干堆尾矿子坝结构参数的稳定性响应规律研究  

Research on response of stability by structure parameters of sub-dams in dry tailings dams

作　　者：谢羽佳[1] 谭钦文[1] 李春林[1] 贾梁[1] 徐午言 

机构地区：[1]西南科技大学环境与资源学院,四川绵阳621010

出　　处：《中国安全生产科学技术》2014年第1期33-38,共6页Journal of Safety Science and Technology

基　　金：西南科技大学研究生创新基金(13ycjj28)

摘　　要：针对干堆尾矿库设计时缺乏子坝结构参数取值依据的实际困难,采用数值试验和工程实证相结合的方法,系统研究了干堆尾矿库坝体结构参数对稳定性的响应规律,提出干堆尾矿库子坝结构参数选取方法。结果表明:堆坝安全系数Fs随子坝高h降低整体呈先增后减的变化规律,峰值为最佳子坝高,其值与堆积坝总高呈正相关,通常取值为堆积坝总高的1/5-1/7;安全系数Fs与马道宽d呈正相关,推荐在3-6m范围取值。It is a practical difficulty that there is not a standard for selecting the structure parameters of sub-dams when designing a dry tailing dam. In view of this issue,the response laws of stability by the structure parameters of dry tailings dams were studied by numerical experiment and example verification. The results showed that the safety factors（ F S） of the dry tailing dam will increase firstly then decrease as the height of sub-dams decrease by degrees. The peak point is the best value point. What’s more,the optimum height of sub-dam has a positive correlation with the total height of dry tailing dam,of which the best value is usually designed at 1 /5 to 1 /7. Furthermore,there is a positive correlation between FS and the width of sub-dams. The recommended value of sub-dam width ranges 3 metres to 6 metres.

关 键 词：干堆 尾矿坝 子坝结构 稳定性 响应规律 

分 类 号：X936[环境科学与工程—安全科学]