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《Modern Tunnelling Technology》 2004-01
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Stability analysis for tunnels with cracked linings and the techniques for repairing the cracked linings

Li Zhiguo (Scientific Institute of China Railway Tunneling Group, Luoyang 471009) Zhang Yujun (Wuhan Institute of Geomechanics, China Academy of Sciences, Wuhan, 430071)  
Lining cracks will affect the bearing capacity and the safety of tunnels. In this paper, cracks on linings and the causes for their occurrence in railway tunnels are analyzed, the degrees of influence of different crack widths are classified with the stability of the tunnels with cracked linings studied by the method of fracture mechanics. Finally, the techniques for repairing the cracks are proposed.
【CateGory Index】: U451
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