Multipoint grouting method and apparatus therefor

Hydraulic and earth engineering – Earth treatment or control – Chemical

Reexamination Certificate

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C405S269000

Reexamination Certificate

active

06874976

ABSTRACT:
A common feature of the method and apparatus for multipoint grouting resides in using a multiple injection apparatus having a plurality of unit pumps in one plant, driven independently of each other and controlled by a centralized control device. The plurality of the unit pumps are connected through ducts to a plurality of injection pipes each having an outlet, inserted in a plurality of injection points in ground. By operations of the plurality of the unit pumps, ground improving material is injected from the plurality of the outlets into the plurality of the injection points in the ground.

REFERENCES:
patent: 2560619 (1951-07-01), Wertz
patent: 4072017 (1978-02-01), Shiraki
patent: 5419632 (1995-05-01), Stephens
patent: 5905184 (1999-05-01), Carter, Jr.
patent: 6302624 (2001-10-01), Nasu et al.
patent: 6322294 (2001-11-01), Nasu et al.
patent: 6368019 (2002-04-01), Sugawa et al.
patent: 57081516 (1982-05-01), None
patent: 58204212 (1983-11-01), None
patent: 59010609 (1984-01-01), None
patent: 59027020 (1984-02-01), None
patent: 61145280 (1986-07-01), None

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