›› 2011, Vol. 25 ›› Issue (6): 23-.

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Studies on Lining Parameters of a Large Cross Section Tunnel in the City 

LOU Xiao  ming1, GONG  Yan  feng2   

  1. (1. College of Zijin Mining, Fuzhou University, Fuzhou 350108; 
     2. China Railway Siyuan Survey and Design Group Co. Ltd, Wuhan 430063, China)
  • Received:2011-06-18 Online:2011-12-20 Published:2012-01-15

Abstract: The Jinshazhou Tunnel of Wuhan\|Guangzhou High\|speed Rail Project is northwest of Guangzhou City. In order to assure the safety and the cost effectiveness of this tunnel during construction and operation, the lining parameters for the primary and quadric lining supports are studied. Based on the design codes and the site geotechnical conditions, the primary and quadric lining support parameters are obtained for the Class IV surrounding rock masses by using the Analogy Method. Then, the finite element analyses are performed on the same Class IV surrounding rock masses by considering the effect of groundwater. Therefore, the stress changes on the primary and quadric supporting structures can be predicted. These approaches provide a viable solution for the design and construction of this large cross\|section tunnel in an urban area.