Subway shield tunnel damping segment ring suitable for differential settlement and high-intensity earthquake areas

Abstract

The invention provides a subway shield tunnel damping segment ring suitable for differential settlement and high-intensity earthquake areas, and aims to solve the problem that a tunnel structure is deformed and damaged due to structural stress concentration caused by differential settlement or earthquake waves. The damping segment ring comprises groove-shaped ring beam segment rings, a damper andan inner container steel drum; the damper is connected with the groove-shaped ring beam segment rings located at the left side and the right side of the damper through damper connecting bolts; the inner container steel drum is arranged at the inner side of the damper and tightly attached to the damper; and the damper is formed by connecting a left side loading plate, an inner core located in the middle and a right side loading plate through a damper spring mechanism. According to the subway shield tunnel damping segment ring suitable for the differential settlement and high-intensity earthquake areas, the shield subway tunnel structure in the differential settlement areas or the high-intensity earthquake areas has high deformation self-adjusting and stratum structure relative deformation adapting capacity, so that structural stress concentration caused by deformation is reduced or even eliminated, structural deformation damage is avoided, and the subway shield tunnel damping segment ring is convenient to manufacture and install and high in practicability.

Description

technical field [0001] The invention belongs to the technical field of shield tunneling, in particular to a damping segment ring of a subway shield tunnel suitable for differential settlement and high-intensity earthquake areas. Background technique [0002] Subway is one of the main means to solve urban public transportation. However, during the long-term operation of existing subways, affected by factors such as stratum inhomogeneity, load inhomogeneity, and large-area groundwater level drop, the phenomenon of longitudinal uneven settlement of shield subway tunnels occurs from time to time, especially in eastern my country. There is widespread regional ground subsidence in coastal soft soil areas, which can lead to uneven settlement at different structures. my country is also a country with frequent earthquake disasters. Seismic waves cause structural deformation and cracking of shield subway tunnels in high-intensity earthquake areas. The deformation of the segment struc...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that differential settlement or structural movement caused by seismic waves will cause stress concentration and cause deformation and damage to the tunnel structure, the embodiment of the invention provides a damping segment ring for subway shield tunnels suitable for differential settlement and high-intensity earthquake areas. By installing the The above-mentioned damping segment ring makes the shield subway tunnel structure in the differential settlement area or high-intensity earthquake area have strong deformation adaptability, thereby reducing or even eliminating the structural stress concentration caused by deformation and avoiding structural damage; The damping segment ring has the characteristics of matching the segment structure of the conventional shield subway tunnel, and the construction is convenient without using other equipment. It only needs to skip the segment ring of the present invention during the installation of the conventional segment, and the practicability is very strong

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