Is used for the application manner and this application manner of the high yield cast-in-place concrete pile and the like the tightening compacting post

摘要

PURPOSE: To improve a compaction effect, and to increase the bearing power of a front end by penetrating a compaction pile while blowing out cement milk and pulling up a penetrating rod while leaving the compaction pile into a ground and blowing out cement milk. ;CONSTITUTION: A compaction pile 3 is inserted into a guide pipe 2 installed to a bored hole 1 or a precast pile erected into the bored hole 1 by a penetrating rod 8, and made to reach a supported ground 11. The compaction pile 3 is penetrated up to desired depth while being rotated by the penetrating rod 8, and cement milk 9..., etc., are blown out from the back of a cutter, etc., mounted at the front end section of the compaction pile 3 at the same time, and impregnated into the supported ground 11. The compaction pile 3 is detached from the penetrating rod 8 and left in the support ground 11, and the penetrating rod 8 is pulled up simultaneously while blowing out cement milk 9, etc., from the front end of the penetrating rod 8. A section up to a specified level in the guide pipe 2 or the precast pile is filled with cement milk 9, etc.;COPYRIGHT: (C)1993,JPO&Japio