Application of Advanced Geological Prediction in Tunnel Construction

2021 ◽  
Keyword(s):  
Tunnel Construction ◽  
Geological Prediction

Analytical model for assessing collapse risk during mountain tunnel construction

2016 ◽  
Vol 53 (2) ◽  
pp. 326-342 ◽  
Author(s):  
Guo-Hua Zhang ◽  
Yu-Yong Jiao ◽  
Li-Biao Chen ◽  
Hao Wang ◽  
Shu-Cai Li
Keyword(s):  
Risk Factors ◽  
Risk Assessment ◽  
Index System ◽  
Assessment Model ◽  
Tunnel Construction ◽  
Assessment Index ◽  
Assessment Index System ◽  
Geological Prediction ◽  
Tunnel Collapse ◽  
Mountain Tunnel

Risk management for safety in mountain tunnel construction is of great significance. However, existing research lags behind engineering applications. In this paper, the risk of mountain tunnel collapse is used as an example to illustrate a new assessment method based on case-based reasoning, advanced geological prediction, and rough set theory. First, the risk surroundings and risk factors involved in tunnel collapse are integrated and summarized, and a risk assessment index system is established for tunnel collapse. At the same time, because the dynamic response parameters obtained by the advanced geological prediction usually indicate a typical geological structure, sensitive response parameters are introduced in the assessment index system. Advanced risk assessment can be performed for tunnel sections at a certain distance ahead of the tunnel face. Second, the major risk surroundings and the advanced geological prediction results are analyzed for the tunnel under assessment. Cases with similar attribute characteristics are selected via comparison with previous cases. Attribute reduction and calculation of weights are subsequently performed for the risk surroundings and risk factors of similar cases based on the attribute significance theory of rough sets. Finally, index screening and objective weights are applied in the fuzzy comprehensive assessment model. The results of this paper can be used to improve the theoretical level and reliability of risk assessment in tunnel safety and serve as a reference for tunnel construction.

Application of TSP Tunnel Geological Prediction for Case Study

2012 ◽  
Vol 490-495 ◽  
pp. 1816-1820
Author(s):  
Shu Lin Dai ◽  
Chao Fang Ma
Keyword(s):  
Tunnel Construction ◽  
Prediction System ◽  
Main Principle ◽  
Engineering Project ◽  
Measuring Point ◽  
Broad Application ◽  
Geological Prediction ◽  
Collection Methods ◽  
Application Prospects

Tunnel geological prediction is of great significance for the prediction of rock and instructing the tunnel constrution. By means of specifying the main principle of the tunnel geological prediction and introducting engineering project, the effectiveness of TSP geological prediction system in the application of tunnel geological prediction is analyzed and demonstrated, revealing the broad application prospects of this system in tunnel construction. This paper introduced the system of measuring point layout and data collection methods, pointing out the feasible method to improve the veracity of prediction results, and a few suggestions are given to tunnel construction, providing a guarantee for ensuring the safety of construction.

Study on the Methods of Advanced Geological Prediction of Double-Arch Highway Tunnel in Karst Area

2012 ◽  
Vol 594-597 ◽  
pp. 1275-1279
Author(s):  
Chong Xiong He ◽  
Chun Jiao Lin ◽  
Xiao Yao
Keyword(s):  
Prediction Method ◽  
Construction Method ◽  
Karst Area ◽  
Tunnel Construction ◽  
Guangxi Province ◽  
Highway Tunnel ◽  
Geological Prediction

The paper pointed out a comprehensive advanced geological prediction method combining geological radar with advanced horizontal borehole according to the highway double-arch tunnel construction method in karst area, and had a successful application in the highway double-arch tunnel construction in karst area in Guangxi Province. It was proved in the tunnel construction that the prediction effect of the comprehensive geological prediction method was ideal.

Research on Advanced Geological Prediction in Highway Double-Arch Tunnel Construction

2012 ◽  
Vol 193-194 ◽  
pp. 805-809
Author(s):  
Shuang Mei Tang ◽  
Chun Jiao Lin ◽  
Xiao Yao ◽  
Chong Xiong He
Keyword(s):  
Prediction Method ◽  
Construction Safety ◽  
Karst Area ◽  
Good Effect ◽  
Tunnel Construction ◽  
Practical Application ◽  
Highway Tunnel ◽  
Survey Line ◽  
Geological Prediction ◽  
Advanced Drilling

In this paper, a comprehensive advanced geological prediction method in highway double-arch tunnel construction was put forward, which could take the advantages of geological radar technology and the horizontal of advanced drilling in karst area. The method would give relatively accurate judgments in the construction of the highway double-arch tunnel by using different geological radar survey line layout, combining with advanced horizontal hole, which ensure the construction safety of the tunnel. The practical application of comprehensive advanced geological prediction in double-arch highway tunnel in karst area had received a good effect, and it showed the method had a certain guiding function.

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