Title:
BACKFILLING MATERIAL AND EMBEDDING STRUCTURE FOR UNDERGROUND CONSTRUCTION OBJECT
Document Type and Number:
Japanese Patent JP3454757
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make a compaction work such as rolling unnecessary by recycling construction slurry containing bentonite.
SOLUTION: A culvert box 1 is installed in a space excavated by preventing the failure of nearby ground G by means of a landslide protection wall, in the upper space, inorganic construction sludge containing no harmful matters while containing bentonite and earth are mixed together, and a backfilling material 3 having an uniaxial compression strength of higher than 0.5 kg/m2 is poured by a liquefaction method. Even when the space is narrow and complicated due to the fluidity of the backfilling material 3, an embedding structure for a homogeneous underground construction object can be built and also a water passage 4 can be provided in the backfilling material 3, and the flow of groundwater is not disturbed even when the coefficient of permeability decreases as the backfilling material 3 is solidified and becomes a non-water- permeable layer.
Inventors:
Masataka Hanashima
Masakazu Nakamura
Masami Oho
Masakazu Nakamura
Masami Oho
Application Number:
JP21387199A
Publication Date:
October 06, 2003
Filing Date:
July 28, 1999
Export Citation:
Assignee:
Masataka Hanashima
Masakazu Nakamura
Limited company Najima Sangyo Construction
Masakazu Nakamura
Limited company Najima Sangyo Construction
International Classes:
E02D29/00; E02B9/06; E02D3/12; E02F5/10; F16L1/038; (IPC1-7): E02D29/00; E02B9/06; E02D3/12; E02F5/10; F16L1/038
Domestic Patent References:
| JP7224447A | ||||
| JP7300845A | ||||
| JP5277458A |
Attorney, Agent or Firm:
Hisashi Kato
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