摘要
在修建城市双线隧道时,由于地形等因素的限制,隧道间距一般都难以满足普通技术规范的要求。为了分析双线隧道围岩稳定性特征与围岩级别、隧道间距、支护等的变化关系,应用有限元数值计算方法对小线间距双线隧道围岩稳定性进行了详细计算,得出小线间距城市双线隧道最小净距的参考值,并对厦门仙岳山隧道进行了围岩稳定性计算。
When building double-hole urban tunnels,the interval is hard to meet the demand of normal design code because of the terrain s limits of the city. In order to investigate the influence of different surrounding rocks,double-hole tunnel interval and supporting on tunnel stability,a series of calculations and analyses are carried out by using 2-D FEM,and the reference values of the minimum interval of double-hole urban tunnel are obtained. Also,the rock stability of Xianyueshan tunnel in Xiamen is analyzed.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2002年第9期1335-1338,共4页
Chinese Journal of Rock Mechanics and Engineering
关键词
小线间距
城市
双线隧道
围岩
稳定性
有限元法
small interval,stability of surrounding rocks,finite element method
