In-situ soil stabilization method and apparatus

Details In-situ soil stabilization method and apparatus In-situ soil stabilization method and apparatus

1992-01-29

1993-01-26

Corbin, David H.

Hydraulic and earth engineering

Temperature modification or control of earthen formation

Heating

405229, 405234, 405258, E02D 311

Patent

active

051817977

ABSTRACT:
A method and apparatus for in-situ solidifying and stabilizing a mass of unstable foundation soil utilizes a plasma arc torch. The torch is inserted into a drilled and cased hole to a selected depth in a subterranean unstable soil layer and the torch is energized. The intense heat generated by the torch melts the soil material close to the hole and forms a pool of melt while more remote sections are baked to a brick-like consistency or dried and strengthened. Upon cooling, the central melted soil material cools to a hard, vitrified column with physical properties equivalent to a hard, dense rock. Variations of the method apply to a variety of construction support problems and landslide remediation problems.

REFERENCES:
patent: 3293863 (1966-12-01), Cox et al.
patent: 4376598 (1983-03-01), Brouns et al.
patent: 5004373 (1991-04-01), Carter

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