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Cast-in place pile post-grouting construction method for pouring construction
The invention discloses a cast-in place pile post-grouting construction method for pouring construction. The method comprises the steps that cast-in place pile pore-forming construction is carried out; first-time hole clearing is carried out; reinforcement cage and grouting pipe mounting is carried out; second-time hole clearing is carried out; pile body concrete placing is carried out; pile concrete curing is carried out; grouting soil mass reinforcement is carried out; grouting is stopped; next cast-in place pile grouting working is carried out; and checking and accepting are carried out. After pile forming, the intensity of pile body concrete reaches a certain degree, a high-pressure generating device is used, high-pressure cement grout flow with concentrated energy is formed, grout is combined with pile body surrounding soil mass through the effects of permeating, separation, filling, compaction and the like, pile body sediment and pile side mud cakes are solidified, pile side friction resistance and pile end bearing force are enlarged, the shortcomings that due to hole bottom sediment and pile side mud cakes of a common cast-in place pile, bearing force is low, and vertical load decreasing is high are overcome, and important economic and social significance is achieved in single pile bearing force improving, pile foundation sedimentation lowering, pile foundation engineering quality guaranteeing and the like.
Cast-in place pile post-grouting construction method for pouring construction
The invention discloses a cast-in place pile post-grouting construction method for pouring construction. The method comprises the steps that cast-in place pile pore-forming construction is carried out; first-time hole clearing is carried out; reinforcement cage and grouting pipe mounting is carried out; second-time hole clearing is carried out; pile body concrete placing is carried out; pile concrete curing is carried out; grouting soil mass reinforcement is carried out; grouting is stopped; next cast-in place pile grouting working is carried out; and checking and accepting are carried out. After pile forming, the intensity of pile body concrete reaches a certain degree, a high-pressure generating device is used, high-pressure cement grout flow with concentrated energy is formed, grout is combined with pile body surrounding soil mass through the effects of permeating, separation, filling, compaction and the like, pile body sediment and pile side mud cakes are solidified, pile side friction resistance and pile end bearing force are enlarged, the shortcomings that due to hole bottom sediment and pile side mud cakes of a common cast-in place pile, bearing force is low, and vertical load decreasing is high are overcome, and important economic and social significance is achieved in single pile bearing force improving, pile foundation sedimentation lowering, pile foundation engineering quality guaranteeing and the like.
Cast-in place pile post-grouting construction method for pouring construction
ZHANG QING (author) / LI HAIYUN (author) / HE SHIMEI (author)
2015-05-13
Patent
Electronic Resource
English
IPC:
E02D
FOUNDATIONS
,
Gründungen
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