Segment structure with combined tenon-and-mortise joint and female head locking joint connection components

Abstract

The invention belongs to the technical field related to a shield tunnel lining structure, and discloses a segment structure with combined tenon-and-mortise joint and female head locking joint connection components. The segment structure includes multiple shield segments and the multiple combined tenon-and-mortise joint and female head locking joint connection components, the segment structure is cylindrical, the shield segments are in arc shapes, two rectangular ends and two arc-shaped ends which are connected are included, the two rectangular ends are arranged in the circumferential directionof the segment structure, and the two arc-shaped ends are arranged in the axial direction of the segment structure. The two opposite arc-shaped ends are provided with grooves and protrusions, and theprotrusions are contained in the grooves; each combined tenon-and-mortise joint and female head locking joint connection component comprises a tenon-and-mortise joint connecting piece and a female head locking pushing joint connecting piece, wherein the tenon-and-mortise joint connecting piece is connected to the two opposite rectangular ends, the female head locking pushing joint connecting piece is connected with the two opposite arc-shaped ends, and circumferential and axial connection of every two adjacent shield segments is realized. The segment structure improves the waterproof performance, the shear performance and the joint toughness.

Description

technical field [0001] The invention belongs to the related technical field of shield tunnel lining structure, and more specifically relates to a segment structure with combined mortise and tenon and female locking joint connection components. Background technique [0002] In recent years, with the increasingly serious problem of urban traffic congestion, more and more cities have begun to construct subway projects. Due to its small impact on the environment, the shield machine is suitable for large buried depth, high earth pressure, and high water pressure construction, and has the advantages of low cost and wide application range. It occupies a dominant position in the construction of urban subway projects and has been It has become an indispensable general construction technology for tunnels. [0003] Shield method tunnel construction is one of the main construction technologies for the construction of subway tunnels and comprehensive utility corridors, and segment assem...

AI Technical Summary

Problems solved by technology

Most of the traditional shield segment rings are connected by arc bolts. The arc bolts are easily deformed. It is often difficult to perforate the arc bolts during construction. At the same time, special personnel are required to perform bolt locking and retightening operations, which consumes a lot of time and effort. In addition, the anti-seepage performance and durability of the traditional bolt connection method are not high. During the later operation and maintenance of the shield tunnel, quality problems such as segment water seepage, segment cracks, and ballast bed separation are often prone to occur.

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