Comprehensive pipe gallery tunnel with multiple parallel compartments mutually independent in structure and construction method of comprehensive pipe gallery tunnel

Abstract

The invention discloses a comprehensive pipe gallery tunnel with multiple parallel compartments mutually independent in structure and a construction method of the comprehensive pipe gallery tunnel. The comprehensive pipe gallery tunnel is composed of the mutually independent compartments, each compartment with the independent structure includes an advanced supporting structure, an initial supporting structure and a second lining structure, the initial supporting structures are of a wraparound structure, the advanced supporting structures are arranged on the upper parts of the initial supporting structures, and the second lining structures are arranged around the inner surfaces of the initial supporting structures. The parallel underground excavation pipe gallery tunnel structure constructed by the construction method has the following advantages that each pipe gallery tunnel is of an independent composite lining structure, and the structural stress working condition of each pipe gallery tunnel is simple; each pipe gallery tunnel is independently excavated and initial supports and second linings are then constructed, so that the mutual interference is low; and independent pipe gallery tunnels are side by side to form a comprehensive pipe gallery with a waterproof and continuous structure.

Description

technical field [0001] The invention relates to the technical field of underground building construction, in particular to a multi-chamber parallel comprehensive pipe gallery tunnel with mutually independent structures and a construction method thereof. Background technique [0002] At present, the common underground excavation comprehensive pipe gallery tunnel structure generally adopts a multi-span and arch structure, and adjacent pipe gallery structures share side walls. The earthwork of the shared side wall between the tunnels is used as the reinforced concrete structure of the shared side wall; then symmetrical excavation, support and secondary lining are applied to both sides, and finally a multi-span arch pipe gallery tunnel structure is formed. [0003] Engineering practice shows that the multi-span pipe gallery tunnel structure formed by this method has the following problems: [0004] (1) The side wall structure of the shared part formed first will be affected by ...

AI Technical Summary

Problems solved by technology

[0004] (1) The side wall structure of the shared part formed first will be affected by the excavation disturbance on both sides, which is not conducive to the stability of the shared side wall structure;

[0005] (2) Since it is almost impossible to achieve symmetrical excavation for the pipe gallery tunnels on both sides of the shared side wall, asymmetrical excavation will form an unbalanced load on the shared side wall, which is unfavorable to the force of the shared side wall;

[0007] (4) The structural stress system of the entire comprehensive utility gallery is complex to transform

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