| 摘要 |
PROBLEM TO BE SOLVED: To provide a soil covering structure in a waste final disposal plant capable of certainly achieving air permeability and waterproofness by a simple structure, wherein only a sheet having a capillary barrier function is laid, in a case that a surface bed is formed of two beds, that is, a fine-grained soil bed and a coarse-grained soil bed, capable of controlling the penetration amount of rainwater into a lower waste bed by further imparting a water passing function to the sheet capable of using soil obtained on a spot in soil covering and obtaining stable soil covering. SOLUTION: In the soil covering structure of the waste final disposal plant for forming the surface bed such as soil covering, or the like, so as to include a water-permeable part and a water barrier part when the surface bed is formed on the surface of waste used for reclaiming a landfill site of the waste final disposal plant, the surface bed is constituted of the coarse-grained soil bed 2 formed on a waste bed 1 so as to provide a gradient, the air-permeable waterproof sheet 3 laid on the coarse-grained soil bed 2 and provided with a water passing part formed of a large number of studded small holes 5 and the fine-grained soil bed 4 formed on the air-permeable waterproof sheet 3. COPYRIGHT: (C)2006,JPO&NCIPI
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