Side cutting blades for multi-shaft auger system and improved so

Details Side cutting blades for multi-shaft auger system and improved so Side cutting blades for multi-shaft auger system and improved so

1989-08-02

1990-03-06

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405241, 405269, 405233, E02D 1713, E02D 518

Patent

active

049061429

ABSTRACT:
The present invention is directed to side cutting blades for use with multi-shaft auger machines which mix soil with a chemical hardener in situ to form soilcrete columns. The side cutting blades includes two parallel blades which cut the soil between the adjacent columns along planes approximately tangential to the periphery of adjacent columns. As the soil is cut by the cutting blades, the soil is thoroughly mixed with a chemical hardening agent. Adjacent soilcrete columns are integrally connected by substantial column overlap without physically moving the columns closer together or performing multiple borings on the soil adjacent to the columns formed by the initial boring.
The side cutting blades are particularly suited for use with a multi-shaft auger machine which has minimal column overlap. A multi-shaft auger machine equipped with side cutting blades may be used to construct continuous in situ wall formations which are homogeneous in composition and have a minimum thickness approximately equal to the diameter of the auger shafts.

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