JP3014185U - Retaining wall construction unit and retaining wall structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Retaining wall construction unit that can easily and reliably construct even a high earth retaining wall, and retaining wall structure constructed with this retaining wall construction unit. I will provide a. [Structure] A concrete front wall is constructed by sequentially stacking, and a concrete shelf plate 4 is inclined and arranged on the back side of the front wall so that the rear edge side is higher than the front edge side. A retaining wall construction unit for constructing a wall 2, comprising a front panel 7 constituting all the walls, two buttresses 8 connected to both end edges of the front panel and extending rearward, and between the buttresses. And a shelf board 4 supported by a shelf receiving portion 8b obliquely formed on the inner surface of the buttress wall to form a retaining wall construction unit, and using this to construct a retaining wall. To do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention uses a retaining wall construction unit for constructing a retaining wall having a concrete front wall and a concrete shelf plate provided on the back side of the front wall, and uses this retaining wall construction unit. It is related to the retaining wall structure constructed by.

[0002]

[Prior art]

 Conventionally, concrete blocks have been used for earth retaining walls that are low in height, but in general, large-scale earth retaining walls have no choice but to use cast-in-place buttress type concrete reinforcement. there were.

[0003]

[Problems to be solved by the device]

 However, the conventional retaining wall made of reinforced concrete retaining walls is difficult to construct, implement, and is economical because it is site-drilled and large in size. There are drawbacks such as a large amount of space is required to secure the cut and the amount of cut soil for work is also large.

On the other hand, in recent years, the installation location is often extremely severe in terrain conditions, and the retaining wall structure as described above, which is restricted by the terrain conditions, cannot be adopted.

A first object of the present invention is to solve the above-mentioned drawbacks of the prior art and to construct a safe earth retaining wall even with a high earth retaining wall easily and reliably. It is to provide a retaining wall construction unit capable of constructing a retaining wall.

A second object of the present invention is to provide a safe and robust retaining wall structure by constructing an earth retaining wall using the retaining wall building unit as described above.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the retaining wall construction unit of the present invention constructs a front wall made of concrete by sequentially stacking the front wall on the back side of the front wall. A retaining wall construction unit for constructing a retaining wall by arranging concrete shelf plates in a slanted manner so that the rear edge side is higher than the front edge panel, which constitutes all the walls, and the front panel. Two buttresses that are connected to both edges of the panel and extend rearward, and are arranged so as to extend across the buttresses and are supported by a shelf receiver that is formed obliquely on the inner surface of the buttress. It is composed of a shelf plate that is open.

A plurality of connecting bodies made of band iron project at both ends of the front panel, and the connecting body and the connecting body made of band iron protruding from the front end edge of the retaining wall are connected to each other to connect the front panel and the front panel. The wall and the wall are connected to each other in a substantially U shape.

In addition, a horizontal oblong recess for forming a drainage hole is formed at the lower edge of the front panel, and a slit-shaped drainage hole is formed in the retaining wall by sequentially stacking the front panels. It

The retaining wall construction units having the above-mentioned configuration are arranged side by side in the lateral direction and are sequentially stacked and arranged, and the earth retaining wall is constructed by filling the concrete wall between the adjacent retaining walls. .

[0011]

[Action]

 Units such as front panels, buttresses and shelves will be transported to the site, the foundation will be constructed, and then the units will be placed side by side with vertical bars and other elements arranged side by side to build a retaining wall. The front panel and the buttress are connected in a generally U-shaped plane by connecting the connectors that project from both ends of the front panel with the connectors that project at the front edge of the buttress. Filled concrete is filled. The shelves are placed on a shelf receiving part that is formed diagonally on the inner surface of the buttress wall so that they are inclined at a predetermined angle, and the earth retaining wall is constructed by placing backfill material and soil. .

[0012] The constructed retaining wall has a slit-shaped water draining hole, and the shelf plate is inclined so that the rear edge of the shelf faces upward. Water gathers quickly along the drainage hole and is drained all at once.

[0013]

【Example】

 An embodiment of a retaining wall construction unit and a retaining wall structure according to the present invention will be described with reference to FIGS. 1 to 5. FIG. 1 is a sectional view of the retaining wall showing a state in which an earth retaining wall having a height of 3 m is constructed, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is an exploded perspective view of the retaining wall constructing unit. Fig. 4 is a sectional view of the retaining wall showing a state in which a soil retaining wall having a height of 4 m is constructed, and Fig. 5 is a sectional view taken along the line AA in Fig. 4.

In the figure, 1 is a foundation, 2 is a front wall (vertical wall), 3 is a slit-shaped water drain hole provided in the front wall 2, and 4 is a shelf plate arranged on the back side of the front wall 2. And the rear edge is inclined so that it faces upward. The drain hole 4 is provided so as to correspond to the height position of the upper surface of the front edge of the shelf plate 4. A plurality of shelves 4 are arranged, and a plurality of drain holes 3 are provided so as to correspond to each shelf 4.

