JPH0230514Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to the foundation of a retaining wall, which is an anti-earth pressure structure.

(b) Conventional technology Conventionally, the foundation of a retaining wall body constructed by combining square timbers has generally been constructed by pouring on site at a construction site. However, in such a structure, the entire foundation is usually constructed as one piece, so there are disadvantages in that it lacks flexibility and is easily broken by vibrations such as earthquakes. Moreover, each construction site has its own foundation built for each site, and these foundations have not been standardized or mass-produced, making it time-consuming and costly. There is also. Furthermore, there is the inconvenience that many things, such as materials for building the foundation and machinery necessary for building the foundation, must be transported to the construction site, which requires time and effort.

Incidentally, as this type of foundation for a retaining wall, a foundation such as that disclosed in Utility Model Application No. 15860/1983 has also been developed. That is, this block consists of two wall-shaped block bodies that abut and support the square material on the support surfaces provided at the upper edges, a front chestnut foot provided perpendicularly to the front ends of these block bodies, and the block. A plurality of foundation blocks in plan view each having a rear stone stopper provided perpendicularly to the rear end are lined up by butting the sides of the stone stoppers and connecting them with concrete. A basic block having a single block body in plan view is also interposed between the specific shaped basic blocks.

However, in a foundation in which foundation blocks of this shape or shape are lined up with the front and rear stone stoppers butted and connected, each block cannot move individually, and the overall rigidity is high. Therefore, such a device also has the disadvantage of being easily broken by vibrations such as an earthquake. Also,
Since the shaped basic blocks are bulky and cannot be closely arranged so as to interlock with each other, there is a problem that it is difficult to load them onto a truck or the like and transport them efficiently.

(c) Purpose The present invention was developed with attention to these circumstances, and because it is highly flexible, it is difficult to break due to vibrations such as earthquakes, and moreover, it can be standardized and mass-produced, making it easy to construct. It is less labor-intensive and costs less,
The purpose is to provide a foundation for a retaining wall that can reduce the time and labor required for transportation.

(d) Structure In order to achieve the above-mentioned object, the present invention provides the foundation of a retaining wall by a wall-shaped block body that abuts and supports a square member with a support surface provided at the upper edge, and a support surface of this block body. a fixing hole provided at a predetermined position and into which reinforcing bars connecting the square members are inserted and fixed;
A stopper provided at the rear end of the support surface for locking and positioning the square member, and a wall-shaped chestnut stopper provided substantially orthogonally to the front end of the block body, It is characterized by having a plurality of T-shaped basic blocks in plan view, which do not have a stone stopper provided at the rear end of the block body, arranged side by side so that the sides of the stone stoppers are close to each other in an unconnected state. shall be.

(E) Embodiment An embodiment of the present invention will be described below with reference to the drawings.

The retaining wall main body 1 is supported by a foundation 3 formed by arranging the required number of retaining wall foundation blocks (hereinafter referred to as foundation blocks) 2 in parallel, and the retaining wall main body 1 and the foundations 3 are filled with chestnut stone A. Retaining wall 4 is being constructed.

The retaining wall main body 1 is formed by sequentially forming a frame by combining square members 5 vertically and horizontally, and the whole is formed into a square shape, and reinforcing bars 6 are inserted at the connecting parts of each square member 5 to connect them. That is, the square material 5
is a corner member having a rectangular or rectangular cross section, and has a hole 5a passing through the reinforcing bar 6 at both ends thereof. The foundation block 2 includes a wall-shaped block body 8 having a support surface 7 inclined at a predetermined angle on its upper edge;
Fixing holes 9 are provided in the support surface 7 of the block body 8 in accordance with the spacing between the reinforcing bars 6, and the support surface 7
A hook-shaped stopper 11 provided at the rear end, and a wall-shaped chestnut stopper 12 provided substantially orthogonally to the front end of the block main body 8 so that the horizontal section forms a T-shape.
It is T-shaped in plan view. That is, the stone stopper 12 is provided only at the front end of the block body 8, and no stone stopper is provided at the rear end. However, this basic block 2,
The foundation 3 is constructed by arranging a plurality of the chestnut stone feet 12 so that their side surfaces are close to each other. Therefore, the stone stoppers 12 of each foundation block 2 are not connected to each other, as clearly shown in FIG.

Then, the retaining wall main body 1 is abutted and supported on the support surface 7 of the block main body 8, and the retaining wall main body 1
The lower ends of each of the reinforcing bars 6 are fitted into the fixing holes 9 and fixed, and the square member 5 at the lowest end of the retaining wall body 1 is locked and positioned by a hook-shaped stopper 11, and further, When the chestnut stone A filled in the retaining wall body 1 and the foundation 3 protrudes from the retaining wall 4, the chestnut stone stopper 1
This is prevented by 2. In addition, this Kuriishi stop foot 1
2 also has the role of stably standing up the block body 8.

