露天大水矿床开采渗流场及帷幕防治水模拟研究  

Simulation of Seepage Field and Curtain Water Control in Open-pit Heavy Water Deposit Mining

作　　者：赵雷[1] 侯克鹏[2] 者亚雷 何全松 何平 ZHAO Lei;HOU Kepeng;ZHE Yalei;HE Quansong;HE Ping(Jianshan Phosphate Mine Branch,Yunnan Phosphate Group Co,Ltd.;Faculty of Land Resources En-gineering,Kunming University of Science and Technology)

机构地区：[1]云南磷化集团有限公司尖山磷矿分公司 [2]昆明理工大学国土资源工程学院

出　　处：《现代矿业》2023年第7期63-67,共5页Modern Mining

摘　　要：露天大水矿床地质条件复杂,若水患治理不及时,边坡将长期浸泡在水中,不仅使得矿体无法继续开采,并且对边坡稳定性造成重大安全隐患。采用地下水渗流软件GMS,遵循“区域—矿区”的思路对矿床开采渗流场进行分析,预测了不同开采阶段矿坑涌水量。后期涌水量过大,单一抽排水方式难以满足治水要求,提出了帷幕注浆防治水方案,并进行不同帷幕布置形式堵水效果分析,得出长度为50 m以上的圈闭式帷幕堵水效果最佳,堵水率可达80%以上。The geological conditions of the open-pit heavy water deposit are complex.If the water hazard is not treated in time,the slope will be immersed in water for a long time,which not only makes the ore body unable to continue mining,but also causes major safety hazards to the slope stability.The groundwater seepage software GMS is used to analyze the seepage field of the deposit mining in accordance with the idea of"region-mining area".The water inflow of the pit in different mining stages is predicted.The later water inflow is too large,and a single pumping and drainage method is difficult to meet the water control requirements.A curtain grouting water control scheme is proposed,and the water blocking effect of different curtain layout forms is analyzed.It is concluded that the water blocking effect of the trap curtain with a length of 50m is the best.The water plugging rate can reach more than 80%.

关 键 词：大水矿床 GMS 渗流场 帷幕治水 

分 类 号：TD745[矿业工程—矿井通风与安全]