| 简介 |
PURPOSE : A method for treating crushed rocks generated during public works is provided to prevent acidification of soil or emission of heavy metals generated when acidified effleunt flows into a river by basically blocking a contact of crushed rocks such as pyrite with water and air.CONSTITUTION : A method for treating crushed rocks comprises : a step(S201) of stacking a general soil-forming layer on a lowermost layer of an area at which public works are carried out; a step(S202) of installing a drainage device at an outer side of the general soil-forming layer to drain effluent; steps(S203, S204) of installing a first earth-and-sand dike on an upper part of the outer side of the general soil-forming layer, and spreading a waterproof sheet on an upper part of the first earth-and-sand dike; a step(S205) of stacking a first calcined dolomite layer on an upper part of the general soil-forming layer to drain the neutralized effluent by neutralizing the effluent; a step(S206) of installing a second earth-and-sand dike on an upper part of an outer side of the first calcined dolomite layer; a step(S207) of stacking a first crushed-rock layer on the upper part of the first calcined dolomite layer; a step(S208) of stacking a second calcined dolomite layer on an upper part of the first crushed-rock layer; and a step(S210) of stacking a road layer and a pavement layer on an upper part of an uppermost layer.? KIPO 2008 |
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