INSTALLATION METHOD FOR PRECAST PLATE OF FIRST STEP IN SLOPE FACE REINFORCING CONSTRUCTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a slope face reinforcing construction using an inverted lining method, in which a precast plate installed in a preceding step does not subside due to excavation in a following step.;SOLUTION: A slope face reinforcing construction method includes the following steps of: excavating and forming a step part 11 on which a precast plate body 1 is mounted; driving a reinforcement pile 12 into the step part 11; installing the precast plate body 1 on the step part 11; drilling a natural ground M through a through hole 5 of each precast plate body 1; attaching a washer 16 to a rod-like reinforcement material 15 inserted into a drilled part 14 and screwing and fastening the rod-like reinforcement material 15 by a nut 17; injecting a grout material into the drilled part 14 to form a support pile body 18; and injecting a backfill material into a clearance 13 between a rear face of the precast plate and the mounting surface 11a.;COPYRIGHT: (C)2013,JPO&INPIT