基于SPH模型的尾矿库溃坝风险模拟研究  

Simulation Study on Dam Failure Risk of Tailings Ponds Based on SPH Model

作　　者：周玉希 张欣欣 樊萌 ZHOU Yuxi;ZHANG Xinxin;FAN Meng(College of Environment and Civil Engineering,Chengdu University of Technology,Chengdu 610059,China;Changshou District Emergency Management Bureau of Chongqing City,Chongqing 401121,China)

机构地区：[1]成都理工大学环境与土木工程学院,成都610059 [2]重庆市长寿区应急管理局,重庆401121

出　　处：《中国资源综合利用》2024年第7期99-101,共3页China Resources Comprehensive Utilization

摘　　要：作为一种具有高势能的危险源,尾矿库可能发生溃坝事故,进而产生泥石流,造成严重的人员伤亡和经济损失。传统的深度积分方法在模拟泥石流演进过程时存在局限性,而光滑粒子流体动力学(Smoothed Particle Hydrodynamics,SPH)是一种新型的数值模拟方法,可以弥补传统方法的缺陷。以攀枝花市某尾矿库为例,构建溃坝泥石流的SPH模型,模拟不同工况下泥石流的演进过程,获得泥石流的流量数据,研究溃口宽度与深度对泥石流演进特征的影响。模拟结果与实际情况较为吻合,因此SPH模型可以有效模拟尾矿库溃坝风险。研究结果为尾矿库安全管理和风险防控提供新方法,有利于保障人民群众的生命财产安全,促进矿业可持续发展。As a hazardous source with high potential energy,tailings ponds may experience dam collapse accidents,leading to mudslides and causing serious casualties and economic losses.The traditional depth integration method has limitations in simulating the evolution process of debris flows,while Smoothed Particle Hydrodynamics(SPH)is a new numerical simulation method that can compensate for the shortcomings of traditional methods.Taking a tailings pond in Panzhihua City as an example,a SPH model for dam failure debris flow is constructed to simulate the evolution process of debris flow under different working conditions,obtain flow data of debris flow,and study the influence of breach width and depth on the evolution characteristics of debris flow.The simulation results are in good agreement with the actual situation,so the SPH model can effectively simulate the dam failure risk of tailings ponds.The research results provide new methods for the safety management and risk prevention of tailings ponds,thereby ensuring the safety of people’s lives and property and promoting sustainable development of the mining industry.

关 键 词：尾矿库 溃坝风险 光滑粒子流体动力学(SPH) 数值模拟 

分 类 号：TD926.4[矿业工程—选矿]