2013, Volume 15, Issue 12
Strategic Study of CAE >> 2013, Volume 15, Issue 12
Construction risk estimation of TBM and discussion on key risk countermeasures of Bohai Strait tunnel
1. Technology Center of China Railway Tunnel Group Co. Ltd., Luoyang, Henan 471009, China;
2. China Railway Tunnel Group Co. Ltd., Luoyang, Henan 471009, China;
3. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
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Abstract
The identification and estimation of construction risks of Bohai Strait tunnel are made by means of analytic hierarchy process (AHP) fuzzy comprehensive evaluation method, with the construction risks estimation of existing devised program of Bohai Strait tunnel as an example. The results show that the construction risk grade of Bohai Strait tunnel is grade Ⅲ. The key construction risks of Bohai Strait tunnel, including manufacturing of main bearing of tunnel boring machine (TBM), mud/water bursting and ventilation,are analyzed, and the countermeasures and problems to be solved are presented. The paper can provide reference for the construction program determination of Bohai Strait tunnel and for the planning,design and construction program of sea-crossing tunnels in the future.
Keywords
Bohai Strait tunnel ; analytic hierarchy process ; fuzzy evaluation ; risk estimation ; risk countermeasure
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