PLASTIC-BOARD DRAIN MATERIAL, AND DEVICE FOR PULLING OUT THE DRAIN MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a plastic-board drain material which can be suitably removed from ground after the ground is improved by a consolidation method, and a device for pulling out the drain material. SOLUTION: The plastic-board drain material comprises: plastic drain members 11 and 12 where permeable filters 21 and 21 are fixed on the front and back sides of a water-passing-groove-forming core material 20 with water passing grooves 18 and 19 continuously provided in longitudinal directions on the front and back sides, in such an arrangement as to close opened parts of the grooves 18 and 19; and a thin strip-like or linear tensile reinforcing material 13. The plastic-board drain material can be removed from the improved ground by integrating the material 13 with the drain members 11 and 12 along the longitudinal direction. COPYRIGHT: (C)2006,JPO&NCIPI