| 摘要 |
<P>PROBLEM TO BE SOLVED: To construct a steel wall having both high rigidity similar to that of a steel pipe sheet pile wall and high cut-off performance similar to that of a steel sheet pile wall, by a hydraulic pressure press-in construction method or a rotation press-in construction method without the need for increasing in size an existing construction machine. <P>SOLUTION: A steel wall 3 in which steel pipes 2 are provided so as to contact a steel pipe 1 in such a manner that longitudinal directions of the steel pipes 2 are along a longitudinal direction of the steel pile 1, is constructed by taking reaction force from the steel pile 1 constructed in advance and performing hydraulic press-in or rotary press-in of the steel pipe 2. In this case, the steel pile 1 and the steel pipes 2 may be connected with each other at their head portions. Otherwise, the steel wall 3 may be constructed by taking reaction force from the steel pile 1 similarly, performing hydraulic press-in or rotary press-in of the steel pipe 2, juxtaposing the steel pile 1 and the steel pipes 2 at an interval therebetween, and connecting their head portions with each other. <P>COPYRIGHT: (C)2013,JPO&INPIT |
