In situ reinforced structural diaphragm walls and methods of man

Details In situ reinforced structural diaphragm walls and methods of man In situ reinforced structural diaphragm walls and methods of man

1988-08-24

1990-03-20

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Chemical

405269, 405241, E02D 518

Patent

active

049096753

ABSTRACT:
The present invention is directed to in situ structural diaphragm walls and methods for constructing such walls. The structural diaphragm walls of the present invention are comprised of a series of small and large-diameter soilcrete columns configured such that the small-diameter columns alternate with the large-diameter columns. A structural member, such as a steel I-beam, is placed within each of the small-diameter columns or within each of the large diameter columns, depending on the structural requirements of the resulting diaphragm wall.
The structural diaphragm wall is capable of withstanding the lateral forces which may be imposed by soil or water. Thus, the wall is ideally suited for construction applications when ground water must be restrained or when soil adjacent an excavation site is in danger of crumbling because of the loss of the lateral support which existed prior to excavation.
The method of constructing the structural diaphragm wall involves employing a three-shaft auger machine to construct a series of soilcrete columns. Before the soilcrete mixture cures, the structural diaphragm wall may be aligned with the column and directed into the column, usually under its own weight. The soilcrete mixture is then allowed to cure, resulting in the reinforced structural diaphragm wall of the present invention.

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