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Shield segment

A technology of shield segments and segments, which is applied in shaft equipment, wellbore lining, mining equipment, etc., can solve the problem of not being able to adapt well to the rapid growth of tunnels and the increase of buried depth, the large volume of shield segments, and the load-bearing Low capacity and other problems, to achieve the effect of improving material utilization, improving construction efficiency, and improving bearing capacity

Pending Publication Date: 2022-08-05
CCTEG BEIJING HUAYU ENG +1
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  • Claims
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Problems solved by technology

[0003] With the large-scale application of the shield method, shield tunnels have developed from shallow buried conditions to deep buried conditions. Traditional shield segments have large volume, low bearing capacity, high consumables, and are easily damaged during installation and transportation. , cannot well adapt to the trend of rapid tunnel growth and increased buried depth, and is inconsistent with the current green construction concept

Method used

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Embodiment Construction

[0031] The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but should not be construed as a limitation on the present application.

[0032] The embodiment of the present application provides a shield segment, which is used to assemble a shield pipe in a tunnel to become the innermost barrier of the tunnel, and plays the role of resisting soil pressure, groundwater pressure and some special loads .

[0033] refer to figure 1 , figure 2 and image 3 , the shield segment of the present application comprises a segment outer shell 1 , a spiral rib 2 and a concrete 3 . The segment outer shell 1 serves as ...

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Abstract

The invention discloses a shield segment, and relates to the field of tunnel engineering, and the shield segment comprises a segment outer shell which is constructed to be arc-shaped; the spiral ribs are arranged in the inner space of the duct piece outer shell, the spiral ribs extend in the circumferential direction of the duct piece outer shell, the number of the spiral ribs is multiple, and the multiple spiral ribs are spaced in the axial direction of the duct piece outer shell; and the concrete is filled in the internal space of the duct piece outer shell so as to at least partially cover the spiral ribs. According to the shield segment, the bearing capacity is improved, meanwhile, the thickness of the shield segment is reduced, and therefore the material utilization rate is increased, the production cost is reduced, and the excavation volume of a tunnel in the construction process is reduced.

Description

technical field [0001] The present application relates to the field of tunnel engineering, in particular to a shield segment. Background technique [0002] Shield segment is the main assembly component of shield construction and 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. The quality of the shield segment is directly related to the overall quality and safety of the tunnel, and affects the waterproof performance and durability of the tunnel. [0003] With the large-scale application of the shield method, shield tunnels have developed from shallow buried conditions to deep buried conditions. Traditional shield tunnel segments have large volume, low bearing capacity, high consumption of consumables, and are easily damaged during installation and transportation. , it cannot well adapt to the trend of rapid tunnel growt...

Claims

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Application Information

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IPC IPC(8): E21D11/08
CPCE21D11/08
Inventor 程实毕经龙王泽源邹奕翀
Owner CCTEG BEIJING HUAYU ENG
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