基于圆弧型滑动法的某尾矿渣稳定性分析

Stability Analysis of Tailing Slag Based on Circular Arc Sliding Method

以某尾矿渣治理工程为例,基于圆弧型滑动法,对天然状态和暴雨饱和状态下的尾矿渣稳定性进行了定性和定量综合分析及评价。结果表明:水(降雨和河流)以及人为活动是诱发堆渣体发生失稳的主要因素,天然状态下堆渣体处于稳定状态;暴雨饱和状态下堆渣体处于欠稳定状态或不稳定状态。通过野外勘察和室内试验,确定了矿区地质环境治理所需的有关岩土物理力学参数,依此提出了安全经济、合理可行的治理方案。

Taking a tailing slag treatment project as an example,based on the circular arc sliding method,the stability of tailing slag under the natural state and the saturated state of rainstorm was analyzed and evaluated qualitatively and quantitatively.The results show that water(rainfall and river)and human activities are the main factors that induce the instability of the slag body,and the slag body is in stable state under natural conditions.The slag body is in understable state or unstable state under the saturated state of rainstorm.In addition,through field investigation and laboratory test,the relevant geotechnical physical and mechanical parameters needed for mine geological environment treatment are determined,and the safe,economical,reasonable and feasible treatment scheme is put forward.