某金矿尾矿库排水隧洞竖井段的优化设计  

An Optimized Design for the Shaft Section in the Drainage Tunnel of Tailings Pond in a Gold Mine

作　　者：刘明生[1] 王睿齐 Liu Mingsheng;Wang Ruiqi(Kunming Engineering&Research Institute of Nonferrous Metallurgy Co.,Kunming 650051,China;Faculty of Electric Power Engineering,Kunming University of Science and Technology,Kunming 650504,China)

机构地区：[1]昆明有色冶金设计研究院股份公司,云南昆明650051 [2]昆明理工大学电力工程学院,云南昆明650504

出　　处：《金属矿山》2020年第8期195-198,共4页Metal Mine

摘　　要：按环保要求,金矿尾矿库需实施清污分流的措施。某金矿尾矿库上游汇水面积大,雨季洪水量集中,洪水导排设施结构复杂。通过对拟建库外排洪系统开展水工模型试验,复核及验证了设计的合理性。以大量实测数据为基础,优化了设计方案。采取在竖井进口设置分流墩的措施,改变水流入井条件,减少水流直接冲击井壁的范围,降低水流冲击竖井井壁造成的水浪高度,从而改善水流对竖井的脉冲,提高竖井消能,降低下接隧洞洞身出现脉冲水浪的高度,确保排洪系统安全平稳地运行。对类似设施提供了值得借鉴的工程经验。As required by environmental protection,effluent separation measures should be taken for tailing pond of gold mines.The tailing pond has a large catchment area upstream for a large amount of flood during rainy season,with a complicated structure for the flood discharge facilities.Through a hydraulic model test on the proposed flood drainage system,the reasonability of the design was checked and verified.Based on massive data of actual measurement,the design scheme was optimized.Diversion piers are set at the entrance section of the shaft,to change conditions for water flows into the shaft,reduce the area where water flows directly impact the shaft wall,and lower the height of water waves caused by water flows impacting the shaft wall,so as to ameliorate water pulses on the shaft,improve the energy dissipation of the shaft,lower the height of pulsing water waves in the tunnel connected below,and guarantee the safe and steady operation of the flood drainage system.The design provides an engineering experience reference for similar facilities.

关 键 词：尾矿库 排水隧洞 竖井 分流墩 水流流态 

分 类 号：TV32[水利工程—水工结构工程]