Imperviousness earth retaining wall and its underground water flow conservation methods with the groundwater flow conservation function

摘要

PROBLEM TO BE SOLVED: To provide an impervious earth-retaining wall with a function of maintaining underground water flow.;SOLUTION: This impervious earth-retaining wall executed for the construction of an underground open-cut structure is constituted of a steel pipe sheet pile with a gate for allowing the passing of underground water flow at an optional time at a part corresponding to the underground water flow.;COPYRIGHT: (C)2002,JPO