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Split Mechanism of Lining Structure of Tunnel and Its Quantitative Assessment
Author(s): SONG Ruigang, ZHANG Dingli, WU Dong, LI Pengfei
Pages: 22-
26,35
Year: 2010
Issue:
4
Journal: Journal of Beijing Jiaotong University
Abstract: 隧道衬砌裂损影响衬砌结构的整体稳定性,并易引起渗漏水病害、基床病害和复合型病害等隧道病害,降低衬砌结构的耐久性和安全性.基于衬砌裂损的力学机理分析,将隧道衬砌混凝土裂缝发展过程分为6个阶段,给出每个阶段的状态描述,并针对引起衬砌裂损的隧道衬砌厚度不足及衬砌背后空洞两个影响因素进行深入研究,分别利用隧道衬砌的拉、剪应力集中系数进行计算,明确不同围岩条件下隧道衬砌厚度不足或衬砌背后空洞等因素与衬砌内部...
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