Method for assessing immersed tunnel operation phase health state

An immersed tube tunnel and health state technology, applied in the direction of instruments, data processing applications, resources, etc., can solve problems such as tunnel damage, endangering the safety and smoothness of high-speed driving, and damage

Inactive Publication Date: 2016-08-10
SOUTHEAST UNIV
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  • Abstract
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Problems solved by technology

These tunnel diseases during operation not only endanger the safety and smoothness of high-speed traffic, but also affect the service life of the tunnel
If the disease is not treated in time, it will cause further damage and even destroy the tunnel, resulting in huge economic losses and adverse social impacts
[0004] Traditional structural degradation assessment standards can achieve semi-quantitative and semi-qualita...

Method used

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  • Method for assessing immersed tunnel operation phase health state
  • Method for assessing immersed tunnel operation phase health state
  • Method for assessing immersed tunnel operation phase health state

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, the steps include:

[0026] (1) Obtain the original data on site through monitoring.

[0027] (2) The embodiment of the present invention takes the section of Honggu Tunnel as an example, and the specific monitoring data are as follows:

[0028] Table 1 Monitoring parameters of an immersed tube tunnel section

[0029]

[0030] (3) According to the domestic and foreign engineering practice and the theoretical analysis of the causes of common diseases of immersed tube tunnels, the unfavorable factors affecting the safety of immersed tube tunnels in the operation period are summarized.

[0031] (4) Inductively analyze the selected evaluation indicators and factors by using the AHP, and construct the health status evaluation model of the immersed tube tunnel, as shown in the attached figure 2 As shown, the subordination relationshi...

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Abstract

The invention provides a method for assessing an immersed tunnel operation phase health state. The method comprises steps that inductive analysis on the historical disease data of built immersed tunnels at home and abroad is carried out, and a health state assessment index system is established; a health state assessment model of an assessed immersed tunnel is established by utilizing a hierarchical analytical method; an improved hierarchical analytical method is employed to determine the relative weight of each factor and the weight of each assessment index contained in each factor relative to the factor; fuzzy comprehensive assessment ideas are integrated, and grade comprehensive assessment on the built immersed tunnel health state assessment model is carried out on the basis of preset tunnel health state assessment standards. According to the method, factors such as the environment factor of the immersed tunnel, structural stress, strain and cracks are comprehensively considered, quantitative comprehensive assessment on the immersed tunnel health state in an operation process is realized, and effective support is provided for operation maintenance and decision of the immersed tunnel.

Description

technical field [0001] The invention relates to a method for evaluating the health state of a tunnel structure during operation of an immersed tube tunnel. Background technique [0002] In recent years, with the continuous development of my country's economy, immersed tube tunnels are characterized by fast construction speed, short period, low requirements on foundation strength, shallow buried depth, no impact on navigation after completion, and shorter docking distance between the underwater tunnel part and the onshore part. Advantages such as shortness, etc., have been adopted more in cross-river tunnel schemes at home and abroad, and more than 100 immersed tube tunnels have been built all over the world. [0003] The research and investigation found that under the dual effects of the long-term natural environment and the use environment, the built tunnels will have lining cracks, deformation, water leakage and other diseases to varying degrees with use. These tunnel dise...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/08
CPCG06Q10/0639G06Q50/08
Inventor 徐向春蔡建中刘松玉郭俊童立元张国柱刘睿
Owner SOUTHEAST UNIV
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