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Subway shield segment

A shield segment and subway technology, which is applied in underground chambers, shaft linings, tunnel linings, etc., to achieve the effects of simple manufacture, dispersing stress concentration, and improving overall strength

Pending Publication Date: 2019-04-26
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned defects of the existing subway shield segments, the present invention provides a subway shield segment with simple structure, high strength, high prefabrication efficiency, and durable sealing and waterproof performance

Method used

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] like figure 1 As shown, the shape of the subway shield segment of the present invention is an arc-shaped sheet whose radian is 1 / 5 circle. image 3 The shown interconnected inner corrugated steel plate 2 and outer corrugated steel plate 10 are used as a framework to form an arc-shaped sheet body 3 made of high-strength concrete 11 . The crests of the inner corrugated steel plate and the outer corrugated steel plate are fixedly connected by connecting bolts 9, and studs 1 are respectively welded on both sides of the troughs of the inner corrugated steel plate and the outer corrugated steel plate to better combine the corrugated steel plate with concrete. The two ends are respectively processed into a wave-free flat plate shape. When pouring concrete, use molds to pour the axial ends of the sheet into figure 1 and the "L"-shaped splicing groove 8 shown in Figur...

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Abstract

The invention relates to a subway shield segment. The subway shield segment consists of a circular arc-shaped segment body, wherein the circular arc-shaped segment body is manufactured by casting high-strength concrete to a framework; the framework consists of an inner corrugated steel plate and an outer corrugated steel plate of which the wave peaks are mutually connected by connecting bolts; bolt screws are distributed at both side surfaces of wave valleys of the inner corrugated steel plate and outer corrugated steel plate; the two axial ends of the segment body are respectively provided with an L-shaped splicing tongue-and-groove; the two radial ends of the segment body are respectively adhered with a rubber butting plate; the two radial ends of the segment body are provided with two bolt grooves and arc-shaped bolt holes for installing the arc-shaped connecting bolts connecting the adjacent segment bodies. The subway shield segment has the advantages that the artificial bundling of reinforcement cages is not required, the manufacturing is simple and convenient, and the factory production is convenient; the stress characteristic of the corrugated steel plate is good, stress concentration of the loads can be effectively dispersed, and the easiness in damage to the subway shield segment is avoided; the gap of the corrugated steel plate framework is large, and the concrete iseasy to be tamped during casting; rings of the shield pipe are butted by the spliced tongue-and-grooves, and the sealing waterproof material is additionally arranged at the butting part, so that the overall strength and waterproof property of the subway shield pipe can be improved.

Description

technical field [0001] The invention relates to subway tunnel construction, in particular to a subway shield segment. Background technique [0002] At present, shield tunnels are generally used in subway tunnel construction. The shield segment is the main assembly component of shield tunnel construction, and is the innermost barrier of the tunnel, which bears the role of resisting soil pressure, groundwater pressure and some special loads. The shield segment is the permanent lining structure of the shield tunnel, which is directly related to the overall quality and safety of the tunnel, and affects the waterproof performance and durability of the tunnel. [0003] The current subway tunnel is formed by butt joints of shield segments made of arc-shaped sheet-shaped reinforced concrete. The joints between the shield segments and between the rings are through-jointed, and the joints are sealed and waterproofed with sealing strips. The disadvantages of this kind of shield segme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/08E21D11/38
CPCE21D11/08E21D11/083E21D11/086E21D11/385
Inventor 宋福春赵洁
Owner SHENYANG JIANZHU UNIVERSITY
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