JPH0742381U - Large retaining wall block - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a large retaining wall block that is firmly fixed to the base support surface 5 without sliding. [Structure] In a large retaining wall block a in which a retaining wall 2 is erected on a front portion of a base plate 1, a concrete pouring hole 3 is provided in the base plate 1, and a lower surface of the base plate 1 is directed to a rear side of the retaining wall 2. A large retaining wall block provided with a retaining structure for preventing the retaining wall block a from sliding forward due to earth pressure received from the retaining wall block a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a large retaining wall block that is firmly fixed to the base bearing surface without sliding.

[0002]

[Problems to be solved by conventional techniques and devices]

 When a conventional large-sized retaining wall block was erected, a foundation was made of concrete, the retaining wall blocks were sequentially arranged on it, and the retaining wall blocks were placed on the base support surface so that the front surface was flush.

Recently, the size of the retaining wall block has gradually increased, and a large one having a height of several US has been widely used.

Since such a large retaining wall block is large in size, the earth pressure received from the rear also becomes large, and since the retaining wall block is pressed forward by the earth pressure, there is a drawback that it gradually slides forward.

The present invention provides a large retaining wall block that solves these drawbacks.

[0006]

[Means for Solving the Problems]

 The gist of the present invention will be described with reference to the accompanying drawings.

In a large retaining wall block a in which a retaining wall 2 is erected on a front portion of a base plate 1, a concrete pouring hole 3 is provided in the base plate 1, and a lower surface of the base plate 1 is directed to a rear side of the retaining wall 2. The large retaining wall block is characterized in that a retaining structure is provided for preventing the retaining wall block a from sliding forward due to earth pressure received from the retaining wall block a.

[0008]

[Operation] The retaining wall block a is placed on the base bearing surface 5 with a crane or the like, and concrete is concretely injected into the gap 6 formed between the base bearing surface 5 and the lower surface of the base plate 1 of the retaining wall block a. The locking structure 4 on the lower surface of the base plate 1 poured from the hole 3 prevents the retaining wall block a from sliding forward.

[0009]

【Example】

 The drawings show a preferred example of the present invention. In a large retaining wall block a in which a retaining wall 2 is erected on a front portion of a base plate 1, a rear wall direction of the retaining wall 2 on the lower surface of the base plate 1 is shown. A retaining structure 4 is provided to prevent the retaining wall block a from sliding forward due to the earth pressure received from the.

In this embodiment, when the locking structure 4 on the lower surface of the base plate 1 of the retaining wall block a is formed with several ridge projections 7 in a direction orthogonal to the sliding direction of the retaining wall block a. Is illustrated.

Further, a plurality of concrete injection holes 3 bored in the base plate 1 of the retaining wall block a are bored so that the gap 6 is filled with concrete.

The retaining wall block a is placed on the base bearing surface 5, and concrete is poured from the concrete pouring hole 3 into the gap 6 formed between the base bearing surface 5 and the lower surface of the base plate 1 of the retaining wall block a. When the concrete is solidified, a number of projections 7 formed on the lower surface of the base plate 1 of the retaining wall block a bite into the solidified concrete to integrally fix the retaining wall block a on the base bearing surface 5. .

The locking structure 4 due to the biting of the unevenness prevents the retaining wall block a from sliding forward.

The ridge projection 7 can be easily manufactured by designing and placing it on the mold of the retaining wall block a so that the projection is produced.

The locking structure 4 may be designed in any shape and structure as long as it is a structure capable of preventing the retaining wall block a from sliding forward.

In the figure, reference numeral 8 is a protrusion provided at the center of gravity, 9 is a fine adjustment screw rod for adjusting the height, and 10 is a bearing nut cylinder thereof, and concrete installation is performed after maintaining and adjusting the correct installation state.

[0017]

[Effect of device]

 Since the present invention is configured as described above, when a large retaining wall block is formed by arranging a large retaining wall block in parallel, the retaining wall block is displaced due to the earth pressure received from the back side of the retaining wall. It becomes a practical large retaining wall block that can be reliably prevented by the locking structure formed on the bottom surface of the base plate of the block.

[Brief description of drawings]

FIG. 1 is a side view showing an example of the present embodiment.

FIG. 2 is a bottom view showing an example of the present embodiment.

[Explanation of symbols]

 1 Base plate 2 Retaining wall 3 Concrete injection hole a Retaining wall block

Claims (1)

[Scope of utility model registration request] 1. A large retaining wall block in which a retaining wall is erected on the front portion of a base plate, in which a concrete injection hole is provided in the base plate, and earth pressure is applied to the lower surface of the base plate from the back side direction of the retaining wall. A large retaining wall block that is provided with a locking structure that prevents the retaining wall block from sliding forward.