摘要
路堑边坡走向与岩层走向夹角大小对顺层岩质边坡稳定性有影响,但究竟二者关系如何,是设计人员关心的问题。在实际工程中,陡倾状顺层岩质边坡不稳定岩体可以刷方,但清方量较大的缓倾角和中等倾角顺层岩质边坡,其开挖松弛区范围也是设计人员关心的问题。利用地质力学模型试验方法,对上述两个问题进行了探讨,给出了确定开挖松弛区范围的方法,以及顺层岩质边坡的边坡走向与岩层走向夹角的上限值。
The stability of consequent rock slope is related to the intersecting angle between the strike directions of the cutting slope and strata, but the exact relation is always unknown in specific practical cases. The unstable rock mass on the bedrock with a high dip angle may be dug out. But it may be very expensive to dig all rock mass on the bedrock with medium and low dip angles. So the relaxation region of consequent rock slope is greatly concerned. According to the modeling tests, the method to determine relaxation region is explained. And the upper limit of intersecting angle between the strike directions of the cutting slope and strata is also obtained.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第5期840-845,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
铁道部科研资金资助项目(2002G003–01–02)
