Separable tooth-shaped connecting device

Abstract

The invention relates to a separable tooth-shaped connecting device. The device is used for connecting two adjacent shield segments, and comprises a sleeve B embedded in the first shield segment, a sleeve C embedded in the second shield segment, and a plug A of which the tail part is screwed and fixed with the sleeve C and the head part is inserted into the sleeve B for clamping connection; and the sleeve B is composed of a shell, a separable clamping member and a spring, wherein the separable clamping member and the spring are arranged in the shell. Compared with the prior art, the separable tooth-shaped connecting device has the advantages of reliable connection, simple installation, high practical value and the like.

Description

technical field [0001] The invention relates to the technical fields of shield segment connection, civil engineering and mechanical engineering, in particular to a detachable toothed connection device. Background technique [0002] With the wide application of the shield tunneling construction method, the assembly and connection of connecting components such as shield tunneling segments is an important link in the shield tunneling construction method. Improving the connection reliability and speed of connecting components such as shield tunneling segments has become an important task. The construction goal is urgent during construction. In the existing shield tunnels, the connection between the shield segments and other connecting members mostly uses arc-shaped bolts, which are easy to deform. During the construction process, it is usually troublesome to manufacture special arc-shaped bolt holes. And after installation, the arc bolts need to be manually locked, and this proc...

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Problems solved by technology

[0002] With the wide application of the shield tunneling construction method, the assembly and connection of connecting components such as shield tunneling segments is an important link in the shield tunneling construction method. Improving the connection reliability and speed of connecting components such as shield tunneling segments has become an important task. The construction goal is urgent during construction. In the existing shield tunnels, the connection between the shield segments and other connecting members mostly uses arc-shaped bolts, which are easy to deform. During the construction process, it is usually troublesome to manufacture special arc-shaped bolt holes. And after installation, it is necessary to manually lock the arc bolts, which takes a lot of time and manpower

[0003] In addition, the existing arc bolt connection method has a short service life and poor connection tightness, and problems such as connection failure, segment cracking, and tunnel water seepage are prone to occur during the later operation of the shield tunnel; in addition, due to the structural characteristics of the joint, the shield The stiffness of the joint joints of the connecting members such as the shield segment is much greater than that of the main body of the connecting member such as the shield segment. Under the action of the load, the concrete cracking of the fan-shaped block caused by the stress concentration often occurs at the joint of the fan-shaped block. At the seam, the connection of connecting components such as shield segments in foreign countries is usually realized by quick joints, but there are disadvantages such as high manufacturing costs and low performance reliability.

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