JP6989865B1 - A concrete retaining wall made of molded members fixed in a ladder shape. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concrete structure made of a molded member fixed in a ladder shape, which can solve the problem of a reinforced concrete structure. SOLUTION: Two floor board materials 5 having dovetail grooves on the plate surface of the plate material 3 and recessed on both side surfaces are arranged side by side on a retaining wall foundation base A, and fixed by a plurality of floor plate separators 6. A floor board frame 10 made by alternately connecting and fixing a ladder-shaped floor frame material 7 and a connecting plate 9 convex on both side surfaces of the board 3, and a ladder-shaped floor frame on the floor frame 10. A foundation form of a retaining wall formed by alternately connecting and fixing a material 7 and a connecting plate material 9 to form a haunch 8, and a wall plate material having dovetail grooves on the plate material 3 and a plurality of dowel holes on both sides thereof. A wall B of a retaining wall formed by arranging two sheets side by side and fixing them in a masonry structure using a ladder-shaped wall frame material and a dowel wood 16 formed by inserting a plurality of wall plate separators 14 into the dovetail groove of the wall plate material. A concrete retaining wall made of concrete 18 by providing a plurality of drainage pipes 17 on the form frame frame of the retaining wall consisting of the retaining wall C and the retaining wall C. [Selection diagram] Fig. 1

Description

The present invention relates to a concrete retaining wall made of a molded member fixed in a ladder shape.

Types of traditional retaining walls
1. Empty-stacked retaining wall: A retaining wall made by stacking stone and concrete blocks (such as Machi blocks).
2. Retaining wall of kneading type: A retaining wall in which stones and concrete blocks (such as Machi blocks) are piled up and cement or mortar is filled between them.
3. Gravity retaining wall: An unreinforced concrete retaining wall that supports the pressure of the soil on the back by the weight of the product itself.
4. Leaning type retaining wall: A retaining wall in which concrete is often placed so that the retaining wall does not stand on its own and leans against the ground.
5. Precast L-shaped retaining wall: Retaining wall that supports the pressure of the soil on the back including the gravity of the soil on the bottom. (Easy to remove) A commonly used retaining wall.

There are various types of retaining walls in conventional retaining walls.

Patent No. 5315498

None

The conventional retaining wall had the following problems.
〇 The problem of empty retaining walls is that it is difficult to deal with high retaining walls and the area of the created land is lost.
〇 The problem that the kneaded retaining wall is difficult to cope with the high retaining wall and the area of the created land is lost.
〇 Gravity type retaining wall is difficult to cope with high retaining wall and the problem of losing the area of the created land.
〇 The problem with precast L-shaped retaining walls is that it is difficult to deal with high retaining walls.
All of the conventional retaining walls have a long construction period and high construction costs.

In view of the above problems, the present invention provides a concrete retaining wall made of a molded member fixed in a ladder shape, which has a short construction period, a low price, and is excellent in easy workability.

The present invention has been made to solve the above-mentioned problems, and is a retaining wall foundation foundation formed by placing leveling concrete on the foundation crushed stone of the floored surface, and a plate material is placed on the retaining wall foundation foundation. Multiple floorboards with dovetail grooves on both sides of the dovetail groove on the board surface, with two floorboards placed side by side at intervals. A ladder-shaped floorboard frame material that is assembled and fixed in a ladder shape by inserting separators at equal intervals, and the ladder-shaped floorboard type frame material is provided with dovetail grooves on the plate surface of the plate material and convex on both sides. A flooring frame made by alternately connecting and fixing using the connecting plate material and the connecting plate material having a shortened haunch width, and a ladder-shaped flooring frame material having a haunch width on the flooring type frame . A wall plate material having dovetail grooves on the plate surface of the plate material and a plurality of dowel holes on both side surfaces is formed by alternately connecting and fixing the connecting plate material and the connecting plate material having a shortened wall thickness. A foundation frame of a retaining wall that closes both edges using wood, and a wall with dovetail grooves on the plate surface of the plate material and multiple dowel holes on both sides on the foundation template of the retaining wall. A ladder-shaped wall made by arranging two plates side by side at intervals, inserting multiple wall plate separators with dovetail processing on both ends evenly into the dovetail groove of the wall plate material, and fixing them in a ladder shape. A frame material, a frame frame of a retaining wall consisting of a wall of a retaining wall and a retaining wall, which is fixed in a stack using the ladder-shaped wall frame material and a dowel tree, and a plurality of frame frames of the retaining wall. A ladder characterized by providing a drainage pipe, placing concrete on the retaining wall skeleton, providing a water-permeable layer on the haunch of the retaining wall skeleton, and backfilling with embankment to construct a concrete retaining wall. Provided is a concrete retaining wall (claim 1) made of a molded member fixed in a shape.

