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Model Test on the Tunnel Reinforced by Prestressed Anchor Cable

ZHANG Xiang-yang,GU Jin-cai,SHEN Jun,CHEN An-min(The Third Scientific Research Institute of the Corps of Engineers of PLA,Luoyang 471023,China)  
In this paper,the effect of the prestressed anchor cable on the tunnel with long span and high wall is studied on large experiment equipment by the model test under the plain strain condition.The results show that the anchor cable can raise the rock's stiffness and reduce the displacement and it is effective in the wall.This article provides some experiment basis for researching the anchor principle and designing under the similar condition.
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