Shield tunnel segment and manufacturing method thereof

Abstract

The invention provides a shield tunnel segment. The shield tunnel segment comprises a segment shell and multiple reinforcement cages, the segment shell is formed through splicing of a front wall piece, a rear wall piece, an upper wall piece, a lower wall piece, a left wall piece and a right wall piece, the front wall piece, the rear wall piece, the upper wall piece, the lower wall piece, the leftwall piece and the right wall piece are made of high-property concrete or ultra-high-property concrete, any five in the front wall piece, the rear wall piece, the upper wall piece, the lower wall piece, the left wall piece and the right wall piece are spliced to form a containing cavity with a unique opening, one remaining piece can be detachably mounted on the opening of the containing cavity, the reinforcement cages are embedded in the containing cavity from the opening and are poured and fixed through concrete, according to the segment, a steel mold forming manner in a traditional segment manufacturing process can be replaced, on the premise of ensuring design strength needs, the manufacturing engineering time of the segment can be effectively shortened, the segment manufacturing cost can be effectively reduced, and the whole economic benefits can be improved.

Description

Technical field [0001] The invention belongs to the technical field of tunnel engineering, and specifically relates to a shield tunnel segment and a manufacturing method thereof. Background technique [0002] With the rapid development of urban subway construction in China, and subway construction in the city, the requirements for civilized construction, ground subsidence control, and building protection are relatively high. Due to the high degree of mechanization of shield tunnel construction technology, the construction safety factor is relatively high. High, it can minimize the impact on other urban facilities, so it has gradually become the mainstream technology of subway tunnel construction; shield segment is the main assembly component of shield construction, is the innermost barrier of the tunnel, and bears resistance to the soil layer The shield segment is the permanent lining structure of the shield tunnel. The quality of the shield segment is directly related to the ove...

AI Technical Summary

Problems solved by technology

[0003] The current production process of reinforced concrete segments is basically as follows: steel mold→reinforced cage→concrete pouring and ramming→steam curing→hoisting and demoulding→water pool maintenance→natural maintenance of the outlet pool→product inspection; according to the current production method of reinforced concrete segments After pouring and stamping, the segment needs a long maintenance time in the pool and after exiting the pool, generally more than ten days, and the period for the segment to be put into use is long; moreover, the maintenance process of the pool and after exiting the pool must take up a lot of time. The factory site, the overall efficiency is poor

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