the base frame 50 is an opening, and when the lower frame 51 bites into the soft ground, the soil below the opening 54 is inside the lower frame 51. Enter and ride on it. It will support the sandbag 40.

[0036] In an extremely soft ground that contains a large amount of water, a bottom sandbag is installed and pressure is applied. If the pressure is applied, tension will be generated in the bag, and the soil under the sandbag bag will escape before friction occurs in the material inside, so that no matter how much pressure is applied, the necessary tension will not be generated. There is no strength. As a result, the sandbags remain in a soft state, causing irregular deformation or subsidence. If pressure is applied to a certain level and subsidence or deformation does not stop

The next stage is stacked as it is. By repeating this, even if the ground is very bad, it will be stabilized in about 3 steps, but the level of subsidence at the bottom will vary, making it difficult to manage the level in the vertical direction. When the base frame 50 is used for the construction of such an ultra-soft ground, the soil enters the opening at the bottom of the base frame, and the 51 side frames of the base frame define and restrain the soil that has entered the base frame. Frictional force can be generated between the soil particles that have entered. As a result, the same situation is created as if there was another one-stage sandbag under the bottom sandbag. In addition, the direction of compression with respect to the soil particles that have entered the base frame 51 is one vertical direction, and the side surfaces of the base frame 51 prevent the soil particles from spreading in the lateral direction, thus preventing shear failure of the soil particles. In addition, since the side of the soil particles in the frame is partitioned, water penetration is only on the bottom surface, and the soil particles in the base frame 51 can be locally compacted in a short time. Stable level and strength can be secured even in construction on soft ground.

FIG. 8 is a diagram showing a state in which the sandbag bag having the sandbag bag guide frame according to the second embodiment of the present invention is placed on the base frame. FIG. 8 (A) is a view showing a sandbag 40 in which a plate-like rib 11 is arranged at the bottom and a material is put therein. Since the plate-like rib 11 is placed inside the sandbag 40, it is represented by a dotted line. FIG. 8 (B) is a diagram showing the base frame 50 as viewed from the side. The sandbag 40 containing the soil is placed on the base frame 50 in the direction indicated by the arrow E in FIG. FIG. 8C is a side view showing the base frame 50 placed on the base frame 50. The fixing piece 20 shown in FIG. 2 is fitted into the notch 53 in FIG. 8 (C). FIG. 8 (D) is a perspective view showing a state in which the sandbag 40 is placed on the base frame 50. At this time, the sandbag 40 is sandwiched between the plate-like rib 11 of the guide frame 10 and the upper frame 52 of the base frame 50, and is fixed firmly. In this way, by placing the sandbag bag 40 on the base frame 50, the lower frame 51 part bites into the soft ground, so that the deformation of the first-stage sandbag bag 40 is minimized. Therefore, it is possible to secure the installation accuracy of the sandbag bag 40 in the second and subsequent stages.

[0038] In this construction method, the sandbag bag 40 having the sandbag bag guide frame 10 is connected to the base frame 50. After that, the sandbags 40 are arranged in a lattice pattern by the connecting pieces 30, and then the material is put into each sandbag 40. However, if the ground is soft enough that people cannot walk, that is, a foothold cannot be secured, materials can be placed in the sandbag bag 40 with the fixed piece 20 connected to the base frame 50, and then installed. A large number of sandbags 40 are connected in a grid with connecting pieces 30 and installed at the target location. Note that the number of sandbags that can be installed at one time varies depending on whether only human power is available or equipment can be used.

The embodiment described above is an example for explaining the present invention, and the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the invention. . In the above embodiment, the force described for the square guide frame is not limited to this. A guide frame such as a rectangle or a triangle can also be used. In the above embodiment, the coupling hole 13 and the pins 23a and 23b have been described as round. However, these shapes can also be rectangular, triangular, or the like. Although the fixed piece 20, the rectangular hole 22 and the like have been described with respect to a rectangular shape, the shape is not limited to this, and it may be a circle, an ellipse, a square, or the like. Further, the shapes of the drawn nails 33a, 33b, 35a, and 35b shown in FIG. 3 are merely examples, and are not limited to these shapes.

Industrial applicability

[0040] The present invention can be applied to a sandbag bag used for ground reinforcement and a sandbag bag guide frame used in a sandbag construction method using the sandbag bag.

Brief Description of Drawings

FIG. 1 is a diagram showing a structure of a sandbag guide frame according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a fixing piece according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a connection piece according to the first embodiment of the present invention.

FIG. 4 is a view showing a state in which a plurality of sandbag bag guide frames according to the first embodiment of the present invention are coupled together.

FIG. 5 is a view showing a state in which a plurality of sandbag bag guide frames according to the first embodiment of the present invention are coupled together.

FIG. 6 is a view showing a state in which the sandbag bag guide frame of the first embodiment of the present invention is placed under the sandbag.

FIG. 7 is a diagram showing a configuration of a base frame according to a second embodiment of the present invention. FIG. 8] A diagram showing how the sandbag bag having the sandbag guide frame is placed on the base frame in the second embodiment of the present invention.

FIG. 9 is a view showing a sandbag bag having a sandbag bag frame according to a first conventional example.

FIG. 10 is a view showing a sandbag bag having a sandbag bag bottom body according to a second conventional example.

Explanation of symbols

10 Sandbag bag guide frame

1 1 Plate-shaped rib

12 Beam

14, 14a, 14b / J

20 Fixed piece

21 Fixed single frame

22 Rectangular hole

23, 23a, 23b pins

30 connection piece

31 Fixed part

32, 32a, 32b, 34 ,:

33, 3ό &, d3b, 35 ,：

40 table

41 Tie

42 Stopper

50 Base frame

51 Bottom frame

52 Upper frame

53 Notch

54 opening

Claims

The scope of the claims

[1] Placed on the bottom of each sandbag bag, it is used to align the sandbag bags in a grid pattern.

The plate-shaped rib includes a rectangular hole formed in a central portion thereof, and a small hole formed on the plate-shaped rib on each outer side in the longitudinal direction of the rectangular hole. frame.

[2] The sandbag guide frame according to claim 1, wherein the sandbag guide frame includes a beam connecting the centers of the corresponding plate-shaped ribs to each other.

3. The sandbag guide frame according to claim 1 or 2, further comprising a fixing piece having a pin inserted into the small hole on the plate-like rib.

[4] The connecting piece according to claim 3, further comprising a connection piece having a claw that penetrates a rectangular hole formed in a center of the fixed piece and is inserted into the rectangular hole on the plate-like rib. Sandbag bag guide frame.

[5] In order to put the sandbag bag guide frame placed in the sandbag bag, the upper frame and the lower frame force formed in a rectangular shape, or a notch for connecting the connecting piece to the middle part of the upper frame The sandbag bag guide frame according to claim 4, further comprising a base frame including

[6] A plurality of sandbag bags in which the sandbag bag guide frame in claim 1 is placed are aligned, and the pin of the fixing piece in the claim 3 is inserted into the small hole of the guide frame from the outside of the sandbag bag. And

Each guide frame is joined by inserting the claw of the connection piece in claim 4 into the rectangular hole of the plate-like rib in claim 1 through the rectangular hole in the fixed piece, Use the sandbag bag guide frame, which puts multiple sandbags in a grid pattern by pulling the sandbag bag straps and tightening the sandbag bag openings after putting the material in the sandbag bag. There was a sandbag bag method.