METHOD FOR AMENDING BOTTOM SEDIMENT AND STRUCTURE FOR AMENDING BOTTOM SEDIMENT

摘要

PROBLEM TO BE SOLVED: To provide a means for surely and uniformly amending bottom sediment in an objective water area by using bottom sediment amendments in a closed or semi-closed water area.;SOLUTION: A method for amending bottom sediment is provided which includes a step of laying a bottom sediment amendment structure A' provided with at least a support member 1 and solid amendments 2 attached to the support member 1' at predetermined intervals and containing bottom sediment amendment components. Solid amendments 2 containing bottom sediment amendment components are attached at predetermined intervals to a support member 1 in a linear, screen-like, net-like, nearly lattice-like, or like form. The formed bottom sediment amendment structure A' is laid in a closed or semi-closed water area such as a harbor, a lake, a marsh, a tideland, a canal, or a moat. The solid amendments 2 can thus be supplied into bottom mud S1 while kept definitely distant from each other, so that bottom sediment amendment can be uniformly performed. Further, because the solid amendments 2 are fixed on the support member 1, it becomes possible to adjust the amount of the solid amendments 2 supplied into the objective water area and to eliminate the risk that the solid amendments 2 are carried away by waves, a tide, or the like or that the solid amendments 2 are moved upon e.g., digging-up.;COPYRIGHT: (C)2013,JPO&INPIT