Thin wall prefabricated superposed concrete underground continuous wall

Abstract

A thin wall prefabricated superposed concrete underground continuous wall is made of splicing multiple prefabricated wall plates. Each prefabricated wall block is provided with multiple rectangular holes in the middle to reduce weight and be easy to hoist, and rib plates are arranged among the rectangular holes. Two ends of the wall are provided with prefabricated notches, and expansion water stopping strips are embedded in the notches. After soil is digged to form a groove, the wall plates are hoisted in place for splicing, and concrete is poured in cavities to jointly form a whole together with a prefabricated concrete wall. The thin wall prefabricated superposed concrete underground continuous wall has the advantages of high intensity and good penetration resistance.

Description

technical field [0001] Building Construction Background technique [0002] The two walls of the basement project are integrated, which combines the enclosure structure and the basement exterior wall structure, saves land, expands the basement area, and saves engineering costs. It has broad prospects and is of great practical value. The current underground diaphragm wall is usually constructed by cast-in-place method: excavate the groove section, put down the reinforcement cage, and pour concrete. This cast-in-place method has some disadvantages: due to the stratum, the surface is very rough, and there are even large holes with collapsed walls, etc., which requires a lot of trouble in chiseling and lining the walls, and there are quality defects of exposed steel bars. The prefabricated basement continuous wall panel has smooth surface, which avoids the disadvantages of ordinary underground continuous wall and improves the project quality. However, if the wall panels are ful...

AI Technical Summary

Problems solved by technology

This cast-in-place method has some disadvantages: due to the stratum, the surface is very rough, and there are even large holes with collapsed walls, etc., which requires a lot of trouble in removing and lining the walls, and there are quality defects of exposed steel bars

However, if the wall panels are fully prefabricated (solid core), the general underground diaphragm wall structure bears huge force, and the panel thickness must be very large (the thin one is 500mm, and the thick one exceeds 1000mm). Leakage is difficult to deal with, and thin-walled hollow wall panels are not strong enough to withstand huge underground pressure. The laminated structure can well overcome the shortcomings of the two

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