Five in one pre-expansion ecological pile body processing foundation method

Five in one pre-expansion ecological pile body processing foundation method

  • CN 101,451,356 A
  • Filed: 12/30/2008
  • Published: 06/10/2009
  • Est. Priority Date: 12/30/2008
  • Status: Active Application
First Claim
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1. , a kind of five in one pre-expansion ecological pile body Ground Treatment method is characterized in that it comprises following construction sequence:

  • at first at the ground inner hole, and again with in the hammer body penetration hole, and with over pressure hammer body kinetic energy E=3 * 10 4

    9.8 * 10 7KNm/m 2Vertical and the laterally pre-extruding of expanding of the five in one that foundation soil, inter-pile soil in its hole are dashed, pound, squeeze, press, split is transmitted after the dynamic consolidation that advances, again with machinery filler in its hole, and with above-mentioned over pressure hammer body the dynamic consolidation pile that advances is transmitted in the vertical and laterally pre-extruding of expanding of five in one that the filler in its hole, inter-pile soil dash, pound, squeeze, press, split;

    Carry out filler by giving in its hole with machinery earlier repeatedly again according to design standard subsequently by above-mentioned process, the mode of the dynamic consolidation that advances is transmitted in the vertical and laterally pre-extruding of expanding of five in one that continues that with over pressure kinetic energy hammer body energy filler, inter-pile soil in its hole are dashed, pound, squeeze, press, split again, make and draw in the hole rise progressively fixed pile and eliminate dirt of follow-up filler and inter-pile soil, until strength of the mixing pile with highly reach design standard;

    To its apical pore mouth absolute altitude 0.6m~

    1.5m of portion dark filler or foundation surface expansion loose ground, give fixed compacting or excavate with pressure kinetic energy, so that ground obtains deep foundation, special pile foundation and the pre-expansion ecological pile body of composite foundation of the pre-expansion ecological pile body of high-bearing capacity to design elevation.

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