Construction method of one-side form bracing for underground structure sidewalls

Abstract

The invention discloses a construction method of one-side form bracing for underground structure sidewalls. The method includes the steps of installing a form which comprises a first side and a second side, with the first side close to an underground diaphragm wall; fixing one end of a waterproof tie bolt on the underground diaphragm wall through a connecting rebar; making a hole on the form, allowing the other end of the waterproof tie bolt to penetrate through the first side of the form and extend out of the second side of the form, and fixing with a nut on the second side; installing a plurality of form bracing structures according to stress need, casting sidewall concrete, and completing one-side form bracing for the underground structure sidewalls.

Description

technical field [0001] The invention relates to a construction method of a formwork structure, in particular to a construction method of a side wall of an underground structure to formwork on one side. Background technique [0002] With the expansion of my country's construction field to underground space, deep foundation pit engineering is also developing in the direction of ultra-deep, super-large, complex, and multi-form. The construction process is becoming more and more complicated and the construction difficulty is gradually increasing. The emergence of underground diaphragm walls and internal support systems has brought considerable development to deep foundation pit engineering, and at the same time put forward higher technical requirements for side wall construction, especially the amount of concrete poured at one time for the side walls of subway station structures. Large, the side wall formwork can only use one-side support formwork, if the traditional full hall s...

AI Technical Summary

Problems solved by technology

The emergence of underground diaphragm walls and internal support systems has brought considerable development to deep foundation pit engineering, and at the same time put forward higher technical requirements for side wall construction, especially the amount of concrete poured at one time for the side walls of subway station structures. Large, the side wall formwork can only use one-side support formwork, if the traditional full hall support system is used, there will be problems such as difficulty in pouring side wall concrete, difficult maintenance, long turnover period of formwork and support, and more materials

At the same time, due to the erection of the full hall frame, other processes in the foundation pit cannot be constructed

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