COLLAPSE PREVENTION CONSTRUCTION METHOD FOR DIKE

摘要

PROBLEM TO BE SOLVED: To provide a collapse prevention construction method for a dike for preventing an underground obstacle from affecting construction work, dispensing with a feasibility study to be conducted prior to construction work, and applicable to almost all the dikes of rivers.;SOLUTION: Vertical holes having fixed depth are drilled at an interval set in a core part of a dike body of a river by a full turn all-casing drill, a tremie pipe is inserted into all-casing in the vertical hole, and cement improved agent is charged through an opening part at its upper end to construct a first pile. A third pile is constructed in a central part between the first pile and a second pile. A fourth pile overlapping on each pile adjacent to a central part between the first pile and the third pile partially is constructed. Lastly, a fifth pile overlapping on each pile adjacent to a central part between the second pile and the third pile partially is constructed to construct a cast-in-place pile wall in the ground.;COPYRIGHT: (C)2007,JPO&INPIT