A construction method of underground diaphragm wall combined with prefabrication and cast-in-place

Abstract

The invention discloses a construction method of an underground continuous wall combined with prefabrication and cast-in-place. It divides the leading groove section and the closed groove section alternately according to different intervals, constructs the leading groove section first, and then constructs the closed groove section to obtain a continuous wall, which is used for retaining soil and water stop during foundation pit construction. . By adopting the above-mentioned construction method, the present invention can solve the problems of the underground diaphragm wall "circumvention", mud in the joints, lock pipes cannot be lowered, and uplifting is not smooth, shorten the construction time of the unit groove section, and reduce a large amount of labor. Due to the prefabrication of the leading width, the process of placing the reaction box on the back side is reduced, the efficiency is improved, and a brand-new method is provided for the construction of the underground diaphragm wall. The construction method of the underground diaphragm wall of the present invention costs It is more economical, the construction period is shorter, and the appearance quality and common quality problems of conventional construction have been well controlled, and it is easy to popularize and apply.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to an underground diaphragm wall construction method suitable for excluding rocks. Background technique [0002] At present, the construction of the underground diaphragm wall adopts hydraulic grab buckets for trough construction, then lowers the reinforcement cage, places the lock pipe or joint box, and finally pours concrete. This traditional construction method requires a lot of manual and mechanical construction at the same time. In some silt formations, it is easy to cause concrete to "flow around", and the joints cannot be cleaned, which eventually leads to water leakage from the joints. This method uses prefabricated wall sections to replace traditional lock pipes and joint boxes, avoiding the "flow around problem" of concrete, ensuring the water-stop effect of joints, and controlling a large amount of time for using labor and machinery at the same t...

AI Technical Summary

Problems solved by technology

This traditional construction method requires a lot of manual and mechanical construction at the same time. In some silt formations, it is easy to cause concrete to "flow around", and the joints cannot be cleaned, which eventually leads to water leakage at the joints.

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