Construction method of subsidence measures ground and shake narrowing subsidence measures ground crowded rock

摘要

PROBLEM TO BE SOLVED: To provide ground as a countermeasure against shaking-down settlement, which can keep solidification material milk consumption low and which can effectively suppress the shaking-down settlement of an area peripheral to an unliquefied layer structure and ground on the periphery of it, and a method for creating the ground as the countermeasure against the shaking-down settlement.;SOLUTION: A plurality of pile-type improvement bodies 1 are created in an unliquefied layer S12 of ground S1 as a countermeasure against shaking-down settlement. The pile-type improvement bodies 1 reach a base layer S11 over the unliquefied layer S12. A plurality of reinforcing improvement bodies 2 separated from one another in a depth direction are formed between the adjacent pile-type improvement bodies 1. The reinforcing improvement bodies 2 connect the adjacent pile-type improvement bodies 1 together.;COPYRIGHT: (C)2012,JPO&INPIT