Boring-injection device, method for improving ground by means of

Details Boring-injection device, method for improving ground by means of Boring-injection device, method for improving ground by means of

1983-06-27

1985-10-08

Husar, Cornelius J.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405266, E02D 312, E02D 518

Patent

active

045457026

ABSTRACT:
A boring-injection device comprises a fluid supplying hollow rod, a fluid discharge portion at the lower end of the rod, and a packer element inflatable from the rod to seal a space between the rod and a borehole wall at a desired depth position. The rod is surrounded by a sheath so that the packer element and fluid discharge portion can be protruded out of and retracted within the sheath in a body. They are retracted during the boring operation and protruded during injecting or investigating operation. The device can be used for practising a method of ground improvement or a method of ground investigation.

REFERENCES:
patent: 3035440 (1962-05-01), Reed
patent: 3442122 (1969-05-01), Broise et al.
patent: 3771360 (1973-11-01), Prats
patent: 3949561 (1976-04-01), Chapman
patent: 4031971 (1977-06-01), Miller
patent: 4302132 (1981-11-01), Ogawa et al.
patent: 4309129 (1982-01-01), Takahashi
patent: 4326409 (1982-04-01), Hughes
patent: 4398416 (1983-08-01), Nolte
patent: 4424859 (1984-01-01), Sims et al.

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