UNDERGROUND WATER FLUIDIZATION IMPEDIMENT PREVENTING METHOD, CONSTRUCTION METHOD OF WATER PASSING PART FOR PREVENTING UNDERGROUND WATER FLOW IMPEDIMENT, AND WATER PASSING PART CONSTRUCTED BY THE METHOD

摘要

PROBLEM TO BE SOLVED: To provide a flow impediment preventing method attaining inexpensive and safe construction and hardly affecting environment.;SOLUTION: Round steel pipes 9 reaching the depth deeper than a sand layer 4 are embedded in a soil cement column row wall 1 at predetermined spaces in a wall surface direction. The round steel pipes 9 and the soil cement column row wall 1 at a depth part corresponding to the sand layer 4 are formed with a plurality of slits 6 to form the water passing parts 7 allowing underground water to pass through. Underground water upstream of the soil cement column row wall 1 can thereby pass through the water passing parts 7 of the soil cement column row wall 1 and flow downstream.;COPYRIGHT: (C)2009,JPO&INPIT