庙沟铁矿露天边坡岩体参数试验分析  

Experimental Analysis of Open-pit Slope Rock Mass Parameters in Miaogou Iron Mine

作　　者：张子祥[1] 许雁超[1] 杨天鸿[2] 李海洲[2] 

机构地区：[1]河北钢铁集团矿业有限公司庙沟铁矿 [2]东北大学资源与土木工程学院

出　　处：《金属矿山》2011年第8期6-9,14,共5页Metal Mine

基　　金：国家自然科学基金项目(编号:50874024;10872046;50904013);教育部重点科技项目(编号:107033);教育部直属高校基本科研业务费团队项目(编号:NO90101001);博士点基金项目(编号:200801450003)

摘　　要：针对庙沟铁矿露天采场边坡岩体强度低、稳定性差的特点,在系统的现场工程地质、水文地质、岩体结构与岩性分布调查和矿岩物理力学性质试验基础上,结合符合现代岩石力学原理的数值模拟和极限平衡相结合的方法,依据所得岩体力学参数,应用Geo-slope进行岩体参数反演分析,确定了符合实际的边坡岩体力学参数指标,为保证该矿加陡扩帮分析的合理性和可靠性分析提供了依据。In view of low rock strength and poor stability condition of open-pit slope in Miaogou iron mine,and based on systematical field investigation on engineering-geological condition,hydro-geological condition,rock mass structure,physical and mechanical properties of rock mall of the open-pit slope,the back analysis of rock mass parameters was made by applying the Geo-slope to determine the proper mechanical parameters index of rock mass,with the combination of the numerical simulation and the limit equilibrium method of the principle of the modern rock mechanics,and with rock mass parameters obtained.The study provides a basis for ensuring reasonability and reliability of the slope expansion in the mine.

关 键 词：庙沟铁矿 岩体参数 极限平衡 反演分析 

分 类 号：TU457[建筑科学—岩土工程]