Apparatus and method for constructing compacted granular or...

Details Apparatus and method for constructing compacted granular or... Apparatus and method for constructing compacted granular or...

E - Fixed Constructions

02

D

E02D 3/08 (2006.01) E02B 3/00 (2006.01) E02D 3/10 (2006.01) E02D 7/00 (2006.01)

Patent

CA 2081251

ABSTRACT OF THE DISCLOSURE Compacted granular or stone columns are constructed in soil to increase the load-bearing capacities of the native soil. An elongated hollow tubular member is penetrated down into the soil to a predetermined depth and then the granular material or stone for constructing the column is fed down through this member and out the lower end thereof where it is then driven outwardly in a radial direction by an impeller which is exposed, at least in part, at the lower end of the tubular member, as the hollow tubular member is either penetrating or being withdrawn from the soil at a predetermined rate to thereby forceably compact this granular or stone material in a substantially radial direction to construct a stone column. Sufficient forces may be applied by the impeller to the granular or stone material to fracture the surrounding soil.

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