| 摘要 |
PROBLEM TO BE SOLVED: To provide a precast retaining wall which enables the integral construction of an L-shaped retaining wall and a side ditch. SOLUTION: In this precast retaining wall 1, a side ditch portion 3 is integrally formed on the lower outer surface of an L-shaped retaining wall portion 2. Since this enables the concurrent and integral construction of the L-shaped retaining wall and the side ditch, a process can be shortened. Labor for foundation work for installing the side ditch is eliminated, and the risk of the subsidence of the side ditch 3 is eliminated. Since the side ditch portion 3 is formed integrally with a lower outer surface of the L-shaped retaining wall portion 2, stabilization against falling/sliding can be obtained. A bottom wall 6 of the side ditch portion 3 is formed on a portion where a bottom wall 5 of the L-shaped retaining wall portion 2 is elongated. Furthermore, a drain hole 9, which faces the side ditch portion 3 through inner and outer surfaces, is formed in the L-shaped retaining wall portion 2. COPYRIGHT: (C)2008,JPO&INPIT
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