On the foundation form of the retaining wall according to claim 1, two wall plate materials having dovetail grooves on the plate surface of the plate material and a plurality of dowel holes on both side surfaces are arranged side by side at intervals. A ladder-shaped wall frame material, which is made by inserting multiple wall plate separators with dovetail processing on both ends into the dovetail groove of the wall plate material at equal intervals and fixing them in a ladder shape, the ladder-shaped wall frame material and the dowel. The wall of the retaining wall is fixed by using wood to form a multi-tiered stack, and the frame of the retaining wall is composed of the wall of the retaining wall and the retaining wall. A concrete retaining wall made of a ladder-shaped fixed molding member, which is characterized by gradually reducing the thickness from the bottom to the top and gradually lengthening the retaining wall from the bottom to the top to correspond to the strength of the concrete retaining wall ( 2) is provided.

On the foundation form of the retaining wall according to claim 1, two wall plate materials having dovetail grooves on the plate surface of the plate material and a plurality of dowel holes on both side surfaces are arranged side by side at intervals. A ladder-shaped wall frame material, which is made by inserting multiple wall plate separators with dovetail processing on both ends into the dovetail groove of the wall plate material at equal intervals and fixing them in a ladder shape, the ladder-shaped wall frame material and dowels. The wall of the retaining wall is fixed by using wood to form a multi-tiered stack, and the wall of the retaining wall is made of the wall of the retaining wall and the retaining wall. 1 . Provided is a concrete retaining wall (claim 3) made of a molded member fixed in the shape of a ladder.

The significant effects of the present invention are listed.
B) Reinforcing bar work and formwork work are not required.
B) Good workability does not require advanced technology.
C) The amount of concrete can be significantly reduced.
2) The concrete load can be significantly reduced.
E) Construction costs can be significantly reduced.
F) The construction period can be shortened significantly.

As described above, according to the invention of claim 1, a foundation wall foundation formed by placing leveling concrete on the foundation crushed stone of the floored surface, and a plate material on the foundation wall foundation. Multiple floorboards with dovetail grooves on both sides of the dovetail groove on the board surface, with two floorboards placed side by side at intervals. A ladder-shaped floorboard frame material made by inserting separators at equal intervals and fixing them in a ladder shape, and the ladder-shaped floorboard type frame material is provided with dovetail grooves on the plate surface of the plate material and convex on both sides. A floorboard frame made by alternately connecting and fixing using the connecting plate material and the connecting plate material having a shortened haunch width, and on the floorboard type frame, a ladder-shaped floorboard type frame material having a haunch width. The connecting plate material and the connecting plate material having a shortened wall thickness are alternately connected and fixed to form a haunch, and a wall plate material having dovetail grooves on the plate surface of the plate material and a plurality of dowel holes on both side surfaces is used as a dowel . A foundation frame of a retaining wall that closes both edges using wood, and a wall with dovetail grooves on the plate surface of the plate material and multiple dowel holes on both sides on the foundation template of the retaining wall. A ladder-shaped wall made by arranging two plates side by side at intervals, inserting multiple wall plate separators with dovetail processing on both ends evenly into the dovetail groove of the wall plate material, and fixing them in a ladder shape. A frame material, a frame frame of a retaining wall consisting of a wall of a retaining wall and a retaining wall, which is fixed in a stack using the ladder-shaped wall frame material and a dowel tree, and a plurality of frame frames of the retaining wall. A drainage pipe is provided, a retaining wall skeleton made by placing concrete, a water-permeable layer is provided on the haunch of the retaining wall skeleton, and the concrete retaining wall is constructed by backfilling with embankment. A great effect can be obtained that enables mass consumption and activates the exhausted mountain village forestry industry.

According to the invention of claim 2, on the foundation form of the retaining wall according to claim 1, wall plate materials having dovetail grooves on the plate surface of the plate material and a plurality of dowel holes on both side surfaces are spaced apart from each other. A ladder-shaped wall frame material that is made by inserting multiple wall plate separators with ant-hozo processing on both ends at equal intervals into the dovetail groove of the wall plate material and fixing them in a ladder shape. The wall thickness is changed to a retaining wall frame skeleton consisting of a retaining wall wall and a retaining wall, which is fixed in a multi-tiered stack using the ladder-shaped wall frame material and dowel wood. By using wallboard materials, the wall thickness of the retaining wall is gradually reduced from the bottom to the top, and the retaining wall is gradually lengthened from the bottom to the top to correspond to the strength of the concrete retaining wall, and various high-strength concrete. A great effect is obtained that the retaining wall can be easily constructed.

