Abstract：Research purposes: In view of the relatively obvious randomness of segment design，such as the calculation method is lack of corresponding heoretic support，the calculation mode adopted can not reflect the actual force conditions of segment，the interaction between formation and segment can not be embodied，and obvious deviation dose exist between calculation parameters and actual situation ，in order to enforce the reliability and accuracy of segment design，further study of some main issues related is required．
Research conclusions:Through comparison and analysis，as for lining structure，the beam － spring mode should be adopted in stress analysis． The load direction of groundwater pressure should align with tunnel radius，reaction force at the arch bottom should be determined through the comparison between buoyancy and the vertical total load ，and the interaction between ground and segment should be modeled by radial and tangential springs． Furthermore ，the dimension of sealing gasket in segment joints should be determined by numerical simulation ，the release coefficient of ground stress can be adopted to simulate the disturbance of surrounding formation due to tunneling ，and the control of the upward movement of tunnel lining should be realized by the minimum shield stress of grout．
戴志仁. 盾构隧道管片设计若干问题研究与探讨[J]. 铁道工程学报, 2012, 29(6): 65-70.
DAI Zhi － ren. Study and Discussion on the Issues about Segment Design of Shield Tunnel. 铁道工程学报, 2012, 29(6): 65-70.
He Chuang，Zhang Jiangang，Su Zongxian． Structural Mechanical Characteristics of Underwater Shield Tunnel with Large Cross Section［M］． Beijing: Science Press， 2010．
［2］ 胡如军． 盾构隧道衬砌管片设计理论研究［D］． 南京:河海大学，2002．
Hu Rujun． Research of Design Theory of Lining Segment for Shield Tunnel ［D］． Nanjing: Hohai University，2002．
［3］ Atsushi K． On the Design Method of the Shield Tunnel Lining［J］． From Memories of the School of Science and Engineering，1992(56):125 － 177．
China Railway Fist Survey and Design Institute Group Co． Ltd． The Overall Project Design of Lanzhou Metro Line 1 at the First Stage［Z］． Xi'an:China Railway Fist Survey and Design Institute Group Co． Ltd，2011．
［5］Goodman R E，Taylor R L，Brekke T L． A Model for the Mechanics of Jointed Rock［J］． J． Soil Mech． and Found．，Engrg． Div．，ASCE，1968(5):637 － 660．
Yin Zongze，Zhu Hong，Xu Guohua． The Deformation and Mathematical Model of Contact Surface between Soil and Structure ［J］． Journal of Geotechnical Engineering，1994(3):14 － 22．
［7］ 孙钧，汪炳鉴． 地下结构有限元法解析［M］． 上海:同济大学出版社，1988．
Sun Jun， Wang Bingjian． Finite Element Method Analysis of Underground Structures［M］． Shanghai: Tongji University Press，1988．
Liu Yin，Zhang Dongmei，Huang Hongwei． Analysis of Mechanical of Water Leakage Induced by Longitudinal Uneven Settlement of Shield Tunnel［J］． Journal ofRailway Engineering Society，2011(5):66 － 70．
Xiang Ke， Shi Xiuwei． Design and Optimization of Elastic Gasket Section of Shield Tunnel Lining ［J］． Chinese Journal of Underground Space and Engineering，2008(2):361 － 364．
［10］ 戴志仁． 软土地区盾构隧道同步注浆机理与工程应用研究［D］． 上海:同济大学，2010．
Dai Zhiren． Sdudy on the Mechanism and Engineering Application of Simultaneous Backfill Grouting in Shield Tunneling in Soft Soils ［D］． Shanghai: Tongji University，2010．
2012, Vol. 29 
版权所有 © 2014 《铁道工程学报》编辑部