Construction method of prestress cast-in-place pile and soil cement pile engagement support

Construction method of prestress cast-in-place pile and soil cement pile engagement support

  • CN 104,480,947 A
  • Filed: 11/24/2014
  • Published: 04/01/2015
  • Est. Priority Date: 11/24/2014
  • Status: Active Application
First Claim
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1. prestressing cast pile is engaged a construction method for supporting with cement earth pile, it is characterized in that comprising the following steps:

  • 1st step;

    measuring stake position, adjacent studs is as occlusion overlap joint;

    2nd step;

    according to cement earth pile design length, pile-forming machine perching, bottom drill bit, cement paste is injected by agitation pile drilling rod, then after adopting agitation pile drilling tool to be drilled into the design stake holes degree of depth, slowly mention agitation pile drilling rod again until pressure injection is high to design stake top mark, the steel pipe for subsequent use of band injected hole shakes to cement earth pile by the Special vibrator of recycling stake machine, completes water-seal pile construction;

    3rd step;

    pile-forming machine perching, after water-seal pile completes in 24 hours, long screw drill rod and cut drill is adopted to cut adjacent two water-seal piles, after being drilled into the design stake holes degree of depth, bottom stake holes, guncreting is carried out by drilling rod, simultaneously slowly mention drilling rod until pressure to be poured into design stake top mark high, then by the vibrator of stake machine, the reinforcing cage of band steel strand is inserted bottom concrete pile, completes soldier pile construction;

    4th step;

    by construction requirement chipping pile crown, then adopts high grade mortar levelling pile crown, places steel box beam at pile crown top;

    5th step;

    on the top of soldier pile top steel box beam, place keeper plate of steel with holes, and be inserted in keeper plate of steel hole by steel strand, utilizes jack pair steel strand to carry out stretch-draw, locks steel strand and ground tackle again after reaching design value of thrust;

    6th step;

    when reclaiming steel box beam, steel strand and keeper plate of steel after foundation ditch completion.

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