PURIFYING METHOD FOR DISCHARGED WATER IN SOIL IMPROVEMENT EXECUTING AREA

摘要

PROBLEM TO BE SOLVED: To realize a method for easily and readily purifying the discharged water of work to the degree causing no problem by utilizing the characteristic of soil improving method. ;SOLUTION: A sand mat 2 is laid, vertical drains 4 are formed at prescribed intervals in the ground, and a banking 5 is formed thereon to add a load, thereby promoting the draining of a layer to be consolidated. This method is applied to a soil improvement executing area 10 having a pumping equipment 6 communicating with the sand mat 2 on the banking 5 side. When a work-completed section 10A where the soil improvement is ended, and the banking 5 is removed, and an under-working section 10B where the banking 5 is still left are present in the executing area, a storage part 8 is formed on the sand mat 2 side in the work-completed section 10A adjacent to the under-working section 10B to put the discharge water treatable by filtration in the storage part 8, whereby it is naturally penetrated through the sand mat 2, and recovered from the pumping equipment 6.;COPYRIGHT: (C)1999,JPO