In the figure, reference numeral 6 denotes a concrete building unit 6, which is placed side by side and sequentially stacked to form a front wall 2. As shown in FIG. 3, the construction unit 6 includes a front panel 7, two retaining walls 8 connected to both edges of the front panel 7 and extending rearward, and a shelf board 4. A laterally elongated recess 7b for forming the drainage hole 3 is formed at the lower edge of the front panel 7, and the front panel 7 and the retaining wall 8 are connected to each other in a generally U-shaped plane. The shelf board 4 is arranged so as to extend between the retaining walls 8 and 8 and is supported by a shelf receiving portion 8b formed on the inner surface of the retaining wall 8.

The front panel 7 is embedded in the front panel 7 with the connecting fittings 7a made of steel strips protruding at both ends. Be connected. The connecting metal fitting 8a of the retaining wall 8 can be protruded rearward so that a plurality of retaining walls can be continuously connected to the rear side.

As shown in FIGS. 1, 2, 4 and 5, the front panel 7 and the retaining wall 8 are connected and juxtaposed side by side, and they are stacked one after another, and are inserted between the opposing retaining walls 8 and 8 facing each other. The retaining wall 2 is constructed by filling the concrete 10.

In the figure, 9 is a backing material, and 11 and 12b are vertical streaks, and the upper end portion 11a of the vertical streaks 11 is bent to reinforce the bar arrangement of dog running. Reference numeral 12a is a basic reinforcement, 12c is a hook reinforcement, 12d is a strip-shaped vertical reinforcement, 12e is a connection reinforcement, and 15 is top end concrete.

[0019]

[Effect of device]

 The retaining wall construction unit and retaining wall structure of the present invention have the following effects. 1. When constructing a retaining wall, the unit can be transported to the site and easily installed.

2. It is possible to save labor for concrete, rebar, formwork, etc., and also to shorten the construction period even for a high-height retaining wall, thus enabling cost reduction of the entire construction.

3. Since the foundation width can be shortened and the amount of cut soil for foundation construction can be reduced a. Natural destruction can be reduced. b. Retaining walls can be constructed even in narrow spaces where land acquisition is difficult. c. Retaining walls with a high degree of safety can be constructed even on steep slopes or places where houses are close to the cliff.

4. It is possible to construct a vertical retaining wall, and it is possible to construct a retaining wall with a high degree of safety on steep slopes, long slopes, and other places where it was not possible with conventional construction methods. Is possible.

Due to its excellent drainage capacity, it is robust in dangerous cliffs where there is a large amount of spring water, places where landslides are likely to occur, cliffs where the groundwater level is high, places where water supply (mizumichi) is not clear, etc. It is possible to construct a safe retaining wall and to cope with heavy rainfall.

5. The entire retaining wall can have a flexible structure, and since the shelves become underground beams and also serve as shock absorbers, places such as railroads, roads, factories, etc. where there is a lot of vibration, evacuation sites in the event of an earthquake, etc. It is possible to build a retaining wall with high safety.

[Brief description of drawings]

FIG. 1 is a sectional view of a retaining wall showing an example in which a retaining wall having a height of 3 m is constructed by using the retaining wall constructing unit according to the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is an exploded perspective view of a retaining wall construction unit.

FIG. 4 is a sectional view of a retaining wall showing an example in which a retaining wall having a height of 4 m is constructed using the retaining wall constructing unit according to the present invention.

5 is a cross-sectional view taken along the line AA in FIG.

[Explanation of symbols]

 1 Foundation 2 Front Wall 3 Drain Hole 4 Shelf Board 6 Construction Unit 7 Front Panel 7a Connected Body 7b Recess 8 Retaining Wall 8a Connected Body 8b Shelf Receiver

Claims (5)

[Scope of utility model registration request] 1. A front wall made of concrete is constructed by sequentially stacking, and a concrete shelf plate is arranged on the back side of the front wall so that the rear edge side is higher than the front edge side. A retaining wall constructing unit for constructing a retaining wall, comprising: a front panel forming all the walls; two retaining walls extending rearward, connected to both end edges of the retaining panel; And a shelf plate that is supported by a shelf receiving portion that is formed obliquely on the inner surface of the buttress wall. 2. A plurality of connecting bodies made of strip iron project at both ends of the front panel, and the connecting body and the connecting body made of strip iron projecting from the front end edge of the buttress wall are connected to the front panel. The retaining wall construction unit according to claim 1, wherein the retaining wall and the retaining wall are connected to each other in a substantially U-shape in plan view. 3. The retaining wall construction unit according to claim 1, wherein a laterally long concave portion for forming a drainage hole is formed at a lower edge of the front panel. 4. A retaining wall structure comprising a front wall made of concrete and a shelf made of concrete provided on the rear side of the front wall, the front panel constituting all the walls, and both ends of the front panel. Two buttresses that are connected to the edges and extend rearward, and a shelf plate that is arranged across the buttress walls and that is supported by a shelf receiver formed on the inner surface of the buttress wall. A retaining wall structure in which the retaining wall constructing units consisting of are arranged side by side in the lateral direction and are sequentially stacked and arranged, and a concrete wall is filled between adjacent buttress walls. 5. The retaining wall structure according to claim 4, wherein the retaining wall has slit-shaped water draining holes formed by laterally elongated recesses formed at the lower end edges of the front panels that are sequentially stacked. .