| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel earth retaining impervious wall construction method for constructing an earth retaining impervious wall exceeding limit length in a steel sheet pile pressing-in construction method by use of a previously digged hole together and taking restoration of a subterranean stream into account and to provide the earth retaining impervious wall formed by the method. SOLUTION: In this earth retaining impervious wall construction method for constructing the earth retaining impervious wall composed of a impervious zone Za in a lower end part and a pile soil pressure impervious zone Zb in its upper part, a process for forming a soil mortar column in a lower end part of a digged hole by digging the ground and a process for back-filling sifted soil of digged soil at construction site into a digged hole on the soil mortar column are sequentially repeated to form the continuous impervious wall 1 in the impervious zone Za. Next, a steel sheet pile 3 is pressed into an upper part of the soil mortar column by passing through a back-filled part to form the continuous earth retaining impervious wall 4 in the pile soil pressure impervious zone Zb. COPYRIGHT: (C)2005,JPO&NCIPI
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