摘要
通过地质分析的手段,对某缓倾岩层隧道塌方机理进行了详细分析,并总结了缓倾层状岩体和块状岩体两种类型塌方的地质力学模型。在此基础上,运用离散元强度折减法,探讨了强度折减路径与围岩稳定性判定指标的适用性,并得到了两种情况下隧道的整体安全系数。
Detailed analysis of the mechanism of rock tunnel collapse is made by geoanalytical technologies and geomechanical models of the slow-dipping layered rockmass and blocked rock mass are summarized. Based on these,it explores the applicability of criteria for strength reduction path and surrounding rock stability by strength reduction method based on UDEC. Finally it comes to the safety factors of tunnel under these two conditions.
出处
《铁道建筑技术》
2015年第2期47-50,共4页
Railway Construction Technology
关键词
缓倾岩层隧道
塌方机理
折减路径
稳定性判定指标
安全系数
gently inclined rock mass tunnel
collapse mechanism
the path of reduction
stability criterion
safety factor
