Hydraulic and earth engineering – Drainage or irrigation
Patent
1989-11-08
1991-10-22
Corbin, David H.
Hydraulic and earth engineering
Drainage or irrigation
52167R, 521695, E02B 1100, E21D 914
Patent
active
050590634
ABSTRACT:
A conglomerate layer is formed horizontally on a base of ground which has a high water permeability and easily liquefies. A bottom plate is formed on the conglomerate layer to construct the underground structure thereon. One or more drainpipes are extended upwardly from the conglomerate layer through the bottom plate for draining excessive pore water in the ground.
REFERENCES:
patent: 2154233 (1939-04-01), Donaldson
patent: 2219710 (1940-10-01), Litz et al.
patent: 3124935 (1964-03-01), Foster
patent: 4271648 (1981-06-01), Johnson
patent: 4298294 (1981-11-01), Zimmerman
patent: 4843786 (1989-07-01), Walkinshaw et al.
Ejiri Joji
Endoh Tamotsu
Goto Yozo
Hayakawa Makoto
Koide Tadao
Chubu Electric Power Company, Incorporated
Corbin David H.
Ohbayashi Corporation
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