Construction technology for concrete filled steel tube mold bag pile compound retaining structure

Abstract

The invention discloses a construction technology for a concrete filled steel tube mold bag pile compound retaining structure. The construction technology is characterized by comprising the following steps: (1) surveying and setting out; (2) vertically forming a hole; (3) manufacturing and mounting a steel tube; (4) manufacturing and mounting a grouting tube; (5) manufacturing and mounting a water draining system through a mold bag; (6) performing a grouting construction process. According to the construction technology for the concrete filled steel tube mold bag pile compound retaining structure, the problems that the construction field is narrow, the large-scale equipment close to the surrounding constructions is difficult to be carried into the field for construction, the influence on the surrounding constructions is great in the implantation process and especially the shallow basis of the constructions is influenced in the processes of river regulation and bank construction can be solved, and meanwhile, the quickening of the project progress is benefited, the project cost is lowered, a protecting layer meeting the code requirement is formed in the manner of wrapping the steel tube with a recycled material concrete through mold bag grouting and the problem of the steel tube corrosion resistance of the concrete filled steel tube in the foundation basis application process can be solved.

Description

technical field [0001] The invention relates to the technical field of construction technology of a composite soil-retaining structure of a concrete-filled steel pipe mold bag pile, in particular to a construction technology of a composite soil-retaining structure of a steel pipe concrete mold bag pile. Background technique [0002] A retaining wall refers to a structure that supports roadbeds, river fills or hillside soils, and prevents the deformation and instability of fills or soils. In the cross section of the retaining wall, the part directly in contact with the supported soil is called the back of the wall; the part opposite to the back of the wall is called the wall; the part in direct contact with the foundation is called the base; The top surface of the wall is called the top of the wall; the front end of the base is called the toe of the wall; the rear end of the base is called the heel of the wall. According to its stiffness and displacement mode, it can be divi...

AI Technical Summary

Problems solved by technology

The existing concrete-filled steel pipe piles are filled with concrete into the steel pipes, and coated with anti-corrosion paint on the outside, which solves the problem of steel pipe anti-corrosion to a certain extent. Difficulty in pouring concrete due to the diameter of the pipe, difficulty in controlling the depth and quality of the pile tip entering the bearing layer, etc.

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