Segment structure with combined mortise and tenon joint assembly

Abstract

The invention belongs to the related technical field of shield tunnel lining structure, and discloses a segment structure with combined mortise and tenon and female locking joint connection components. The segment structure includes a plurality of shield segments and a plurality of combined Mortise tenon and female locking joint connection assembly, the segment structure is cylindrical, and the shield segment is arc-shaped, which includes two connected rectangular ends and two arc-shaped ends, and the two rectangular ends are along the segment structure The two arc-shaped ends are arranged along the axial direction of the segment structure; the opposite two arc-shaped ends are respectively formed with grooves and protrusions, and the protrusions are accommodated in the grooves; the combined mortise and tenon and female head The locking joint connection assembly includes a mortise and tenon joint connection and a female lock push joint connection; the mortise and tenon joint connection connects two opposite rectangular ends, and the female lock push joint connection connects two opposite arcs Shaped end, thereby realizing the circumferential and axial connection of two adjacent shield segments. The invention improves waterproof performance, shear performance and 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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