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VERTICAL SHAFT FOR WASTE UNDERGROUND BURYING DISPOSAL FACILITY, AND VERTICAL SHAFT CONSTRUCTION METHOD OF WASTE UNDERGROUND BURYING DISPOSAL FACILITY
VERTICAL SHAFT FOR WASTE UNDERGROUND BURYING DISPOSAL FACILITY, AND VERTICAL SHAFT CONSTRUCTION METHOD OF WASTE UNDERGROUND BURYING DISPOSAL FACILITY
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机译:废物地下掩埋处置设施的竖井及竖井施工方法
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摘要
PROBLEM TO BE SOLVED: To provide a vertical shaft for a waste underground burying disposal facility, and a construction method of the vertical shaft attaining the disposal of waste in a long-term stable state by positively preventing the degradation of a back-filling material for isolating waste.;SOLUTION: The vertical shaft 20 for the waste underground burying disposal facility to which a drift for the disposal of waste is connected is extended from the ground surface toward the depth of the natural ground G. The vertical shaft 20 comprises a steel pipe 22 insert-installed in an excavated pit 5 formed by excavating the natural ground G, to partition a space 21 connected to the drift, and a back-filling filler 23 formed of a bentonite admixture 23b filled between the excavated surface 5a of the excavated pit 5 and the steel pipe 22 to fill a clearance between water permeable materials 23a to thereby degrade water permeability.;COPYRIGHT: (C)2008,JPO&INPIT
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