裸脚式稀土矿山原地浸矿的浸润线计算方法
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摘要
以裸脚式稀土矿山为研究对象,用平均含水层厚度代替含水层厚度,通过Boussinesq方程建立了渗流稳定后,隔水底板为二次抛物线形式的浸润线的计算方法,分析了隔水底板表面形状参数和注液强度对浸润线的影响。结果显示,隔水底板表面形状参数和注液强度均对浸润线的影响非常明显。采用建立的浸润线的计算方法分析了注液强度在水平方向的分布情况,结果表明,底板越平缓,注液强度分布越不均匀,收液区域越大;注液强度随矿层厚度增加而增加。
Taking barefoot type rare earth mine as research object.Replacing aquifer thickness with average aquifer thickness,and after seepage stability,the calculation method of saturation line with two parabola forms of impermeable floor is established using Boussinesq equation.The influence of surface shape parameters of impermeable floor and liquid injection intensity on the saturation line is analyzed.It is found that surface shape parameters of impermeable floor and liquid injection intensity have obvious effects on the saturation line.The distribution of liquid injection intensity in horizontal direction is analyzed by using the calculation method of established saturation line.It is shown that the more flat the impermeable floor is,the more uneven the distribution of liquid injection intensity is,and the larger the liquid collection area is.The liquid injection intensity increases with the increase of the thickness of the ore layer.
Taking barefoot type rare earth mine as research object.Replacing aquifer thickness with average aquifer thickness,and after seepage stability,the calculation method of saturation line with two parabola forms of impermeable floor is established using Boussinesq equation.The influence of surface shape parameters of impermeable floor and liquid injection intensity on the saturation line is analyzed.It is found that surface shape parameters of impermeable floor and liquid injection intensity have obvious effects on the saturation line.The distribution of liquid injection intensity in horizontal direction is analyzed by using the calculation method of established saturation line.It is shown that the more flat the impermeable floor is,the more uneven the distribution of liquid injection intensity is,and the larger the liquid collection area is.The liquid injection intensity increases with the increase of the thickness of the ore layer.
引文
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[2]黄琳,孙艳,郭唯明,等.当前新材料及所需战略性矿产概述[J].中国矿业,2018,27(8):1-8.HUANG Lin,SUN Yan,GUO Weiming,et al.Summary of current new materials and necessary strategic mineral resources[J].China Mining Magazine,2018,27(8):1-8.
[3]张臻悦,何正艳,徐志高,等.中国稀土矿稀土配分特征[J].稀土,2016,37(1):121-127.ZHANG Zhenyue,HE Zhengyan,XU Zhigao,et al.Rare earth partitioning characteristics of China rare earth ore[J].Chinese Rare Earths,2016,37(1):121-127.
[4]池汝安,田君.风化壳淋积型稀土矿化工冶金[M].北京:科学出版社,2006:75-86.
[5]池汝安,田君.风化壳淋积型稀土矿评述[J].中国稀土学报,2007,25(6):641-650.CHI Ru'an,TIAN Jun.Review of weathered crust rare earth ore[J].Journal of the Chinese Society of Rare Earth,2007,25(6):641-650.
[6]罗仙平,翁存建,徐晶,等.离子型稀土矿开发技术研究进展及发展方向[J].金属矿山,2014(6):83-90.LUO Xianping,WENG Cunjian,XU Jing,et al.Research progress on and development trend of exploitation technique of ion-absorbed type rare earth ore[J].Metal Mine,2014(6):83-90.
[7]池汝安,田君,罗仙平,等.风化壳淋积型稀土矿的基础研究[J].有色金属科学与工程,2012,3(4):1-13.CHI Ru'an,TIAN Jun,LUO Xianping,et al.The basic research on the weathered crust elution-deposited rare earth ores[J].Nonferrous Metals Science and Engineering,2012,3(4):1-13.
[8]饶运章,张永胜,饶睿,等.离子型稀土原地浸矿边坡稳定影响因素敏感性分析[J].矿业研究与开发,2015,35(9):60-63.RAO Yunzhang,ZHANG Yongsheng,RAO Rui,et al.Sensitivity analysis on the influence factors of slope stability for ion-absorbed rare earth ore by in-situ leaching[J].Mining Research and Development,2015,35(9):60-63.
[9]王洪丁,邱高磊,罗涛.饱和度对离子型稀土矿抗剪强度的影响[J].中国矿业,2016,25(S1):460-464.WANG Hongding,QIU Gaolei,LUO Tao.Effect of saturation degree on shear strength of ion-adsorption rare-earth ore[J].China Mining Magazine,2016,25(S1):460-464.
[10]王洪丁,王观石,邱高磊,等.离子型稀土矿体强度特性试验研究[J].中国矿业,2016,25(9):136-140,147.WANG Hongding,WANG Guanshi,QIU Gaolei,et al.Research into strength characteristics for ion-adsorption rareearth ore[J].China Mining Magazine,2016,25(9):136-140,147.
[11]王观石,罗嗣海,胡世丽,等.裸脚式稀土矿山原地浸矿渗流过程及边坡变形[J].稀土,2017,38(3):35-46.WANG Guanshi,LUO Sihai,HU Shili,et al.Seepage process and slope deformation of barefoot type rare earth mine in-situ leaching[J].Chinese Rare Earths,2017,38(3):35-46.
[12]饶睿,李明才,张树标,等.离子型稀土原地浸矿采场滑坡特征及防控试验研究[J].稀土,2016,37(6):26-31.RAO Rui,LI Mingcai,ZHANG Shubiao,et al.Experimental study on landslide features and countermeasures of in-situ leaching stope of ion-type rare earth mines[J].Chinese Rare Earths,2016,37(6):26-31.
[13]张树标,李明才,饶运章,等.离子型稀土原地浸矿采场山体滑坡防控试验研究[J].有色金属科学与工程,2015,6(4):116-120.ZHANG Shubiao,LI Mingcai,RAO Yunzhang,et al.On landslide prevention and control of in-situ leaching slope of ion-adsorbed rare earth[J].Nonferrous Metals Science and Engineering,2015,6(4):116-120.
[14]吴吉春,薛禹群.地下水动力学[M].北京:中国水利水电出版社,2009.
[15]胡世丽,洪本根,罗嗣海,等.裸脚式稀土矿山原地浸矿的边坡稳定性分析[J].工程地质学报,2017,25(1):110-116.HU Shili,HONG Bengen,LUO Sihai,et al.Effect of in-situ leaching for rare earth mining to slope stability[J].Journal of Engineering Geology,2017,25(1):110-116.
[16]何书,陈飞,刘强,等.稀土矿层厚度对浸矿边坡渗流及稳定性的影响[J].防灾减灾工程学报,2018,38(3):528-534.HE Shu,CHEN Fei,LIU Qiang,et al.Effect of thickness of rare earth ore bed on seepage characteristics and stability of leaching slope[J].Journal of Disaster Prevention and Mitigation Engineering,2018,38(3):528-534.