With this kind of configuration, the required number of foundation blocks 2 are arranged in parallel to form the foundation 3 of the retaining wall 4, so even if vibrations such as an earthquake occur, each foundation block 2 can be separately installed. Vibrate. Therefore, compared to the conventional foundation in which the entire foundation is formed in one piece, it has higher flexibility and has the effect that the foundation 3 is less likely to break. In particular, with the foundation 3 of the present invention in which the T-shaped foundation blocks 2 are arranged close to each other in an unconnected state, the rear ends (ends on the side of the stone footing) of each foundation block 2 are not restrained by each other. Therefore, in the event of an earthquake,
Each basic block 2 can move independently without difficulty.
Therefore, the foundation 3 becomes extremely flexible, and it is possible to effectively suppress the problem that stress is concentrated in a specific location and the foundation 3 is destroyed. Furthermore, since the square material 5 that constitutes the retaining wall body 1 is a standard product and its dimensions are constant for each type, it is possible to mass-produce the foundation blocks 2 that conform to the standards of the square material 5 to be used in advance at a factory. This eliminates the need for transporting materials to the site and constructing the foundation on site, as was the case in the past, and also reduces costs. Furthermore, since each foundation block 2 is relatively lightweight and consists of a wall-shaped block body 8 and a stone stopper 12, it is easy to transport the foundation block 2 from a factory, warehouse, etc. to a construction site. There is also the advantage of having one. In particular, if the T-shaped foundation blocks 2 are arranged in alternating directions as shown in Figure 8, a large number of them can be arranged in a narrow space, making the material transportation work for constructing the foundation 3 more efficient. can do well.

It should be noted that the present invention is of course not limited to the embodiment described above, and the block body is not limited to that of the embodiment described above, but may be made as shown in FIGS. 6 and 7, for example. That is, the size of the block body 8' of the foundation block 2' of this foundation 3', the length of the support surface 7', the position and number of fixing holes 9', and the stopper 1.
The size of the retaining wall 1' and the size of the chest foot 12' are different depending on the thickness of the retaining wall main body 1', that is, the number of frames in the front and back direction and the position and number of reinforcing bars 6'. 4' may be constructed. In addition, the inclination angle of the support surface is not limited to that of the above embodiment, and may be any angle at which the retaining wall body should be inclined, and if there is no need to incline the retaining wall body, it may be a horizontal plane with an inclination angle of zero. It may be hot. Further, the stopper is not limited to that of the embodiment described above, and may be any stopper as long as it can lock and position the square member.

(f) Effects As explained above, in this invention, the T-shaped foundation blocks in plan view are arranged so as not to be mutually constrained to increase the flexibility of the whole, so that vibrations such as earthquakes can be avoided. Moreover, the basic blocks can be mass-produced in advance at a factory and can be transported efficiently.
It is possible to provide a foundation for a retaining wall that can reduce the cost required for construction because it does not require much time and effort to construct on-site.

[Brief explanation of drawings]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a front view, FIG. 2 is a plan view, FIG. 3 is a perspective view, and FIG. 4 is a front view showing the state of use. FIG. 5 is a plan view of the same. FIGS. 6 and 7 show other embodiments of the present invention, with FIG. 6 being a front view showing the state of use, and FIG. 7 being a plan view of the same. FIG. 8 is an explanatory diagram showing the manner in which the basic block is transported. 1, 1'... retaining wall main body, 2, 2'... foundation block for retaining wall, 3, 3'... foundation, 4, 4'... retaining wall,
5... Square material, 6, 6'... Reinforcing bar, 7, 7'... Support surface, 8, 8'... Block body, 9, 9'... Fixing hole, 11, 11'... Stopper, 12 ,1
2'...Kuriishi tome, A...Kuriishi.

Claims (1)

[Scope of utility model registration request] A straight-walled block main body that abuts and supports the square material with a support surface provided on the upper edge, and a fixing device provided at a predetermined position on the support surface of this block body for inserting and fixing reinforcing bars that connect the square material. a hole, a stopper provided at the rear end of the support surface for locking and positioning the square member, and a wall-shaped chestnut stopper provided substantially orthogonally to the front end of the block body. The block main body is characterized in that a plurality of T-shaped foundation blocks in plan view, which are not provided with a stone stopper, are lined up at the rear end of the block body so that the sides of the stonework stoppers are adjacent to each other in an unconnected state. Foundation for retaining wall.