离子型稀土原地浸矿边坡稳定影响因素敏感性分析  

Sensitivity Analysis on the Influence Factors of Slope Stability for Ion-absorbed Rare Earth Ore by In-situ Leaching

作　　者：饶运章[1] 张永胜[1] 饶睿 王丹[1] 王柳[1] 

机构地区：[1]江西理工大学,江西赣州市341000 [2]赣州有色冶金研究院,江西赣州市341000

出　　处：《矿业研究与开发》2015年第9期60-63,共4页Mining Research and Development

基　　金：国家高技术研究发展计划(863计划)项目(2012AA061901);2011年度江西省安全生产重大课题项目(JXAJ2011002)

摘　　要：为研究各因素对离子型稀土矿原地浸矿边坡稳定的影响,进行了单因素和多因素敏感性分析。首先,结合离子型稀土矿原地浸矿边坡特征,分别选取表土层和全风化矿层的重度、黏聚力、内摩擦角以及原地浸矿注液强度等7个因素作为研究对象;其次,建立非均质边坡平面模型并计算边坡安全系数,利用安全系数进行原地浸矿边坡稳定影响因素敏感性分析。工程实例分析结果表明:边坡的重点监测位置是表土层和全风化矿层交接面,重点监控因素是注液强度。To study the influence of each factor on slope stability of ion-absorbed rare earth ore by in-situ leaching, sensitivity analysis of single factor and multiple factors was carried out. Firstly, combined with the slope characteristics of ion-absorbed rare earth ore, seven factors were selected as the research objects, such as specific gravity, cohesion and internal friction angle of topsoil and weathered ore, as well as injection intensity. Secondly, the heterogeneous slope plan models were established to calculate the safety factors of slope. And the sensitivity analysis for the influence factors of slope stability with in-situ leaching was carried out by safety factors. The engineering results showed that the key monitoring position of slope was located in the interface between topsoil and weathered ore, and the key monitoring factor was injection intensity.

关 键 词：离子型稀土矿 边坡稳定 敏感性分析 安全系数 注液强度 

分 类 号：TD854.6[矿业工程—金属矿开采]