Soil displacement hammer

Details Soil displacement hammer Soil displacement hammer

1989-03-23

1990-12-04

Dang, Hoang C.

Boring or penetrating the earth

Boring without earth removal

175 73, E21B 414, E21B 708

Patent

active

049746871

ABSTRACT:
The invention provides a steerable soil displacement hammer for driving holes in the ground. This comprises a substantially cylindrical body (1) and a soil displacement head (2) at a forward end of the body. The head is of larger diameter than the body so as to tend to create an enlarged hole around the body when the head is driven through the ground. At the rear end of the body a pivotable member is provided for directing said rear end away from the center of this hole.

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