According to the invention of claim 3, on the basic form of the retaining wall according to claim 1, wall plate materials having dovetail grooves on the plate surface of the plate material and a plurality of dowel holes on both side surfaces are spaced apart from each other. A ladder-shaped wall frame material, which is made by inserting two wall plate separators with dovetail processing on both ends at equal intervals into the dovetail groove of the wall plate material and fixing them in a ladder shape. The wall thickness is changed to the frame skeleton of the retaining wall consisting of the wall of the retaining wall and the retaining wall, which is fixed in a multi-tiered stack using the ladder-shaped wall frame material and the dowel tree, and the frame skeleton of the retaining wall. By using a wall board material and applying decorative material to the outer wall surface of the holding wall, which is made by gradually thinning the wall thickness of the holding wall from the bottom to the top, the durability of the board material is protected and the design is adapted to suit the environment. A great effect can be obtained in which various beautiful concrete retaining walls can be easily constructed.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of a concrete retaining wall made of a molded member fixed in a ladder shape according to the present invention. FIG. 2 is a plan view of a concrete retaining wall. FIG. 3 is a cross-sectional view of FIG. Figure 4 is a cross-sectional view of a tall retaining wall by changing the wall thickness of the retaining wall. Figure 5 is a bird's-eye view of a ladder-shaped floor formwork. Figure 6 is a bird's-eye view of the connecting plate material. Figure 7 is a bird's-eye view of a ladder-shaped wall formwork. Figure 8 is a bird's-eye view of the wallboard material . Figure 9 is an enlarged view of part C in Figure 4. FIG. 10 is a cross-sectional view of part A in FIG. FIG. 11 is a cross-sectional view of part B in FIG. FIG. 12 is an enlarged view of part D in FIG. FIG. 13 is an enlarged view of part E in FIG. FIG. 14 is an enlarged view of part F in FIG. FIG. 15 is an enlarged view of the G portion of FIG.

Explaining an embodiment of the present invention with drawings, FIG. 1 shows a retaining wall foundation base A formed by placing leveling concrete 2 on a foundation crushed stone 1 of a floored surface, and on the retaining wall foundation foundation A. , The floor board material 5 formed by providing dovetail grooves 4 on the plate surface of the plate material 3 and concavely processing on both side surfaces is arranged side by side at intervals, and the dovetail grooves 4 of the floor board material 5 are placed on both ends. A ladder-shaped floor board frame material 7 formed by inserting a plurality of ant-hozo-processed floor board separators 6 at equal intervals and fixing them in a ladder shape, the ladder-shaped floor board frame material 7 and a haunch 8 width. A floor board frame 10 formed by alternately connecting and fixing connecting plate materials 9 having dovetail grooves 4 provided on the plate surface of the shortened plate material 3 and convex on both side surfaces, and the above-mentioned, on the floor board mold 10. A ladder-shaped floor frame material 7 with a width of 8 haunches and a connecting plate material 9 with a shortened wall thickness are alternately connected and fixed, and dovetail grooves 4 are provided on the plate surface of the plate material 3 to provide multiple dowel holes 11 on both sides. A dovetail groove is provided on the plate surface of the plate material 3 on both sides of the foundation frame 13 of the retaining wall formed by closing both edges and the foundation mold 13 of the retaining wall. Two wall plate materials 12 having a plurality of dowel holes 11 are arranged side by side at intervals, and a plurality of wall plate separators 14 having dovetail-processed ends are inserted evenly into the dovetail grooves 4 of the wall plate material 12. , A ladder-shaped wall frame material 15 that is assembled and fixed in a ladder shape, and a retaining wall wall B and a retaining wall C that are assembled and fixed using the ladder-shaped wall frame material 15 and a dowel tree 16. A retaining wall skeleton D made of a retaining wall, a retaining wall skeleton E made by providing a plurality of drainage pipes 17 on the retaining wall mold skeleton D and placing concrete 18 on the retaining wall, and a haunch 8 of the retaining wall skeleton E. It is sectional drawing of the concrete retaining wall made by the molded member fixed in the ladder shape which concerns on this invention which showed the concrete retaining wall F constructed by providing the water permeable layer 19 on the floor and backfilling with the embankment 20.

