摘要
针对具有涌水风险的地下矿山,开展开采扰动影响下井下渗流稳定性和潜在的涌水风险分析对矿山井下涌水风险防治及安全开采具有重要意义。本研究以吉林省辉南县小湾沟铁矿为工程背景,通过FLAC3D渗流计算分析渗流稳定性,对井下矿体开采过程中预留保安矿柱的防水安全性、采场涌水风险进行了模拟,结果显示各中段采场开采后孔隙水压力均为0,表明小湾沟铁矿地下开采过程采场受河流水位渗流的影响较小,无潜在涌水风险。
For underground mines with water inrush risk,it is of great significance to carry out the analysis of underground seepage stability and potential water inrush risk under the influence of mining disturbance to prevent the underground water inrush risk and ensure the safe mining of underground mines.In this study,Xiaowangou Iron Mine in Huinan County,Jilin Province was selected as the engineering background.Then,the seepage stability was analyzed by FLAC^(3D) seepage calculation,and the waterproof safety of reserved safety pillars and the risk of water gushing in the stope during the underground mining were simulated.The results showed that:the pore water pressure of each middle stope is 0 after mining,indicating that the stope of Xiaowangou Iron Mine is less affected by the seepage of river water level and has no potential water gushing risk.
作者
朱生青
Zhu Shengqing(Dalizi Mining Industry Co.,Ltd.,Tonghua Steel Group,Jilin,134600)
出处
《当代化工研究》
CAS
2023年第22期47-49,共3页
Modern Chemical Research
关键词
涌水风险
开采扰动
渗流稳定性
地下矿山
孔隙水压力
water inrush risk
mining disturbance
seepage stability
underground mine
pore water pressure
