The edge strip of the thickness configuration mannered null excavation remaining soil layer of remaining

摘要

PROBLEM TO BE SOLVED: To provide a surplus soil disposal structure which can be adopted without limiting to a land form, and can neutralize effectively acid water oozing out from excavating shear, and a method of setting the layer thickness of a neutralizing layer.;SOLUTION: The invention relates to the surplus soil disposal structure 1 comprising the neutralizing layer 3 covering the side surface and the bottom face of an excavation surplus soil layer 2 and neutralizing acid water oozing out from the excavation surplus soil layer 2, and the method of setting the layer thickness of the neutralizing layer 3. The neutralizing layer 3 is constituted by a neutralizing material containing mainly calcium carbonate, the residence time required for neutralizing acid water is assured, and the layer thickness in which acid water does not ooze outside is set.;COPYRIGHT: (C)2011,JPO&INPIT