In-situ soil stabilization method and apparatus

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

E - Fixed Constructions

02

D

E02D 3/11 (2006.01)

Patent

CA 2129103

A method and apparatus for in-situ solidifying and stabiliz- ing a mass of unstable foundation soil (A, B) utilizes a plasma arc torch (30). The torch is inserted into a drilled and cased hole (22) 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 (26) while more remote sections (28, 29) are baked to a brick-like con- sistency or dried and strengthened. Upon cooling, the central melt- ed soil material cools to a hard, vitrified column (24) with physical properties equivalent to a hard, dense rock. Variations of the meth- od apply to a variety of construction support problems and land- slide remediation problems.

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