Method of constructing a compacted granular or stone column in s

Details Method of constructing a compacted granular or stone column in s Method of constructing a compacted granular or stone column in s

1981-01-23

1983-08-09

Taylor, Dennis L.

Hydraulic and earth engineering

Foundation

Columnar structure

405233, 405232, E02D 700

Patent

active

043975887

ABSTRACT:
Compacted granular or stone columns are constructed in soil to increase the load-bearing capacities of the native soil. The upper portion of the compacted granular column is provided with a rigid central core such that vertical loads imposed on the composite column are transferred to a deeper level on the compacted column where the column operates more efficiently. A probe is centrally penetrated downwardly into the compacted granular column, and the resulting cavity is filled with cementitious grout to form a solid core after hardening. The grout may be injected into the cavity so formed in the compacted column at the bottom of the probe as the probe is being withdrawn in predetermined quantities metered in synchronization with the rate of withdrawal of the probe from the core cavity.

REFERENCES:
patent: 1157442 (1915-10-01), Stewart
patent: 1764948 (1930-06-01), Frankignoul
patent: 2667749 (1954-02-01), Stuerman
patent: 2718761 (1955-09-01), Steuerman
patent: 3130552 (1964-04-01), Bodine
patent: 3772892 (1973-11-01), Ogawa
patent: 3858398 (1975-01-01), Van Weele
patent: 4045966 (1977-09-01), Rusche
patent: 4126007 (1978-11-01), Mars
"Soil Improvement-History; Capabilities and Outlook," Report by the Committee on Placement and Improvement of Soils of the Geotechnical Engineering Division of the American Society of Civil Engineers, Feb. 1978.

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