[1]罗志雄,王迪,夏洪波,等.中线式尾矿库洪水漫顶溃坝演化规律模拟研究[J].中国安全生产科学技术,2022,18(5):157-162.[doi:10.11731/j.issn.1673-193x.2022.05.024]
LUO Zhixiong,WANG Di,XIA Hongbo,et al.Simulation research on evolution law of flood overtopping dam break of mid-line tailings pond[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(5):157-162.[doi:10.11731/j.issn.1673-193x.2022.05.024]
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中线式尾矿库洪水漫顶溃坝演化规律模拟研究
LUO Zhixiong,WANG Di,XIA Hongbo,et al.Simulation research on evolution law of flood overtopping dam break of mid-line tailings pond[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(5):157-162.[doi:10.11731/j.issn.1673-193x.2022.05.024]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 18
- 期数:
- 2022年5期
- 页码:
- 157-162
- 栏目:
- 职业安全卫生管理与技术
- 出版日期:
- 2022-05-31
文章信息/Info
- Title:
- Simulation research on evolution law of flood overtopping dam break of mid-line tailings pond
- 文章编号:
- 1673-193X(2022)-05-0157-06
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 为了解中线式尾矿库洪水漫顶溃坝的过程和机理，并提出可行的工程措施，以某中线式尾矿库及下游周边环境为研究对象，采用物理模型试验和数值模拟法对中线式与上游式尾矿库安全性进行对比研究。研究结果表明：由于中线式尾矿库外坝坡堆积粗尾砂的渗透系数偏大，其较上游式尾矿库溃口发展的速率更快，溃坝过程持续时间约14.5 h，坝顶被泄流冲刷形成的溃口宽约289 m，尾矿库下游沟道研究范围内尾矿淤积约871万m3，大量的尾矿仍滞留在库内；采用数值模拟得出的演化趋势与物理模型试验基本一致，但数值模拟计算的尾砂流动速度较快；在拦砂坝下游修建应急拦砂坝工程，物理模型试验表明拦滞尾矿洪水时间约38 min，数值模拟结果表明拦滞尾矿洪水时间约16 min，因此应急拦砂坝措施可有效延长应急逃生时间，减轻溃坝对下游居民的影响。
- Abstract:
- In order to understand the process and mechanism of flood overtopping dam break of the mid-line tailings pond,and propose the feasible engineering measures,taking a mid-line tailings pond and its downstream surrounding environment as the research object,the comparative research on safety of mid-line and upstream tailings pond was conducted by using the physical model tests and numerical simulation method.The results showed that because the permeability coefficient of the coarse tailings accumulated on the outer dam slope of the mid-line tailings pond was relatively large,its development rate of tailings pond breach was faster than that of the upstream method.The dam break process lasted about 14.5 hours,and the width of breach on dam top being scoured by the discharge was about 289 m,and the tailings siltation in the research area of downstream channel of the tailing pond was about 8.71 million m3,but a large amount of tailings were still trapped in the pond.The evolution trend obtained by numerical simulation was basically the same as the physical model test,but the tailings flow rate calculated by numerical simulation was faster.When an emergency sand-retaining dam project was built at downstream of the sand-retaining dam,the physical model test showed that the blocking time of tailings flood was about 38 minutes,while the numerical simulation results showed that the blocking time of tailings flood was about 16 minutes.Therefore,the measure of emergency sand-retaining dam can effectively extend the emergency escape time and reduce the impact of dam break on the downstream residents.
参考文献/References:
［1］闪淳昌，张振东，钟开斌，等.襄汾“9·8”特别重大尾矿库溃坝事故处置过程回顾与总结［J］.中国应急管理，2011（10）：13-18.
SHAN Chunchang,ZHANG Zhendong,ZHONG Kaibin,et al.Review and summary of the handling process of the dam break accident of Xiangfen “9·8” special major tailings pond［J］.China Emergency Management,2011(10):13-18.
［2］吴大明，刘志文，朱锐，等.巴西尾矿库溃坝事故初步总结与分析［J］.中国安全生产，2019，14(4）：58-59.
