Controllable reinforced concrete strong frozen pile continuous wall and construction method thereof

Abstract

The invention discloses a controllable reinforced concrete strong frozen pile continuous wall and a construction method thereof. The controllable reinforced concrete strong frozen pile continuous wallis composed of reinforced concrete strong frozen piles and inter-pile frozen soil, wherein the reinforced concrete strong frozen piles and the inter-pile frozen soil are distributed at intervals; each reinforced concrete strong frozen pile comprises concrete, a reinforcement cage, a U-shaped freezer and a heat transfer steel plate. The construction method comprises the following steps: (A) preparing a drilling site and a hole site; (B) drilling to the bottom, and preparing for processing the reinforcement cage and the U-shaped freezer; (C) lowering the U-shaped freezer and the reinforcement cage; (D) preparing low-temperature early-strength high-performance concrete; (E) pouring strong frozen pile concrete; (F) forming the reinforced concrete piles; (G) mounting a refrigeration system; (H) actively freezing; (I) maintaining freezing; and (J) finishing the project. The controllable reinforced concrete strong frozen pile continuous wall fundamentally solves the problems and defects of poor water stopping effect, complex construction, low reliability and the like of various existing pile wall construction technologies, can be used for deep development of urban underground space, is beneficial to protecting underground water resources, and remarkably improves the safety and reliability of urban underground engineering construction.

Description

technical field [0001] The invention relates to the technical field of municipal engineering freezing construction. Specifically, it is a controllable reinforced concrete reinforced concrete pile continuous wall and a construction method thereof. Background technique [0002] In recent years, our country is increasing the protection of urban groundwater, strictly controlling the waste of urban water resources caused by underground pumping and precipitation, and effectively controlling the subsidence of the ground and the deterioration of the ecological environment to build a sponge city. Therefore, many cities have introduced a series of policies to control the pumping of precipitation from the ground, resulting in more risks such as groundwater influx and ground collapse during underground engineering construction. [0003] In order to develop underground engineering in depth and reduce construction risks, underground engineering has developed construction methods such as:...

AI Technical Summary

Problems solved by technology

However, these construction methods still have many restrictive conditions in the construction site and other aspects, and the reliability of water stop is still not high; for example: the current reinforced concrete pile wall construction has high strength but poor water stop effect

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