Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1998-09-23
1999-06-15
Graysay, Tamara
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
405266, 405274, 527414, 5274216, E02D 302, E02D 502, C09K 1700, E04B 100
Patent
active
059115459
ABSTRACT:
A method for stabilizing and repairing whereby components are mixed to form an expandable foam which is injected under pressure in an expanded state behind or into the backfill material of an existing sheetpile seawall. Upon expansion, the foam displaces water and fills and seals cracks in the seawall and fills scoured voids in the backfill material. The method is also applied to rock revetment seawalls whereby the unexpanded foam is injected under pressure into the rock revetment. Upon expansion, the foam displaces water and fills and seals spaces in the rock revetment and interlocks the rock revetment.
REFERENCES:
patent: 3783624 (1974-01-01), Nakade et al.
patent: 4567708 (1986-02-01), Haekkinen
patent: 4744193 (1988-05-01), Hatsuzaki et al.
patent: 5253957 (1993-10-01), Fujikawa
Graysay Tamara
Lizarrga Juan J.
Singh Sunil
LandOfFree
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