FIG. 2 is a plan view of a concrete retaining wall.

FIG. 3 is a cross-sectional view of FIG.

FIG. 4 is a cross-sectional view for constructing a high retaining wall by changing the wall thickness of the retaining wall.

FIG. 5 is a bird's-eye view of a ladder-shaped floor formwork.

FIG. 6 is a bird's-eye view of the connecting plate material.

FIG. 7 is a bird's-eye view of a ladder-shaped wall formwork.

FIG. 8 is a bird's-eye view of the wallboard material.

FIG. 9 is an enlarged view of part C in FIG.

FIG. 10 is a cross-sectional view of part A in FIG.

FIG. 11 is a cross-sectional view of a portion B of FIG.

FIG. 12 is an enlarged view of part D in FIG.

FIG. 13 is an enlarged view of part E in FIG.

FIG. 14 is an enlarged view of the F portion of FIG. 7.

FIG. 15 is an enlarged view of the G portion of FIG.

Although the drawings have been described above, the present invention can improve the drawbacks of the conventional retaining wall made of reinforced concrete, and can easily make a wide variety of unreinforced concrete retaining walls even by multi-skilled workers without requiring advanced skills. The purpose is to be able to construct it inexpensively.

In addition, since the board and sepa materials used in the present invention are made from Japanese wood, it can contribute to the revitalization of the exhausted mountain village forestry of municipalities nationwide.

Usage Guide

Legend of ladder-shaped floor board type frame material 7: Floor board material 5 with dovetail grooves 4 provided on the plate surface of a plate material 3 of 50 mm × 150 mm × 4,000 mm and recessed 12 mm × 12 mm on both sides at intervals of 200 mm. 2 sheets are placed side by side, and 8 50 mm x 50 mm x 200 mm floor board separators 6 with dovetail processing on both ends are inserted into the dovetail groove 4 of the floor board material 5 at intervals of 500 mm and assembled in a ladder shape. Ladder-shaped floor frame material 7 shown in Fig. 5 which is fixed.

Legend of ladder-shaped wall frame material 15: Wall plate material 12 with dowel holes 11 of 10 mmφ on both sides with dowel grooves 4 provided on the plate surface of plate material 3 of 50 mm × 150 mm × 4,000 mm at intervals of 200 mm. Open and place them side by side, insert eight 50 mm x 50 mm x 200 mm wall plate separators 14 with dowel tenons on both ends into the dowel grooves 4 of the two wallboard materials 12 at intervals of 500 mm, and fix them in a ladder shape. Ladder-shaped wall frame material consisting of 15.

Legend of connecting plate material 9: A connecting plate material 9 having a dovetail groove 4 provided on the plate surface of a plate material 3 having a size of 50 mm × 150 mm × 4,000 mm and convex processing of 12 mm × 12 mm on both side surfaces.

Ladder-shaped wall thickness change Wall type frame material 22 Legend: Wall plate materials 12 and 100 mm with dovetail grooves 4 and 10 mmφ dowel holes 11 on both sides of the plate surface of the plate material 3 of 50 mm × 150 mm × 4,000 mm. Wall plate materials 21 that change the wall thickness are arranged side by side with dovetail grooves 4 provided on the plate surface of the plate material 3 of × 150 mm × 4,000 mm and 10 mmφ dowel holes 11 provided on both sides. , Eight 50 mm x 50 mm x wall thickness changeable wall board separators 14 with mortise and tenon processing on both ends are inserted at intervals of 500 mm, and the ladder-shaped wall thickness change wall type frame material 22 is assembled and fixed in a ladder shape.

"Example of retaining wall construction"
With reference to FIG. 1, leveling concrete 2 is placed on the foundation crushed stone 1 covered with crushed stone on the floored surface, and the leveled concrete 2 is placed on the horizontally leveled retaining wall foundation foundation A. , The ladder-shaped floor frame material 7 and the connecting plate material 9 are connected to form the floor board frame 10, and the haunch 8 width ladder-shaped floor frame material 7 and the connecting with a shortened wall thickness are connected on the floor frame. Plates 9 are alternately connected and fixed, and a ladder-shaped wall frame 15 is placed on the frame D of the retaining wall provided with the concrete injection opening 26, and the ladder-shaped wall frame D is placed on the frame D of the retaining wall. To construct the wall B and the retaining wall C of the retaining wall by fixing the structure using. A form frame is formed on the upper part of the wall B of the retaining wall, and a plurality of drain pipes 17 are provided on the wall B of the retaining wall to form the form frame frame D of the retaining wall, and the inside of the form frame frame D of the retaining wall is formed. A water permeable layer 19 is provided on the haunch 8 of the retaining wall skeleton E in which the concrete 18 is placed, and the retaining wall F is constructed by backfilling with the embankment 20.

