Quantitative Assessment Method Study Based on Weakness Theory of Dam Failure Risks in Tailings Dam
Considering the current status of no quantitative assessment of dam failure risks in security assessment of tailings dam and that the fact of dam body being heterogeneous body isnt taken into account in stability calculation of the dam body, the article, based on assessment theory of weakness risks, puts forward the idea of viewing volume weight, internal friction angle and cohesion as random variables and adopting Monte-Carlo model to calculate effectiveness-losing probability of dam failure in tailings dam as well as establishing tailings flow model of tailings dam after dam failure based on hydrology, hydrodynamics and movement theory of non-Newtonian fluid to compute submergence range due to the failure; Loss ratio of dam failure in tailings dam is calculated through computation of loss of life, financial and environmental loss after dam failure. Finally, weakness level of dam failure in tailings dam is determined with the above data for improvement in security assessment technology of tailings dam and guarantee of safe and sound operation of tailings dam.
Tailings dam dam failure probability submergence range loss rate quantitative assessment
MEI Guodong
China Academy of Safety Science & Technology, Beijing 100012, China University of Science and Technology Beijing, Beijing 100083, China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
403-410
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）