Method for increasing the end-bearing capacity of open-ended pil

Details Method for increasing the end-bearing capacity of open-ended pil Method for increasing the end-bearing capacity of open-ended pil

1990-02-23

1992-09-08

Taylor, Dennis L.

Hydraulic and earth engineering

Foundation

Columnar structure

405227, 405231, 405249, E02D 522, E02D 566

Patent

active

051452847

ABSTRACT:
A method for increasing the end-bearing capacity of an open-ended pile is disclosed. The method comprises first determining the quantity of granular material necessary to insure full mobilization of the available capacity of the soil at the tip of the pile. The granular material is then inserted within the pile on top of the soil column, thereby causing the column of granular material to plug or lock-up within the pile during transient loading and thus mobilize the available capacity.

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Daniel L. Borin, "Auger Injected Concrete Piles", Jun. 1980, p. 55, Consulting Engineer, vol. 44, No. 6.
Neely et al., "Pressure Injected Footings in Piedmont Profiles", pp.40 & 41, Engineering Societies Library.
McAnally and Douglas, "The Design of Frankipiles in Clays", p. 402, Fourth Australia--New Zealand Conference on Geomechanics, Perth, 14-18, May 1984.
Randolph, M. F., "Capacity of Piles Driven into Dense Sand", Cambridge University Engineering Department, Jun. 1985.

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