摘要
以云南某尾矿坝为工程背景,利用数值模拟软件Fluent建立三维尾矿坝模型,分别选取500、800m处的10、30、60、90、120、140s六个时间段来分析冲击压力、掩埋深度及尾砂运移速度,得到冲击压力、掩埋深度、尾砂运移速度规律,模拟结果显示溃坝尾砂的运移会对下游铁路高架和村落造成巨大的冲击,研究结果可为尾矿坝稳定性分析提供理论依据。
Taking a tailings dam in Yunnan as the engineering background,a three-dimensional tailings dam model was established by using a numerical simulation software Fluent.Six time periods of 10 s,30 s,60 s,90 s,120 sand 140 sat 500 mand 800 mwere selected to analyze the impact pressure,burial depth,and migration velocity of tailings,and the laws of impact pressure,burial depth,and migration velocity of tailings were obtained.The simulation results show that the movement of dam break tailings will have a great impact on the downstream railway viaducts and villages.The results can provide a theoretical basis for stability analysis of tailings dam.
引文
[1]陈小玉.尾矿库溃坝下泄尾砂演进数值模拟研究[D].广州:华南理工大学,2016.
[2]敬小非.尾矿坝溃决泥沙流动特性及灾害防护研究[D].重庆:重庆大学,2011.
[3]王瑞金,张凯,王刚.FLUENT技术基础与应用实例[M].北京:清华大学出版社,2007.
[4]吴永卿.尾矿库溃坝泥石流演进规律模型试验研究[D].石家庄:石家庄铁道大学,2015.
[5]徐克,赵云胜,张强.尾矿库溃坝后果数值分析[J].工业安全与环保,2012,38(10):28-30.
[6]廖威林.尾矿库溃坝尾砂下泄数值模拟研究[D].广州:华南理工大学,2015.
[7]楼建东,李庆耀,陈宝.某尾矿坝数值模拟与稳定性分析[J].湖南科技大学学报(自然科学版),2005(2):58-61.
[8]李书娜.尾矿坝溃坝模型及数值模拟研究[D].长沙:中南大学,2011.
[9]朱宁.金河矿业公司勐桥铁矿李子菁尾矿库溃坝状态数值模拟研究[D].昆明:昆明理工大学,2014.
[10]袁利伟,李素敏.尾矿库溃坝灾害风险分析理论与实践[M].北京:电子工业出版社,2017.