Full-section jacking system and jacking method for underground excavation of comprehensive pipe gallery sub-storage structure

Abstract

The invention discloses a full cross section jacking system for an underground excavation utility tunnel sub carbon structure. The system comprises a reaction force back system, a jacking force system support frame, a jacking force system, a guide rail, a force transmission reverse T beam and a resistance reduction system. The invention also discloses a jacking method of the jacking system. According to the method, firstly, the integral stage length selection and integral prefabrication of a reverse T sub cabin structure are performed; then, the reaction force back system, the jacking force system support frame, the jacking force system and the guide rail are installed in a node well; in addition, the resistance reduction system is arranged on a small longitudinal beam in a utility tunnel; then, the force transmission reverse T beam is installed; the jacking force system is opened; sectioned reverse T sub cabin structures takes place one by one; finally, the seam filling and leveling are performed in a seam position of the reverse T sub cabin structure and the utility tunnel, and the sub cabin structure jacking is completed. The system and the method provided by the invention solve the problems of construction complexity, narrow and small operation space and the like of the non-excavation process utility tunnel sub cabin structure; the construction efficiency of the conventional sub cabin structure can be obviously improved.

Description

technical field [0001] The invention relates to the construction of a comprehensive pipe gallery, in particular to a full-section jacking system and a jacking method for a sub-storage structure of an underground excavated comprehensive pipe gallery. Background technique [0002] At present, in the construction of the partial warehouse structure in the comprehensive pipe gallery of the trenchless construction method, the main method is the cast-in-place method of the full-scale support. It is beneficial to the turnover of construction machinery and materials and the guarantee of project quality. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a fast, green, and low-cost construction temporary system and method for the sub-storage structure of the underground excavation comprehensive pipe gallery. The complex construction of the integrated pipe gallery sub-warehouse structure and the narro...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a fast, green, and low-cost construction temporary system and method for the sub-storage structure of the integrated pipe gallery in underground excavation. The complex construction of the sub-warehouse structure of the integrated pipe gallery and the narrow operating space can significantly improve the construction efficiency of the traditional sub-warehouse structure, making it more scientific and reasonable in terms of economy, construction period, quality, and safety.

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