Cast-in-place pile construction method using steel pipe column splicing piles

Abstract

The invention provides a cast-in-place pile construction method using steel pipe column splicing piles. The method includes: a) forming pile holes and forming slurry protecting walls automatically during formation of the pile holes; b) making the steel pipe column splicing piles which comprise steel tubes and reinforcing cages, and fixing the bottom ends of the steel pipes to the top ends of the reinforcing cages; c) lifting and positioning the steel pipe column splicing piles in the pile holes; d) pouring concrete into the pile holes through injection pipes on the steel pipe column splicing piles; and e) filling soil between the steel pipe column splicing piles and pipe hole walls. With the filling pile construction method, unity of cast-in-place piles is improved during the construction process of underground engineering, so that pipe formation quality of the cast-in-place piles is improved, and construction processes of cast-in-place piles are decreased.

Description

technical field [0001] The invention relates to the field of construction, in particular to a construction method of cast-in-place piles using steel pipe column-connected piles. Background technique [0002] At present, as the scale of the city continues to grow, people are paying more and more attention to the development and utilization of urban underground space. Cast-in-place piles using steel pipe column joint piles are effective foundation structures for pouring multi-storey basements and other multi-storey underground structures with a wide range of applications. , especially in underground projects with large spans. Steel pipe column pile connection structure mainly refers to the combination of steel cage and steel pipe column as the supporting framework of cast-in-place piles. [0003] The existing construction methods of cast-in-situ piles using steel pipe columns connected to piles usually construct the steel cage and the steel pipe column separately, that is, fi...

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Problems solved by technology

[0004] The disadvantage of this method is that the steel cage and the steel pipe column are regarded as two independent parts, which are hoisted and poured separately, and the setting of the concrete is not completed in the same period of time, which will not only affect the integrity and integrity of the cast-in-situ pile, Moreover, the construction process is repeated and the construction period is long

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