Construction Method of Formwork Supporting System for Pile Foundation Supported by Steel Pipe Pile

Abstract

The invention relates to a construction method of a steel pipe pile support pile foundation cap formwork system, comprising the following steps: 1) construction preparation; 2) steel pipe pile preparation and construction; 3) steel pipe pile oriented sinking; 4) external retaining Synchronous pile sinking of soil steel plates; 5) Laying of portal steel beams; 6) Erection of pouring platforms; 7) Concrete pouring of caps. The beneficial effect of the present invention is: the present invention sets the inner support filter screen on the inner side wall of the steel pipe pile, and can control the bonding of the inner support filter screen and the steel pipe pile through the position control inner rod, which reduces the replacement of the inner support filter screen difficulty; at the same time, the present invention sets a slag removal system consisting of a slag discharge tank bottom plate and a slag discharge tank side plate at the bottom of the position-controlling inner rod, which reduces the difficulty of removing waste slag inside the pipe pile; The tip part is provided with a pile end filling body, which helps to reduce the damage of the pile tip during the installation of the steel pipe pile; Provides lateral constraints.

Description

technical field [0001] The invention relates to a construction method of a steel pipe pile supporting pile foundation cap formwork support system, belongs to the field of foundation engineering, and is suitable for pile foundation construction engineering. Background technique [0002] As an important bearing body, the foundation pile cap has always been the focus of attention in engineering circles for its construction quality and construction technology. In the construction of foundation caps with high groundwater levels in weak strata, or the construction of underwater foundation caps, it is often necessary to build construction cofferdams, and on this basis to erect concrete pouring platforms and concrete pouring construction, the construction difficulty is high, Quality control is difficult. [0003] In the prior art, there is a pile cap foundation and its construction method, including vertical piles and horizontally arranged cap slabs, the piles and the cap slab are ...

AI Technical Summary

Problems solved by technology

However, the installation and positioning of the cap is difficult, and the coordinated mechanical performance with the foundation pile is difficult to guarantee

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