| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for reducing the friction resistance force of a wall body against a core material to be extracted during extracting the core material embedded in the wall body from the wall body formed of a cement-based solidification material. <P>SOLUTION: The construction method for an earth retaining wall 1 whose wall body 2 is formed of the cement-based solidification material and in which steel core materials 3 are embedded in the wall body 2, includes the steps of: connecting a negative electrode of a DC power supply 14 to the core material 3 to be extracted and a positive electrode of the DC power supply 14 to the other core material or a steel member 11 embedded in a ground; and using the DC power supply 14 for applying DC voltage between the core material 3 to be extracted and the other core material 3 or the steel member 11 before the cement-based solidification material is hardened. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
