Underground barrier construction apparatus with soil-retaining s

Details Underground barrier construction apparatus with soil-retaining s Underground barrier construction apparatus with soil-retaining s

1996-10-04

1998-08-04

Suchfield, George A.

Hydraulic and earth engineering

Earth treatment or control

Chemical

37462, 405129, 405240, 405268, E02D 312, E02D 518, E02F 506

Patent

active

057884226

ABSTRACT:
An apparatus for building a horizontal underground barrier by cutting through soil and depositing a slurry, preferably one which cures into a hardened material. The apparatus includes a digging means for cutting and removing soil to create a void under the surface of the ground, a shield means for maintaining the void, and injection means for inserting barrier-forming material into the void. In one embodiment, the digging means is a continuous cutting chain. Mounted on the continuous cutting chain are cutter teeth for cutting through soil and discharge paddles for removing the loosened soil. This invention includes a barrier placement machine, a method for building an underground horizontal containment barrier using the barrier placement machine, and the underground containment system. Preferably the underground containment barrier goes underneath and around the site to be contained in a bathtub-type containment.

REFERENCES:
patent: 4092536 (1978-05-01), Smith
patent: 4697953 (1987-10-01), Nussbaumer et al.
patent: 4877358 (1989-10-01), Ressi Di Cervia
patent: 5118230 (1992-06-01), Justice
patent: 5246312 (1993-09-01), Taki
patent: 5311683 (1994-05-01), Camiller
patent: 5542782 (1996-08-01), Carter, Jr. et al.
patent: 5599139 (1997-02-01), Chenning et al.

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