磷石膏高堆积场三维渗流模拟及渗流稳定性分析  

Three-dimensional Seepage Simulation and Seepage Stability Analysis of Phosphogypsum High Packing Field

作　　者：曹纪刚[1,2,3] 毛权生[1,2,3] 吴鹏程[1,2,3] 

机构地区：[1]中钢集团马鞍山矿山研究院有限公司 [2]金属矿山安全与健康国家重点实验室 [3]华唯金属矿产资源高效循环利用国家工程研究中心有限公司

出　　处：《现代矿业》2015年第9期129-131,181,共4页Modern Mining

摘　　要：磷石膏的沉积规律与一般尾矿差别较大,其堆场的渗流特性也区别于一般尾矿库。针对国内某一大型磷石膏堆场的实际情况,运用三维渗流有限元方法,分析了磷石膏堆积坝现状及最终工况下的渗流场及渗流稳定性。结果表明,最终堆积标高时浸润线从坡面溢出,且下游部分坡面水力坡降大于允许渗透坡降或者余量较小,后期运行过程中应采取措施进行治理。The difference of sedimentary rules of phosphogypsum and general tailings is big,the seepage characteristics of the yard of phosphorous gypsum is different from general tailings. According to the actual field situations of a phosphogypsum yard in our country,three-dimensional seepage finite element method is adopted to analyze the present situation,seepage filed and seepage stability under the final condition of the phosphogypsum stacking dam. The results show that the saturation line is overflowed from the slope with final accumulation level,the downstream part of the slope seepage slope hydraulic gradient is greater than the allowed seepage slope,besides that,measures should be taken to deal with the phosphogypsum stacking dam in the late process of running.

关 键 词：磷石膏高堆积场 三维渗流 渗流稳定性 

分 类 号：TV223.4[水利工程—水工结构工程]