| 摘要 |
PCT No. PCT/NL94/00154 Sec. 371 Date Jan. 4, 1996 Sec. 102(e) Date Jan. 4, 1996 PCT Filed Jul. 4, 1994 PCT Pub. No. WO95/02092 PCT Pub. Date Jan. 19, 1995A method for forming a foundation pile in the ground utilizing a prefabricated pile shaft, placed with clearance into a tube screwed into the bearing ground layer, which tube is provided with a screw blade. Between the wall of the tube and the pile shaft a self-hardening mass is provided. The tube can be removed from the ground in the unscrewing direction while operating as a screw conveyor. The tube may also be retracted from the ground, initially without rotation, with a thick skin of self-hardening mass being formed around the pile shaft, which mass is subsequently pressurized by causing the tube to function as a screw conveyor.
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