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Title:
BOTTOM SLAB STRUCTURE OF FINAL DISPOSAL SITE
Document Type and Number:
Japanese Patent JP2015077540
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a bottom slab structure of a final disposal site that can surely prevent leakage of retained water from the inside of the final disposal site and infiltration of groundwater into the inside.SOLUTION: A bottom slab structure 20 which closes a bottom of a final disposal site is composed of a first crushed stone layer 21 installed on the ground GR, a first waterproof unit 22, a second crushed stone layer 23, a second waterproof unit 24, and a protective sand layer 25 in this order from the ground GR side. Each of the first and second waterproof units 22, 24 is formed by laminating a water-impervious sheet 22b and a protective mat 22a. The first crushed stone layer 21 is provided with a water collecting perforated pipe 26 for water discharge that collects and discharges groundwater. The second crushed stone layer 23 is provided with a water collecting perforated pipe 27 for inspection that collects water inside the final disposal site.

Inventors:
YAMAGUCHI TOKICHIRO
Application Number:
JP2013215100A
Publication Date:
April 23, 2015
Filing Date:
October 15, 2013
Export Citation:
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Assignee:
FUJI CORPORATION:KK
International Classes:
B09B1/00; E02D27/32
Attorney, Agent or Firm:
特許業務法人創成国際特許事務所