Installation of expanded base piles

Details Installation of expanded base piles Installation of expanded base piles

1974-02-19

1976-07-27

Shapiro, Jacob

61 5352, 61 56, 61 565, 52294, E02D 530, E02D 548

Patent

active

039712273

ABSTRACT:
A massive precast pile tip is provided with a tubular sleeve which extends into the tip to tightly encircle a core of the tip mandrel. The sleeve strengthens the tip material in the core region to improve its driving strength. A mandrel fits into the sleeve and drives the tip. Concrete is then poured into a tubular stem which extends up from the sleeve to the surface of the earth after the tip is driven.

REFERENCES:
patent: 1778925 (1930-10-01), Thornley
patent: 2996887 (1961-08-01), Rice et al.
patent: 3131543 (1964-05-01), Dougherty
patent: 3751931 (1973-08-01), Merjan
patent: 3779025 (1973-12-01), Godley et al.
patent: 3875752 (1975-04-01), Merjan

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