Volume method of increasing the waste disposal site, and for impervious layer forming method

摘要

PROBLEM TO BE SOLVED: To provide a technique to increase the capacity of a waste disposal station by forming a new recessed surface on a recessed surface.;SOLUTION: A new slope 42 of a newly formed slope is provided to be extended on the upper side of the slope 12 of the recessed surface 10 to which waste is disposed to form a new bottom surface 41 which is the upper part of the disposed waste 30 and a new recessed surface 40 having the new slope 42 (figure (b)). Next, rubber 60 having water barrier property and viscosity is arranged on the lower side of the new slope 42 (figure (c)). A plurality of net like supporting materials 60 are placed so that the end parts are overlapped on the whole surface of the new bottom surface 41 (figure (d)). A water barrier material 70 containing bentonite is arranged on the supporting material 60 (figure (e)). Finally a water barrier sheet 80 is arranged so as to cover the whole surface of the new slope 42.;COPYRIGHT: (C)2004,JPO&NCIPI