"Example of high retaining wall construction"
With reference to FIG. 4, on the floored surface with flooring, on the foundation crushed stone 1 with crushed stones, the leveling concrete 2 was placed and on the horizontally leveled retaining wall foundation foundation A. , The ladder-shaped floor frame material 7 and the connecting plate material 9 are connected to form the floor board frame 10, and the haunch 8 width ladder-shaped floor frame material 7 and the connecting with a shortened wall thickness are connected on the floor frame. Plates 9 are alternately connected and fixed, and a ladder-shaped wall frame 15 is placed on the frame D of the retaining wall provided with the concrete injection opening 26, and the ladder-shaped wall frame D is placed on the frame D of the retaining wall. The wall thickness is 250 mm for the lower wall, 200 mm for the middle wall, and 150 mm for the upper wall, and the connection is changed to the ladder-shaped wall thickness shown in Fig. 9. A wall frame material is provided to change the wall thickness. The wall thickness of the buttress C is 200 mm at the bottom, 200 mm at the middle, and 150 mm at the top, and the depth width of the buttress C is 2,000 mm at the bottom, 2,500 mm at the middle, and 2,500 mm at the top. Retaining wall wall B and buttress C will be constructed with a structure of 3,000 mm and a structure in which the depth width of the upper part is lengthened to give strength to the retaining wall. A form frame is formed on the upper part of the wall B of the retaining wall, and a plurality of drain pipes 17 are provided on the wall B of the retaining wall to form the form frame frame D of the retaining wall, and the inside of the form frame frame D of the retaining wall is formed. A water permeable layer 19 is provided on the haunch 8 of the retaining wall skeleton E in which the concrete 18 is placed, and the retaining wall F is constructed by backfilling with the embankment 20.

"Example of attaching an exterior material to a retaining wall"
A concrete retaining wall F made by pasting a wide variety of decorative materials on the decorative surface of the concrete retaining wall described in Examples 1 and 2 is constructed in order to adjust the corrosion and aesthetics of the wood.

In the present invention, the dimensions shown in the legend and the examples are shown as an example, and can be replaced with other dimensions. For example, the length and thickness of the plate material and the dimensions of the plate separator can be freely set according to the strength. In addition, the size of the molded member fixed in a ladder shape can be freely set. Further, the invention can be carried out without any trouble as long as it can obtain strength such as a material that replaces wood.

Now, with the advent of a carbon-free society, there is an urgent need to reform the reinforced concrete structure by melting ore to make and use reinforcing bars. On the other hand, a national project to promote CLT that can consume a large amount of domestic timber has started, but it will take many years to prepare the market and environment for consuming CLT. Furthermore, the cedar and cypress trees planted after the war, which have reached the appropriate age for logging, have been abandoned and abandoned by foreign timber, and the value of domestic timber has declined and is not being used. .. However, the timber of the forest, which occupies 63% of the national land, is an inexhaustible treasure resource of Japan by repeating planting and planting, and expanding the consumption of domestic timber is an important issue for the government. At the same time, it is well known that it is the cornerstone of regional creation.
The concrete retaining wall made of the ladder-shaped molded member of the present invention is mainly made of domestic wood, and the widespread use of the concrete retaining wall made of the molded member contributes to the activation of the exhausted mountain village forestry. can. Furthermore, according to the present invention, a concrete retaining wall that can withstand natural disasters such as earthquakes, tsunamis, fires, floods, and typhoons can be easily and inexpensively constructed, which can greatly contribute to disaster prevention in Japan.

FIG. 3 is a cross-sectional view of a concrete retaining wall made of a molded member fixed in a ladder shape according to the present invention. Floor plan of concrete retaining wall. Sectional view of FIG. A cross-sectional view to create a high retaining wall by changing the wall thickness of the retaining wall. A bird's-eye view of a ladder-shaped floor formwork. Bird's-eye view of connecting board material. A bird's-eye view of a ladder-shaped wall formwork. Bird's-eye view of wallboard material . Enlarged view of part C in Fig. 4. Section A sectional view of FIG. Section B sectional view of FIG. Enlarged view of part D in FIG. Enlarged view of part E in Fig. 6. Enlarged view of part F in Fig. 7. It is an enlarged view of the G part of FIG.

