Berkel & Company Contractors, Inc.

Brian Roblee Zuckerman

Kenneth J Blum

Robert Eric Denman

Soil inclusions () comprising an elongated, cured cementitious columnar body () are located within the soil () and include a tubular perforate structural reinforcement () embedded within the body (), with portions of the body exuded through the perforations () of the structural reinforcement (). The inclusions () are formed by driving a tubular mandrel () through vibratory means into the soil (), with a flexible, tubular, perforate reinforcement () about the exterior surface of the mandrel (). When the mandrel () is fully driven, it is withdrawn, and simultaneously cementitious material () is injected into the mandrel (). The material () exudes through the perforations () to complete the inclusion (), which is deformation compliant. The inclusions may be installed in vertical or non-vertical orientations.

Deformation-compliant rigid inclusions with embedded structural reinforcements

An auger assembly designed for creation of bores at sites where solid earth has a layer of loose overburden comprising an elongated auger shaft presenting a working end, with outwardly extending, helical fighting along at least a portion of the length of the shaft. Apparatus proximal to the working end is operable to compress the loose material as the auger assembly is rotated in a first direction, and preferably is in the form of arcuate rake structure above the working end; the auger serves to compress the loose material during rotation in the first direction until the solid earth is encountered, whereupon the auger assembly is rotated in the opposite direction to form the bore within the solid earth. The auger assembly preferably includes an upper auger section and a detachably secured lower auger bit assembly. The auger assembly is particularly useful in the formation of cast-in-place cementious piles.

Reversible displacement auger tool

An auger assembly designed for creation of bores at sites where solid earth has a layer of loose overburden comprising an elongated auger shaft presenting a working end, with outwardly extending, helical flighting along at least a portion of the length of the shaft. Apparatus proximal to the working end is operable to compress the loose material as the auger assembly is rotated in a first direction, and preferably is in the form of arcuate rake structure above the working end; the auger serves to compress the loose material during rotation in the first direction until the solid earth is encountered, whereupon the auger assembly is rotated in the opposite direction to form the bore within the solid earth. The auger assembly preferably includes an upper auger section and a detachably secured lower auger bit assembly. The auger assembly is particularly useful in the formation of cast-in-place cementious piles.

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San Francisco, CA, United States of America

Brian Roblee Zuckerman