Retaining wall block unit consists of prefab blocks with field-adjustable length and modular gravity retaining wall structure using it

摘要

The present invention relates to an on-site length-adjustable retaining wall and a retaining wall unit using a prefabricated block. In the field length-adjustable retaining wall unit using the prefabricated block of the present invention, a flat plate-shaped front part 10 is formed on one side, and two stems extending side by side from the front part 10 to the rear side are formed. , A first inward protrusion 40 protruding in a direction opposite to each other is formed in the middle portion of the stem, and a first end protrusion 70 protruding in the left and right direction is formed at the rear end of the stem, and the first One side block (A) in which a first fitting space 71 is formed between the inward protrusion 40 and the first end protrusion 70; A flat plate-shaped rear surface portion 80 is formed on one side, and two stems extending side by side from the rear surface portion 80 are formed, and a second inward protrusion protruding in the opposite direction to each other in the middle portion of the stem is formed. 110 is formed, and a second end protrusion 120 fitted into the first fitting space 71 is formed at the rear end of the stem, and the second end protrusion 120 and the second inward protrusion ( 110) is formed between the second fitting space 121 into which the first end protrusion 70 is fitted, the length in the front and rear direction is shorter or longer than that of the one side block (A), and the other side block (B); including; is composed According to the present invention, two blocks having the same shape from the front to a part of the stem are prepared, but the rear side of the two blocks are formed with protrusions and grooves that are coupled to each other to form a longer length of the lower end of the retaining wall. The length of the lower part of the retaining wall can be easily formed by combining the two blocks without installing a new block or connecting a new block with a completely different shape from the basic block.