Tunnel construction dynamic risk assessment method based on monitoring measurement

A risk assessment and dynamic risk technology, applied in data processing applications, instruments, calculations, etc., can solve the problems of inability to accurately assess the safety status of tunnel construction and difficult to control the safety risks of tunnel construction.

Active Publication Date: 2019-09-06
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

In the past, the static risk assessment method was used to assess the tunnel risk, and the weight of the risk assessment index was determined by expert scoring. The weight of the risk assessment index determined in this way is very subjective, and it is difficult to control and dynamically track the tunnel construction. Safety risks, unable to make an accurate assessment of the safety status of tunnel construction

Method used

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  • Tunnel construction dynamic risk assessment method based on monitoring measurement
  • Tunnel construction dynamic risk assessment method based on monitoring measurement
  • Tunnel construction dynamic risk assessment method based on monitoring measurement

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Embodiment 1

[0032] The specific process of the dynamic risk assessment method for tunnel construction based on monitoring and measurement involved in this embodiment includes four steps: establishment of system, establishment of grades and standards, description of scoring values ​​and calculation of weight values:

[0033] (1) Establish a system: According to the characteristics of the monitoring and measurement of the tunnel new Austrian method, establish a dynamic risk assessment index system for tunnel construction safety, as shown in the following table:

[0034]

[0035] (2) Establishing grades and standards: Quantitatively analyze the construction status of each risk assessment indicator according to the tunnel monitoring and measurement specifications, and establish the construction status grade and construction risk status evaluation criteria of each risk assessment indicator, as shown in the following table:

[0036]

[0037] (3) Descriptive scoring: According to the "Code ...

Embodiment 2

[0045] The dynamic risk assessment method for tunnel construction based on monitoring and measurement involved in this embodiment identifies the risk factors of the ZK5+310-ZK5+495 bid section on the left line of the Zuomashan Mountain Highway Tunnel, and determines the dynamic risk assessment of the Zhuomashan Mountain Highway Tunnel The index system, as shown in the table in step (1), from April 1st to April 7th, 2019, collected data on the dynamic risk assessment indicators of Zhuomashan Mountain Highway Tunnel every day, and continuously monitored and measured for one week. Through the monitoring and measurement data, we can better analyze the change law of each evaluation index, understand the stability of the surrounding rock and the support structure, and use the linear regression analysis for the monitoring and measurement displacement according to the regression analysis method, and use the moving average for the monitoring and measurement stress Regression analysis, r...

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Abstract

The invention belongs to the field of safety control of underground space engineering. The invention relates to a tunnel construction dynamic risk assessment method based on monitoring measurement. The method comprises steps of carrying out quantitative analysis on the construction state of each risk assessment index according to the tunnel monitoring and measuring standard; establishing a construction state grade evaluation standard of each risk evaluation index; adopting a percentage system assignment mode for each risk assessment index construction state level according to the highway tunnel design standard; establishing a tunnel construction safety dynamic risk assessment index construction state assignment interval; comparing the data processed by each index with each risk assessmentindex construction state grade evaluation criterion and a tunnel construction safety dynamic risk assessment index construction state assignment interval to obtain a construction state value of each risk assessment index; and substituting the construction state value of each evaluation index into a state variable weight formula to determine the state weight value of each index, carrying out dynamic analysis on the tunnel construction safety risk, and carrying out real-time control and dynamic tracking on the tunnel construction safety risk.

Description

[0001] Technical field: [0002] The invention belongs to the field of safety control of underground space engineering, and relates to a dynamic risk assessment method for tunnel construction based on monitoring and measurement. [0003] Background technique: [0004] The weights of risk assessment indicators are closely related to the construction status of each indicator in the construction process. During tunnel construction, the construction status of each indicator is constantly changing, resulting in constant changes in the weights of each risk assessment indicator. The weight of tunnel risk assessment index is an important parameter of tunnel construction safety status. In the past, the static risk assessment method was used to assess the tunnel risk, and the weight of the risk assessment index was determined by expert scoring. The weight of the risk assessment index determined in this way is very subjective, and it is difficult to control and dynamically track the tunne...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/08G06Q50/26
CPCG06Q10/0635G06Q50/08G06Q50/265
Inventor 王玉田刘冠男周均法崔佳庆王宁
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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