筋带对尾矿坝漫坝破坏过程阻滞作用试验研究  

Experimental study on blocking action of bar strip on tailings dam overtopping

作　　者：赵一姝[1] 敬小非[1] 周筱[1] 蔡治勇[1,2] 刘克辉[1] 

机构地区：[1]重庆科技学院安全工程学院 [2]重庆市安全生产科学研究院,重庆401331

出　　处：《中国安全科学学报》2016年第1期94-99,共6页China Safety Science Journal

基　　金：国家自然科学基金资助(51404049);重庆市教委科学技术研究项目(KJ1501328);重庆科技学院重点项目培育基金资助(CK2014Z12);重庆科技学院安全风险与控制团队基金资助;重庆市地质矿产勘查开发局科技项目

摘　　要：为分析筋带在尾矿坝漫坝破坏过程中的阻滞性,基于相似理论和溃决侵蚀原理,进行加筋尾矿坝漫顶破坏模型试验。深入剖析加筋尾矿堆积坝漫顶演化规律和破坏模式,揭示筋带在尾矿坝漫顶破坏过程中的阻滞效应。结果表明:加筋尾矿坝的浸润线上升滞后于未加筋情况;加筋尾矿坝漫坝破坏呈台阶破坏模式;筋带对尾矿坝漫坝破坏发展速度和侵蚀沟深宽有明显的阻滞作用。采取尾矿坝加筋措施能有效防御洪水漫顶溃坝灾害。For the sake of studying the blocking effect of bar strip on tailings dam overtopping,the similarity theory and principle of burst erosion model were used to establish an evolution model of reinforced tailings dam under the flood condition,and the floating evolution of reinforced tailings dam was analyzed.the evolution law and failure mode of tailings stacking dam were analyzed,and the blocking effect of reinforced belts on overtopping destruction was revealed. The results indicate that rise in the saturation line of tailings dam is delayed by bar strips,that overtopping process of reinforced tailings dam has a steps failure mode,that bar strips have a significant blocking effect on the process of tailings dam destruction and the width of erosion gully,and that the reinforcement measure can be used to prevent effectively dam overtopping disasters.

关 键 词：尾矿坝 漫顶溃坝 加筋 阻滞特性 模型试验 

分 类 号：X913.4[环境科学与工程—安全科学] TD853.34[矿业工程—金属矿开采]