论文部分内容阅读
五林露天矿场处于高寒冻融环境,地质条件复杂。文章通过冻融机理及边坡稳定性理论研究,利用直剪试验获得力学参数,结合数值模拟,从冻结厚度、融化厚度、含水率、冻融循环次数四个方面对目标矿区边坡稳定性进行分析。分析发现该矿区边坡稳定性较好,坡体滑塌风险较小,实验发现含水量和循环次数对边坡稳定性影响较大,三次冻融循环以后,含水量为主要影响因素。在此基础上提出铺设排水管道,使用土工格栅防护,雷达监测等相关防护措施。
Wulin opencast mine is in an alpine freezing and thawing environment with complex geological conditions. Through the research of freezing and thawing mechanism and the theory of slope stability, the mechanical parameters are obtained by the direct shear test, and the stability of the slope in the target mining area is studied from four aspects of the freezing thickness, the melting thickness, the moisture content and the number of freeze-thaw cycles Analyze. It is found that the stability of the slope is good and the risk of slope collapse is small. It is found that the water content and the number of cycles have a great influence on the slope stability. The water content is the main factor after the three freeze-thaw cycles. On this basis, put forward the laying of drainage pipes, the use of geogrid protection, radar monitoring and other related protective measures.