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Force testing device for shield segments during the construction of connecting passages of shield tunnels

A technology of shield segment and connection channel, which is applied in measuring devices, tunnels, mining devices, etc., can solve the problems of high price and low economic benefits.

Active Publication Date: 2021-07-27
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantages of this method are: expensive, low economic benefit

Method used

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  • Force testing device for shield segments during the construction of connecting passages of shield tunnels
  • Force testing device for shield segments during the construction of connecting passages of shield tunnels
  • Force testing device for shield segments during the construction of connecting passages of shield tunnels

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0033] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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PUM

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Abstract

The invention provides a device for testing the force of a shield segment during the construction of a communication channel of a shield tunnel. Including: the tested shield segment, earth pressure cell group, concrete strain gauge group, steel bar stress gauge group and gasket type one-way stress gauge group; the shield tunnel segment consists of a capping block, two connecting blocks and six It is composed of standard blocks and is a ring structure. The earth pressure cell group includes the earth pressure cell installed at the centroid of the outer side of each shield segment. Concrete strain gauges on both sides, the steel bar stress gauge group includes steel bar stress gauges on both sides of the inner and outer sides welded in the direction of the main reinforcement of each shield segment, and the gasket type one-way stress gauge group includes There is one gasket-type unidirectional stress gauge in the circumferential direction and two longitudinal gaskets at the bolt hole of the structural segment connection surface. The device of the invention can realize the long-term monitoring of the stress state of the surrounding shield segments during the construction process of the communication channel of the shield tunnel, and analyze the force development law of the shield segment under the space-time characteristics.

Description

technical field [0001] The invention relates to the technical field of construction monitoring of a communication channel of a shield tunnel, in particular to a device for testing the force of a shield segment during the construction of a communication channel of a shield tunnel. Background technique [0002] In recent years, with the rapid development of infrastructure construction such as highways, railways and urban rail transit in China, more and more tunnel projects are constructed using the shield method. It is used as a communication channel to ensure that the personnel inside the tunnel can avoid danger in time in case of an emergency. The construction of communication passages between shield tunnels will have a great impact on the lining segments around the communication passages due to factors such as segment removal, soil excavation, lining construction, segment assembly methods, and bolt installation. Bring safety hazards to construction. In addition, the stres...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/08E21F17/18G01D21/02G01L1/10
CPCE21D11/08E21F17/18G01D21/02G01L1/10
Inventor 谭忠盛唐伟陈雪莹李宗林
Owner BEIJING JIAOTONG UNIV