期刊论文

Analysis of Deformation of Tunnel Surrounding Rock Considering Effect of Time and Space

中文

公路交通科技

1002-0268

2016

33

7

91-96

10.3969/j.issn.1002-0268.2016.07.014

国家自然科学基金项目（41202057）；

本校为第一机构

为了同时考虑隧道开挖的时空效应,以某高速公路隧道开挖支护工程为背景,通过现场围岩的变形监测分析,探讨了围岩与衬砌的相互关系。利用理论推导方法建立了同时考虑时空效应的隧道围岩变形修正计算公式,该公式包含了时间参数,可确定达到不同衬砌位移及围岩位移所需要的时间。然后,针对隧道拱顶下沉、周边收敛、围岩压力和初衬内力,开展了隧道二衬合理支护时机的监测分析,从而确定了围岩变形修正公式中的待定系数,并最终确定隧道衬砌的合理支护时机,得到的结果能够指导现场施工并为后续类似的隧道工程提供参考和借鉴。

In order to consider both the effect of time and space of tunnel excavation , taking an expressway tunnel as the engineering background , the relationship of surrounding rock and lining is discussed through monitoring and analysing the deformation of surrounding rock .The correction formula of deformation of tunnel surrounding rock considering the effect of time and space is proposed by theoretical derivation .The formula contains the time parameter , and can be used to determine the time it takes for the displacement of surrounding rock and lining reaching different magnitudes .Then, in view ...