BLOCKADE TREATMENT SYSTEM AND METHOD OF CONTAMINATED GROUND IN WHICH CONTAMINATED WATER IS LEAKED AND DISPERSED

摘要

PROBLEM TO BE SOLVED: To provide blockade treatment system and method of contaminated ground in which contaminated water is leaked and dispersed.;SOLUTION: Steel pipe sheet piles 3 are mutually coupled with a joint 4 and/or joint pieces 5, 5' having a water stop structure, and then they are put into ground by constant depth, therefore a water stop wall 2 having a closed loop shape in plane view is formed. Out of the steel pipe sheet piles 3, only on the steel pipe wall of the steel pipe 3a which is one outer peripheral surface divided by the joint 4 or the joint pieces 5, 5' having the water stop structure, plural water passages 6 which are opened toward an inner ground 1 surrounded by the water stop wall 2, and have an appropriate diameter and arrangement for taking contaminated water in the inner ground 1 in inside of the steel pipe 3 for storing, are disposed. The contaminated water in the inner ground 1 passes the water passages 6 and flows in inside of the steel pipe 3a forming the water stop wall 2 and is stored therein. Dipping means 15, 16, 17 for dipping the contaminated water at appropriate time are disposed, and a cleanup treatment facility 19 to which the dipped contaminated water is supplied, is further disposed.;COPYRIGHT: (C)2015,JPO&INPIT