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Optimization design method and structure of corrugated steel lining reinforcement parameters based on tunnel lining disease detection

A corrugated steel plate and optimized design technology, applied in tunnel lining, tunnel, shaft lining, etc., can solve problems such as inability to fully guarantee the accuracy of relevant parameters, limit failure of non-bearing capacity, and enhancement of corrugated steel plate specifications, so as to avoid blindness and Randomness, reducing construction difficulty and improving construction efficiency

Active Publication Date: 2022-04-26
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has three shortcomings. The first is that the rationality of the corrugated steel lining reinforcement parameters largely depends on the engineer's work experience in similar tunnel strata, hydrogeology, surrounding rock grades, buried depths, and lining disease degrees. The accuracy of the relevant parameters cannot be fully guaranteed; the second disadvantage is that the damage of the corrugated steel plate arch structure as a steel structure is often due to the buckling-induced instability failure rather than the ultimate failure of the bearing capacity, so the calculation value is only based on the force deformation The feedback adjustment is obviously not comprehensive, and the stability analysis of the corrugated steel plate lining should be supplemented; the third disadvantage is that the overall load-carrying conditions of the damaged secondary lining, filling layer and corrugated steel plate are not considered, resulting in a larger calculation value of the corrugated steel plate stress and deformation. It may lead to further strengthening of corrugated steel plate specifications, resulting in design waste

Method used

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  • Optimization design method and structure of corrugated steel lining reinforcement parameters based on tunnel lining disease detection
  • Optimization design method and structure of corrugated steel lining reinforcement parameters based on tunnel lining disease detection
  • Optimization design method and structure of corrugated steel lining reinforcement parameters based on tunnel lining disease detection

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Embodiment 1

[0070] see Figure 1 to Figure 5 , an optimal design method for corrugated steel lining reinforcement parameters based on tunnel lining defect detection, including the following steps:

[0071] S1: The geometric parameter design of the corrugated steel plate 3, determine the three parameters of the corrugated steel plate 3 wavelength P, wave height D, and plate thickness t;

[0072] S11: According to the results of on-site inspection and investigation, obtain the non-destructive testing secondary lining 1 thickness table of the damaged section of the tunnel, and compare the current evaluation standards to determine the lining defects and disease levels (slight, serious, serious, and extremely serious). If the level of lining damage is extremely serious, use corrugated steel plate 3 lining reinforcement parameter measures to deal with it, otherwise use other measures to deal with it.

[0073] S12: Select the most unfavorable section according to the non-destructive testing sec...

Embodiment 2

[0116] The present invention provides a corrugated steel lining reinforcement structure based on tunnel lining defects, which includes several corrugated steel plates 3, and several corrugated steel plates 3 are connected by corrugated steel plate transverse splicing members 5 and corrugated steel plate longitudinal connecting members 9 to form a tunnel secondary lining Corrugated steel lining in contour shape, the corrugated steel lining is fixedly connected with the tunnel secondary lining 1 through the transverse connecting anchor bolt 4, one end of the transverse connecting anchor bolt is pre-embedded and fixed in the tunnel secondary lining, the transverse The other end of the connecting anchor passes through the filling layer 2 and the corrugated depression on the outer corrugated surface of the corrugated steel plate and is connected with the nut. The centerline of the transverse connection anchor is located at the center of the corrugation depression. The arch feet of ...

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Abstract

The invention discloses a method and structure for designing corrugated steel lining reinforcement parameters based on tunnel lining defect detection. It is composed of 5 parts, including safety check calculation of corrugated steel plate, and the design is completed only after all safety check calculations are passed, otherwise, the design process needs to be re-executed. The method for designing corrugated steel lining reinforcement parameters based on tunnel lining defect detection of the present invention can provide a reasonable and effective method for the selection and quantitative design of tunnel corrugated steel lining reinforcement structures, avoiding the blindness and randomness of traditional design methods, and The entire design process has clear quantification, convenient implementation, safety and reliability, economical applicability, scientific rationality, and has broad prospects for promotion.

Description

technical field [0001] The invention belongs to the field of tunnel lining disease treatment and design, and in particular relates to a method and structure for optimizing design parameters of corrugated steel lining reinforcement parameters based on tunnel lining disease detection. Background technique [0002] With the continuous development of my country's economy, the continuous improvement of comprehensive national strength and the continuous enhancement of construction technology, tunnel engineering has achieved unprecedented development, and the operating mileage of tunnels has continued to increase. Restricted by the technical level of geological survey, design, construction, monitoring, operation, management and maintenance, etc., during the use of the tunnel, cracks and blocks, water leakage, voids behind the lining, insufficient thickness of the lining, insufficient concrete strength, and arching and lowering of the tunnel bottom Shen and other diseases are increa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/17G06F30/13G06F30/20G06Q50/08E21D11/00E21D11/20E21D20/00G06F111/10G06F119/14
CPCG06Q50/08E21D11/20E21D20/00E21D11/00
Inventor 何卫焦齐柱杨剑王伟吴建军陈创许建莫阳春姚捷郑强
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP