摘要
在假设岩体为连续、均质、各向同性的弹性体,只承受自重应力作用,并对其进行椭圆形喇叭曲面开挖情况下,以椭圆形喇叭曲面边坡上一椭圆岩环为力学模型,假定此岩环的环向应力在各点均相等,且以库仑准则作为岩环的破坏准则,推导出了椭圆形深凹边坡临界稳定性坡面的形状。该边坡形状与传统的稳定性理论确定的边坡形状相比较,可在保证边坡稳定的前提下减少巨大的废石剥离量。
Taking the oval-shaped rock circle which is on the slope of an oval-shaped furrow pit as an example and supposing that the stress in circle direction of the rock circle is equal at every point,the stable slope configuration is derived for the oval-shaped furrow pit under the conditions,that is,the rock mass is continuous,homogeneous and elastic,it is only loaded by its dead weight is excavated as an oval-shaped trumpet. A great quantity of stripped waste rock can be reduced by the slope configuration determined by the proposed model,as compared with that determined with the traditional theory of slope stability.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第4期603-606,共4页
Chinese Journal of Rock Mechanics and Engineering
关键词
岩石力学
深凹露天矿
边坡稳定性
剥采比
粘聚力
内摩擦角
rock mechanics,furrow pit,slope stability,ratio of stripping-to-mining,cohesion,internal friction angle
