基于层次分析法-可拓学模型的尾矿坝稳定性评价

摘要

AHP and extenics model were used to determine the greater impact factors of the dam stability, such as bad unfavorable geology, dry beach surface length, daily maximum precipitation, drainage systems and the blasting vibration. The results show that the larger factors affecting the stability of tailings dams are daily maximum precipitation, unfavorable geology and drainage systems, and the comprehensive security level of tailing dam is IV (namely unstable) through the calculation of the model. The research results can be targeted for the monitoring and controlling of the tailing dams, which can not only save the cost but also improve the effectiveness of safety measures.%在对某尾矿坝的实际工况如不良地质体、干滩面长度、日最大降雨量、排洪系统和爆破振动等进行分析的基础上，提出利用层次分析法及可拓学模型，综合全面地判定出对坝体稳定性影响较大的因素，结果表明：日最大降雨量、不良地质体和排洪系统对坝体的稳定性影响较大，经可拓模型综合计算得出，尾矿坝稳定性综合安全评价等级为IV级即（不稳定）。该研究结果可为矿山有针对性的对尾矿坝进行监测与防治提供指导，并可节约成本，提高安全防治的有效性。