Design and construction method for flexible composite, seepage-proofing, fabricated and recyclable row pile supporting structure with circular cross section

Abstract

The invention relates to a design and construction method for a flexible composite, seepage-proofing, fabricated and recyclable row pile supporting structure with a circular cross section. The design and construction method comprises the following steps: (1) constructing row piles with circular cross sections; (2) installing section steel top beams; (3) installing steel panels and performing post-grouting on the steel panels; (4) excavating in layers and sections sequentially in the vertical direction; (5) repeating the steps (3) and (4), and constructing up to the design depth; and (6) performing recycling step by step along with pit backfill after the supporting structure completes the using function. The flexible composite, seepage-proofing, fabricated and recyclable row pile supporting structure with the circular cross section constructed by adopting the design and construction method has the advantages that high safety and reliability are achieved, the construction is fast, the technology is advanced, high recyclability and reusability are achieved and the comprehensive economy and environmental protection indexes are superior, is a new method with advanced technology, high safety and reliability, high recyclability and reusability and superior comprehensive economy and environmental protection indexes for excavation and support of projects such as foundation pits, side slopes, subway stations, municipal pipelines and the like, and further has a considerable development and application prospect.

Description

technical field [0001] The invention belongs to the technical field of excavation and support for civil engineering, water conservancy, mining, municipal and other infrastructure facilities, and specifically relates to the flexible composite anti-seepage assembly type recyclable anti-seepage facing in the excavation construction of various types of slopes, foundation pits, municipal pipelines and other projects. The design and construction method of circular pile row pile support structure. Background technique [0002] Since the founding of New China, my country's civil engineering, water conservancy, mining, municipal and other infrastructure construction have achieved world-renowned achievements. In the process of underground space development and utilization, mining of mineral resources, etc., when faced with complex geological conditions, it is often necessary to take slope support or foundation pit support measures to ensure the safety and stability of the underground ...

AI Technical Summary

Problems solved by technology

At present, there is no relevant report on the flexible composite anti-seepage assembled recyclable circular section row pile support structure in China.

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