Enclosure for continuous wall foundation pit formed by steel cylinders or steel plate piles adopting seal grooves and occlusion structures and construction method of enclosure

Abstract

The invention relates to an enclosure for a continuous wall foundation pit formed by steel cylinders or steel plate piles adopting seal grooves and occlusion structures. The steel cylinders or steel plate piles adopting the seal grooves are connected to form the continuous pile wall so as to form the foundation pit enclosure, according to the steel cylinders or steel plate piles with the seal grooves, at least one seal groove is formed at the connecting positions of steel plates or piles of steel cylinder piles, the cross section of each groove is in a convex arc shape, a concave shape or a polygon shape, a matched pipe is inlaid in each groove, the steel plates or steel cylinder piles and the pipes in the grooves are jointly and independently tampered into the stratum, pipe cavities in the grooves are left or waterproof sealing materials are injected into the pipe cavities to serve as sealing layers at the connecting positions of the steel plates or the piles of the steel cylinder piles; the cross section of the connecting positions of the steel plates or the piles of the steel cylinder piles is in a hook shape or concave-convex matched or third filling block filling connecting shape; and one or more sealing grooves are formed in the pile connecting positions.

Description

technical field [0001] The invention relates to the construction of foundation pits and open cut foundations in the technical field of construction engineering, in particular to a steel cylinder or steel sheet pile and a continuous wall with a sealed and occlusal structure and its application under certain water-bearing stratum conditions, especially The seal groove and the steel cylinder of the occlusal structure or / and the continuous wall foundation pit composed of steel sheet piles use the enclosure and construction method. Background technique [0002] Steel sheet piles are the most commonly used sheet pile cofferdams. Steel sheet pile is a kind of section steel with lock. Its section has straight plate shape, groove shape and Z shape, etc., and there are various sizes and interlocking forms. The common ones are Larson type, Lackawanna type and so on. It has high strength and is easy to drive into hard soil layers; it can also be constructed in soft soil layers and dee...

AI Technical Summary

Problems solved by technology

Such a waterproof effect is not good, and the amount of work is large

In addition, in the construction of the foundation pit, the necessary concrete waterproof layer can also be used. It is necessary to use large-scale special construction equipment to stir and inject the concrete slurry in the ground and wait for it to solidify, but the cost is too high

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