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Corrugated steel segment ring, flexible segment lining and design method of flexible segment lining

A corrugated, segmented technology, used in wellbore lining, tunnel lining, mining equipment, etc., can solve the problem of poor stability, water inrush and mud inrush in shield tunnels, structural damage of segments, and oversized bolts on the joint surface of segments. and other problems, to achieve the effect of good stability and easy compression

Pending Publication Date: 2020-02-28
SOUTHWEST JIAOTONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional shield tunnel segment lining will be difficult to adapt to the large displacement difference caused by the dislocation of active faults, which will cause excessive opening of the segment joint surface and shear failure of the bolts, which will further lead to water and mud gushing and segment structure of the shield tunnel. damage, poor stability

Method used

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  • Corrugated steel segment ring, flexible segment lining and design method of flexible segment lining
  • Corrugated steel segment ring, flexible segment lining and design method of flexible segment lining
  • Corrugated steel segment ring, flexible segment lining and design method of flexible segment lining

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Embodiment Construction

[0033] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the present invention. However, it should be clear that the embodiments described below are only some, not all, embodiments of the present invention. Without departing from the spirit and scope of the present invention defined and determined by the appended claims, all other embodiments obtained by those skilled in the art without any creative effort shall fall within the protection scope of the present invention.

[0034] Such as figure 1 and figure 2 As shown, the corrugated steel pipe sheet ring includes a plurality of ring-shaped segments surrounded by segments, and longitudinal bolt holes 4 and circumferential bolt holes are opened on the segment segments, and the adjacent segments pass through the circumferential bolt holes that match the annular bolt holes. Bolted connection, the inne...

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Abstract

The invention discloses a corrugated steel segment ring, a flexible segment lining and a design method of the flexible segment lining. The corrugated steel segment ring includes a plurality of segments surrounding to form a ring shape. The segments are provided with longitudinal bolt holes and annular bolt holes. The inner surfaces and the outer surfaces of the segments are all sinusoidal surfaces. The flexible segment lining includes a plurality of corrugated steel segment rings connected in sequence, and the adjacent corrugated steel segment rings are connected through longitudinal bolts matched with the longitudinal bolt holes to form a first annular segment lining. Concrete segment linings are installed at both ends of the first segment lining, and the center line extension line of thefirst segment lining coincides with the center line extension line of the concrete segment linings. A fault penetrates through the middle part of the first segment lining. The design method includesthe step of determining the sizes of the required first segment lining and concrete segment linings based on the geological conditions of a construction site and the activity rules of the fault.

Description

technical field [0001] The invention relates to the field of tunnels, in particular to a corrugated steel pipe segment ring, a flexible segment lining and a design method thereof. Background technique [0002] Seismic active fault zones are widely distributed in my country. With the construction of shield tunnels for high-speed railways and urban subways in China, some shield tunnels that have been built and are planned to be built have crossed active fault zones. Fault dislocation will cause a large displacement difference between the upper and lower walls, and the damage to the shield tunnel caused by it is more serious than the damage to the shield tunnel structure caused by seismic waves. [0003] The shield tunnel is composed of segments and bolts, its stiffness is lower than that of the integral cast-in-place shield tunnel, and it has certain adaptability to longitudinal deformation. The traditional shield tunnel segment lining will be difficult to adapt to the large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08
CPCE21D11/08E21D11/083E21D11/003
Inventor 姚超凡晏启祥何川张君臣代永文郭柏里张建辉张文芮庚豪吴政隆
Owner SOUTHWEST JIAOTONG UNIV
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