Discussion on the Construction Management of Sichuan-Tibet Railway Tunnel Based on System Engineering Methodology
(1 China Railway No.2 Engineering Group Co.，Ltd, Chengdu 610032；2 Guangdong Provincial Key Laboratory of Deep Earth Sciences and Geothermal Energy Exploitation and Utilization, Institute of Deep Earth Sciences and Green Energy, College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060)
Abstract：
In order to comprehensively improve the ability and means to deal with the complex problems in the con? struction of the Sichuan-Tibet railway tunnel project, a tunnel construction management system for the Ya ′an-Linzhi section of the Sichuan-Tibet Railway is established based on system engineering methodology by taking time dimension, logical dimension, knowledge dimension and environmental dimension as the basic structure. Aiming at the main challenges faced by the Sichuan-Tibet railway tunnel project, it systematically summarizes the countermeasures for the key issues of engineering survey and design, special unfavorable geological condition, construction organization and management in view of the different stages of time dimension, goals of logical dimension and through technology accumulation and research of knowledge dimension,providing a reference for the construction and management of tunnel project of Ya′an-Linzhi section. The research indicates:(1) the tunnel project is critical for the entire Sichuan-Tibet Railway, and so a system engineering methodology based full-cycle construction management system should be established; (2) the main technical challenge of the Sichuan-Tibet railway tunnel is the special complex geological condition, related solutions should be put forward in the feasibility study and design stages and further application research should be conducted in implementation stage to guarantee effectiveness and reliability of the countermeasures; (3) in light of the harsh environmental conditions, extreme geological challenges and super-long construction period of the Sichuan-Tibet Railway tunnel, a higher level of“Four Modernizations”and breakthrough in management innovation are required; (4) aiming at the complexity of the construction and management of the SichuanTibet railway tunnel, no participant can independently handle the management risks of this huge system project and it is necessary to establish a higher-level full-cycle integrated management mechanism, implementing stricter ecological environmental protection and organizing stronger scientific and technological innovation support.
MA Hui1 GAO Mingzhong2
.Discussion on the Construction Management of Sichuan-Tibet Railway Tunnel Based on System Engineering Methodology[J] MODERN TUNNELLING TECHNOLOGY, 2020,V57(3): 1-8
2020, Vol. 57 