BANK REINFORCEMENT DRAIN CONSTRUCTION METHOD AND BANK REINFORCEMENT DRAIN STRUCTURE

摘要

PROBLEM TO BE SOLVED: To prevent back slope end from collapse by protecting it from the entrance of cars in a back reinforcement drain construction method.;SOLUTION: A drain conduit block 32 is provided to separate a bank 2 from a road 5, and a lid block 31 is removably placed on the drain conduit block 32. Thus a bank foot waterway structure 3 is constructed. The bank foot waterway structure protrudes above the road 5. Road-side water permeation holes 31e are formed on the front surface of lid block 31 and top-side water permeation holes 31b are formed on the top surface 31a of lid block 31. The front surface 31c of lid block 31 is inclined in its upper part so as to retreat toward the bank 2 and the front surface of lid block 31 is decorated with a concavo-convex design.;COPYRIGHT: (C)2005,JPO&NCIPI