Study on Design and Selection Techniques for Large-Diameter Shield Railway Tunnel
(1 China Railway Economic and Planning Research Institute, Beijing 100038; 2 China Railway Design Co., Ltd., Tianjin 300142;3 Beijing University of Technology, Beijing 100022)
Abstract：
Based on the shield design and construction of the Dongjin tunnel on the southwest ring road of Taiyuan railway terminal, an analysis and discussion on adaptability were conducted in terms of engineering geology, hydrogeology, ambient environment and risk management regarding shield tunnel design and shield selection, with the results showing that shield selection is critical for shield tunnel construction, it′s necessary to master detailed geological survey documents, properly choose shield machine and determine the related technical parameters; soil conditioning and grouting system configuration should be improved during shield construction to well control ground settlement; it is feasible for large-diameter earth-pressure balance shield to be adopted in the strata with complex ambient environment and the influence on urban residents is reducing to the largest extent.
TIAN Siming1 ZHAO Yong1 WANG Liqing2 LI Pengfei3
.Study on Design and Selection Techniques for Large-Diameter Shield Railway Tunnel[J] MODERN TUNNELLING TECHNOLOGY, 2019,V56(2): 1-9
2019, Vol. 56 