Large diameter tubular piles and the bedding thereof

Details Large diameter tubular piles and the bedding thereof Large diameter tubular piles and the bedding thereof

1974-07-03

1976-02-24

Shapiro, Jacob

61 41R, 61 5374, E02D 2316, E02D 522

Patent

active

039396649

ABSTRACT:
A large diameter tubular pile for bedding into a borehole has an auxiliary tube extending inside it and a series of axially spaced apart holes through its wall which communicate with the interior of the auxiliary tube through discharge pipes which are arranged to allow flow only from the auxiliary tube to outside the pile. The pile is bedded in a borehole by first inserting the pile and then introducing into the auxiliary tube an injection pipe having a pair of axially spaced apart plugs which seal against the inner wall of the auxiliary tube. The injection pipe is located so that the plugs seal on opposite sides of an opening into a discharge pipe, and grout under pressure is forced from the injection pipe through the discharge pipe into the borehole around the pile. This procedure may be repeated for the other discharge pipes.

REFERENCES:
patent: 3064438 (1962-11-01), Muller
patent: 3084518 (1963-04-01), Hochstrasser

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