1. Foundation crushed stone
2. Leveled concrete
3. Board material
4. Dovetail groove
5. Floor board material
6. Floor board separation
7. Ladder-shaped floor formwork
8. Haunch
9. Connecting plate material
10. Floor formwork
11. Dowel hole
12. Wallboard material
13. Retaining wall foundation formwork
14. Wallboard Sepa
15. Ladder-shaped wall formwork
16. Dowel wood
17. Drain pipe
18. Concrete
19. Permeable layer
20. Connecting plate material with shortened wall thickness
21. Wall board material that changes the wall thickness
22. Ladder-shaped wall thickness change wall formwork material
23. Retaining wall
24. Cosmetic materials
25. Embankment
26. Concrete injection opening
A, Retaining wall foundation
B, retaining wall wall
C, buttress
D, formwork frame of retaining wall
E, retaining wall skeleton
F, concrete retaining wall
G, formwork frame of the lower retaining wall
H, formwork frame of the upper retaining wall

Claims (3)

Foundation of a floored surface A retaining wall foundation made by placing leveling concrete on crushed stone, a floor made of a dovetail groove on the plate surface of a plate material and concave on both sides on the retaining wall foundation. Two floorboard materials are placed side by side at intervals, and multiple floorboard separators with dovetail processing on both ends are inserted at equal intervals into the dovetail grooves of the floorboard material, and the floorboard material is assembled and fixed in a ladder shape. The floorboard type frame material of the above, the ladder-shaped floorboard type frame material , the connecting plate material in which dovetail grooves are provided on the plate surface of the plate material and convex on both side surfaces, and the connecting plate material having a shortened haunch width are used alternately. A flooring frame made by connecting and fixing to, and on the flooring frame, a ladder-shaped flooring frame material having a haunch width is alternately connected using the connecting plate material and a connecting plate material having a shortened wall thickness. A basic form of a retaining wall made by fixing and forming a haunch , providing dovetail grooves on the plate surface of the plate material, and using dowel wood to close both edges of the wall plate material with multiple dowel holes on both sides. On the foundation form of the retaining wall, wall plate materials having dovetail grooves on the plate surface of the plate material and multiple dowel holes on both sides are placed side by side at intervals to form the wall plate material. A ladder-shaped wall frame material, which is made by inserting multiple wall plate separators with dovetail processing on both ends at equal intervals into the dovetail groove and fixing them in a ladder shape, using the ladder-shaped wall frame material and dowel wood. The frame skeleton of the retaining wall consisting of the wall of the retaining wall and the retaining wall, which was fixed in a stacking structure, and the skeleton of the retaining wall made by providing multiple drainage pipes on the frame skeleton of the retaining wall and casting concrete. , A concrete retaining wall made of a molded member fixed in a ladder shape, characterized in that a water permeable layer is provided on the haunch of the retaining wall frame and backfilled with a filling to construct a concrete retaining wall. On the foundation form of the retaining wall according to claim 1, two wall plate materials having dovetail grooves on the plate surface of the plate material and a plurality of dowel holes on both side surfaces are arranged side by side at intervals. A ladder-shaped wall frame material, which is made by inserting multiple wall plate separators with dovetail processing on both ends into the dovetail groove of the wall plate material at equal intervals and fixing them in a ladder shape, the ladder-shaped wall frame material and the dowel. The wall of the retaining wall is fixed by using wood to form a multi-tiered stack, and the frame of the retaining wall is composed of the wall of the retaining wall and the retaining wall. A concrete retaining wall made of molded members fixed in a ladder shape, which is characterized by gradually reducing the thickness from the bottom to the top and gradually lengthening the retaining wall from the bottom to the top to correspond to the strength of the concrete retaining wall. On the foundation form of the retaining wall according to claim 1, two wall plate materials having dovetail grooves on the plate surface of the plate material and a plurality of dowel holes on both side surfaces are arranged side by side at intervals. A ladder-shaped wall frame material, which is made by inserting multiple wall plate separators with dovetail processing on both ends into the dovetail groove of the wall plate material at equal intervals and fixing them in a ladder shape, the ladder-shaped wall frame material and dowels. The wall of the retaining wall is fixed by using wood to form a multi-tiered stack, and the wall of the retaining wall is made of the wall of the retaining wall and the retaining wall. 1 . A concrete retaining wall made of molded members fixed in the shape of a ladder.

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