This paper analyses the stability of the design and construction of Kota Bunyih (KB) tailings dam of Rahman Hydraulic Tin Mine which is located at Kelian Intan, Pengkalan Hulu Perak. The stability assessment of KB tailings dam was conducted using 2D Limit Equilibrium Methods analysis software, Slide 6.0 from Rocscience Inc. using two different approaches - the deterministic and probability approaches. In the analyses, it was found that the upstream and downstream factors of safety (FOS) obtained through deterministic analysis are satisfactory as compared to the recommended minimum FOS for both normal operating freeboard and flood freeboard conditions. In addition, both of the normal and lognormal reliability index values obtained from overall slope surface analysis are twofold the minimum recommended value, which indicate the satisfactory level of safety of KB tailings dam slope.
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机译：本文分析了位于Kelian Intan，Pengkalan Hulu Perak的Rahman液压锡矿设计和施工的稳定性。 KB尾矿大坝的稳定性评估使用2D极限均衡方法分析软件进行，从Rocscience Inc.使用两种不同的方法滑动6.0 - 确定性和概率方法。在分析中，发现通过确定性分析获得的安全性（FOS）的上游和下游因素令人满意，与正常运行的干舷和洪水冲击板条条件的推荐最低FOS相比是令人满意的。此外，从整体坡度分析获得的正常和伐诺型可靠性指数值都是双重的最小推荐值，这表明KB尾矿坝斜率的令人满意的安全水平。
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