WU Daming,LIU Zhiwen,ZHU Rui,et al.Preliminary summary and a nalysis of dam break accident of tailings pond in Brazil［J］.China Occupational Safety and Health,2019,14(4):58-59.
［3］陈生水，邓曌，钟启明.连续降雨下尾矿库失稳溃坝数学模型研究与应用［J］.金属矿山，2016（10）：165-170.
CHEN Shengshui,DENG Zhao,ZHONG Qiming.Research on the mathematical model of tailings pond breaching due to continuous rainfall and its application［J］.Metal Mine,2016(10)：165-170.
［4］王仪心，米占宽.尾矿坝溃坝安全风险分析评价方法［J］.金属矿山，2019(6）：184-188.
WANG Yixin,MI Zhankuan.Safety risk analysis and evaluation method for tailings dam break［J］.Metal Mine,2019(6)：184-188.
［5］HANSON G J,COOK K R,HUNT S L.Physical modeling of overtopping erosion and breach formation of cohesive embankments［J］.Transactions of the ASAE,2005,48(5):1783-1794.
［6］刘磊，张红武，钟德钰，等.尾矿库漫顶溃坝模型研究［J］.水利学报，2014，45（6）:675-681.
LIU Lei,ZHANG Hongwu,ZHONG Deyu,et al.Research on dam break model due to tailings pond overtopping［J］.Journal of Hydraulic Engineering,2014,45(6):675-681.
［7］张力霆，齐清兰，李强，等.尾矿库坝体溃决演进规律的模型试验研究［J］.水利学报，2016，47（2）：229-235.
ZHANG Liting,QI Qinglan,LI Qiang,et al.Experimental model study on dam break and evolution law of tailings pond［J］.Journal of Hydraulic Engineering,2016,47(2):229-235.
［8］李火坤，梁萱，刘翰和，等.基于FLOW-3D的尾矿库逐渐溃坝三维数值模拟［J］.南昌大学学报（工科版），2019，41（2）：120-126.
LI Huokun,LIANG Xuan,LIU Hanhe,et al.Three-dimensional numerical simulation of tailings dam failure based on FLOW-3D［J］.Journal of Nanchang University (Engineering & Technology),2019,41(2):120-126.
［9］王昆.尾矿库溃坝演进SPH模拟与灾害防控研究［D］.北京：北京科技大学，2019.
［10］张红武，江恩惠，赵新建，等.黄河高含沙洪水模型的相似条件［J］.人民黄河，1995（4）：1-3，61.
ZHANG Hongwu,JIANG Enhui,ZHAO Xinjian,et al.Similar conditions of flood model with high sediment concentration in the Yellow River［J］.Yellow River,1995(4):1-3,61.
［11］张红武，刘磊，卜海磊，等.尾矿库溃坝模型设计及试验方法［J］.人民黄河，2011，33（12）：1-5.
ZHANG Hongwu,LIU Lei,BU Hailei,et al.Test and design of tailings pond model［J］.Yellow River,2011,33(12):1-5.
［12］中华人民共和国水利部.溃坝洪水模拟技术规程：SL/T 146—2019［S］.北京：人中国水利水电出版社，2019.
［13］中华人民共和国水利部.河工模型试验规程：SL 99—2012［S］.北京：中国水利水电出版社，2012.
［14］张罗号，张红武，张锦方，等.泥石流流速计算与模型设计方法［J］.人民黄河，2015，37（4）：18-24.
ZHANG Luohao,ZHANG Hongwu,ZHANG Jinfang,et al.Calculation method of debris flow velocity and debris flow model design［J］.Yellow River,2015,37(4):18-24.
［15］SOULSBY R L.Dynamics of marine sand ［M］.London:Thomas Telford,1997.
［16］刘洋，齐清兰，张力霆.尾矿库溃坝泥石流的演进过程及防护措施研究［J］.金属矿山，2015（12）：139-143.
LIU Yang,QI Qinglan,ZHANG Liting.Study on evolution of debris flow from dam break and protection measures of tailings pond［J］.Metal Mine,2015(12):139-143.
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备注/Memo
- 备注/Memo:
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收稿日期： 2021-07-26
作者简介： 罗志雄，硕士，高级工程师，主要研究方向为尾矿库安全技术。
