Method of laying pipes in the ground

Details Method of laying pipes in the ground Method of laying pipes in the ground

1975-12-22

1977-05-03

Shapiro, Jacob

Boring or penetrating the earth

Below-ground impact members

With releasable means to detachably retain telescoping...

61 42, 175 62, 254 29R, F16L 100

Patent

active

040206416

ABSTRACT:
There is disclosed a method of laying small-diameter pipes such as gas, water pipes or the like precisely in position in the ground. Small-diameter pilot pipes are first laid in with a pilot head being measured and controlled in order to make its advance straight. Pipes which are larger in diameter than the pilot pipes are then laid in successively, the large-diameter pipes being led by the pilot pipes. A multistage head is used as a head utilized for consolidation of soil and disposed in a following relationship to the pilot pipes, thereby reducing resistance exerted upon the head.

REFERENCES:
patent: 2656683 (1953-10-01), Riva
patent: 3713500 (1973-01-01), Russell
patent: 3742581 (1973-07-01), Roodveis
patent: 3881558 (1975-05-01), Dolza
patent: 3894402 (1975-07-01), Cherrington

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