高速铁路泥岩隧道二次衬砌受力特性分析 于景龙;靳文强 【期刊名称】《兰州工业学院学报》 【年(卷),期】2017(024)001 【摘 要】通过对富水区路泥岩隧道二次衬砌受力现场监测与数值模拟,分析初期支护与二次衬砌间接触压力随时间与空间的变化情况、计算实测荷载与计算荷载作用下二次衬砌结构的安全系数.研究表明:初期支护与二次衬砌间接触压力在二次衬砌拆模后仍继续增长,二次衬砌压力值右侧大、左侧小,隧道处于偏压状态;实测荷载作用下二次衬砌安全系数远低于计算荷载.研究方法与结论对富水区泥岩隧道二次衬砌的设计与施工具有一定指导意义.%By field monitoring and numerical analysis of the contact pressure between primary lining and secondary lining of mudstone tunnel in water-rich area, the pressure varied with time and space are analyzed and the safety factors to secondary lining under calculation loads and monitoring loads were studied.The study shows that after the form stripping of secondary lining, the contract pressure between initial support and secondary lining keeps increasing, the contact pressure on the left is larger than that on the right, thus the tunnel is under unsymmetrical pressure;the safety factors of secondary lining under monitoring loads are far less than calcaulation loads.The study method and conclusions can provide guidance to the design and construction of the secondary lining of mudstone tunnel in water rich area. 【总页数】5页(P29-33) 【作 者】于景龙;靳文强 【作者单位】兰州交通大学 土木工程学院, 甘肃 兰州 730070;兰州交通大学 土木工程学院, 甘肃 兰州 730070 【正文语种】中 文 【中图分类】U45 【相关文献】 1.花岗岩地层地铁隧道二次衬砌受力特性分析 [J], 曲成平;夏文;李磊;杨恒 2.泥质页岩隧道初期支护和二次衬砌结构的受力状态分析及其对隧道结构稳定性的影响 [J], 袁海清 3.高地温隧道二次衬砌受力特性分析 [J], 孙其清;郑宗溪;谭永杰 4.高速铁路泥岩隧道二次衬砌受力特性分析 [J], 于景龙;靳文强; 5.隧道二次衬砌脱空带模注浆对衬砌结构受力影响的试验研究 [J], 李福海;李瑞;姜怡林;高浩;王奕彬;王佩勋 因版权原因，仅展示原文概要，查看原文内容请购买 本文来源：https://www.wddqw.com/doc/48762efad2f34693daef5ef7ba0d4a7302766cb9.html