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Risk Analysis and Assessment of Shield Tunnel Construction in Karst Area
Under the complex geological conditions such as karst, there are many factors influencing the construction of subway shield tunnel, the process is complex, the engineering risk is high, the difficulty is big, and the engineering accident consequence is serious, so it is of great significance to identify and evaluate the construction risk. Taking Guiyang Rail Transit Line 3 as an example, the main risks in its construction can be divided into four categories. Based on these four risks, a risk assessment index system for shield tunnels in karst areas is established. On this basis, the expert survey method based on WBS-RBS technology is used to conduct qualitative analysis of risks, and the weight of each risk factor is determined by AHP. The concept of risk index is introduced on the basis of risk estimation. The risk level of the main risk factors and the total risk level of the project are obtained. It has a certain reference significance for the construction safety control of similar projects.
Risk Analysis and Assessment of Shield Tunnel Construction in Karst Area
Under the complex geological conditions such as karst, there are many factors influencing the construction of subway shield tunnel, the process is complex, the engineering risk is high, the difficulty is big, and the engineering accident consequence is serious, so it is of great significance to identify and evaluate the construction risk. Taking Guiyang Rail Transit Line 3 as an example, the main risks in its construction can be divided into four categories. Based on these four risks, a risk assessment index system for shield tunnels in karst areas is established. On this basis, the expert survey method based on WBS-RBS technology is used to conduct qualitative analysis of risks, and the weight of each risk factor is determined by AHP. The concept of risk index is introduced on the basis of risk estimation. The risk level of the main risk factors and the total risk level of the project are obtained. It has a certain reference significance for the construction safety control of similar projects.
Risk Analysis and Assessment of Shield Tunnel Construction in Karst Area
Wang, Xiang (author) / Lu, Haolun (author) / Su, Wanying (author) / Zhu, Xiaohui (author)
2022-11-25
4725995 byte
Conference paper
Electronic Resource
English
Prediction of Ground Subsidence Caused by Shield Tunnel Construction Under Hidden Karst Cave
| Online Contents | 2022
| European Patent Office | 2021