摘要
采用理论分析和数值分析相结合的方法,基于实际隧道塌方实例,利用ANSYS软件建立隧道贯通段开挖三维模型,分析水平岩层隧道在施工过程中围岩以及支护结构的受力、变形规律,同时深入分析隧道贯通段塌方产生的力学机理和地下水、爆破振动、空间效应和施工等影响因素。研究成果可为深埋隧道现场判断隧道贯通塌方起因和预测隧道塌方等提供参考。
This paper establishes a 3D model of excavation of the tunnel through section by means of the ANSYS software,based on the actual tunnel collapse examples in the method combining theoretical analysis and numerical analysis,analyzes the stress and deformation rules of wall rocks and supporting structures of tunnel in flat rock strata during construction,and meanwhile deeply analyzes the mechanical mechanism produced by collapse of tunnel through section and influence factors such as underground water,blasting vibration,spatial effect and construction,etc. The research results can provide a reference for on-site judgment of reasons of tunnel through collapse and prediction of collapse,etc. of deep-buried tunnels.
出处
《公路交通技术》
2016年第2期87-92,共6页
Technology of Highway and Transport
关键词
隧道
水平岩层
贯通段
变形
塌方机理
tunnel
flat rock strata
through section
deformation
collapse mechanism
