MODEL EXPERIMENT STUDY ON EFFECT OF DEFORMATION JOINTS ON ROAD TUNNEL RESISTING DESTRUCTION BY THRUST FAULT STICK-SLIP DISLOCATION
LIU Xuezeng1，GUO Biao2，LI Xuefeng3，SANG Yunlong4
(1. Civil Engineering Information Technology Research Center of Ministry of Education，Tongji University，Shanghai 200092，China；2. College of Civil Engineering，Tongji University，Shanghai 200092，China；3. Xuhui Binjiang Investment and Development Construction Co.，Ltd.，Shanghai 200030，China；4. Shanghai Tongyan Civil Engineering Technology Co.，Ltd.， Shanghai 200092，China)
By means of model experiment，the effect of deformation joints on road tunnel resisting destruction by thrust fault stick-slip dislocation is analyzed. Considering two different cases(tunnel with and without deformation joints)，we focus on the following characteristics caused by thrust fault stick-slip dislocation：ground deformation，strain of tunnel，failure characteristics of tunnel. The results show that deformation joints make tunnel liner avoid the direct shear force. The maximum longitudinal strain at the top of the tunnel with deformation joints is 1/7 of that without deformation joints. Deformation joints significantly decrease the maximum longitudinal strain in tunnel liner，improving the distribution of longitudinal strain. Deformation joints improve the failure mode of tunnel，making the degree of damage lighter than tunnel without deformation joints obviously. Tunnel sections do not collapse，the damage focuses on area nearby the deformation joints in the range of fracture zone.
刘学增1，郭 彪2，李学锋3，桑运龙4. 变形缝对跨断层隧道抗错断影响的模型试验研究[J]. 岩石力学与工程学报, 2015, 34(S2): 3837-3843.
LIU Xuezeng1，GUO Biao2，LI Xuefeng3，SANG Yunlong4. MODEL EXPERIMENT STUDY ON EFFECT OF DEFORMATION JOINTS ON ROAD TUNNEL RESISTING DESTRUCTION BY THRUST FAULT STICK-SLIP DISLOCATION. , 2015, 34(S2): 3837-3843.
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2015, Vol. 34 
