导流孔周水平方向孔隙水压力分布规律
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摘要
掌握导流孔周孔隙水压力分布规律对计算原地浸矿母液回收率具有重要意义。假设水沿水平方向流入导流孔的通道为普遍存在的2分叉分形树状网络结构,基于Hagen-Poiseuille方程,提出导流孔周水平方向孔隙水压力分布计算公式。室内模型试验结果表明,采用2分叉分形树状网络结构描述水流入导流孔的渗流通道是有效的;随初始水头增加,描述树状分叉网络的各级圆管长度比逐渐增加,且增加幅度越来越小,但是各级圆管的直径比和初级母管长度逐渐减小,并渐趋稳定,各级圆管的直径比稳定值为0.84。
It is of great significance for calculating the recovery rate of the rare earth resources in-situ leaching to master the distribution law of pore water pressure around the diversion conduit.Assuming that the channel of water flowing into the diversion conduit horizontally is the ubiquitous 2-branched fractal treelike network structure,based on Hagen-Poiseuille equation,the horizontal pore water pressure distribution expression of the diversion conduit was put forward.The indoor model test results showed that they were effective to describe the seepage channel of the water flowing into the diversion conduit by using the 2-branched fractal tree-like network structure;with increasing of the initial water head,the length ratio of the pipe at each level of the tree-like branched network gradually increased and the increasing range was smaller and smaller,but the diameter ratio and the length of the primary pipe gradually decreased,then became stable,diameter ratio of the pipe at all levels was stable at 0.84.
It is of great significance for calculating the recovery rate of the rare earth resources in-situ leaching to master the distribution law of pore water pressure around the diversion conduit.Assuming that the channel of water flowing into the diversion conduit horizontally is the ubiquitous 2-branched fractal treelike network structure,based on Hagen-Poiseuille equation,the horizontal pore water pressure distribution expression of the diversion conduit was put forward.The indoor model test results showed that they were effective to describe the seepage channel of the water flowing into the diversion conduit by using the 2-branched fractal tree-like network structure;with increasing of the initial water head,the length ratio of the pipe at each level of the tree-like branched network gradually increased and the increasing range was smaller and smaller,but the diameter ratio and the length of the primary pipe gradually decreased,then became stable,diameter ratio of the pipe at all levels was stable at 0.84.
引文
[1]邹国良.离子型稀土矿不同采选工艺比较:基于成本的视角[J].有色金属科学与工程,2012,3(4):53-56.
[2]黄小卫,张永奇,李红卫.我国稀土资源的开发利用现状与发展趋势[J].中国科学基金,2011(3):134-137.
[3]袁长林.中国南岭淋积型稀土溶浸采矿正压系统的地质分类与开采技术[J].稀土,2010,31(2):75-79.
[4]赵中波.离子型稀土矿原地浸析采矿及其推广应用中值得重视的问题[J].南方冶金学院学报,2000,21(3):179-183.
[5]SELLEY R C.Elements of petroleum geology[M].2nd ed.San Diego:Academic Press,1998.
[6]李瑞川,陈君若,刘显茜,等.分形多孔介质渗流特性的研究[J].陕西科技大学学报,2011,29(6):47-50.
[7]王世芳,吴涛,邓永菊.随机分布树状分叉网络渗流特性的分形研究[J].华中师范大学学报:自然科学版,2012,46(4):406-409.
[8]Mandelbrot B B.The Fractal Geometry of Nature[M].New York:Freeman,1982.
[9]徐鹏,郁伯铭,邱淑霞.裂缝型多孔介质的平面径向渗流特性研究[J].华中科技大学学报:自然科学版,2012,40(1):100-103.
[10]Yu B M.Analysis of flow in fractal porous media[J].Applied Mechanics Reviews,2008,61(5).
[11]邱淑霞,徐鹏,郁伯铭.各向异性多孔介质中径向渗流的分形分析[C].第十一届全国渗流力学学术大会,2011:472-477.
[12]Yu B M,CHENG P.A.fractal permeability model for bidispersed porous media[J].International Journal of Heat and Mass Transfer,2002,45(14):2983-2993.
[13]王洪丁,王观石,胡世丽,等.离子型稀土矿体孔径分布及其渗透性变化[J].科学技术与工程,2016,16(25):51-56.
[14]张克松,刘松玉.土力学[M].第三版.北京:中国建筑工业出版社,2010:34-35.
[15]薛禹群.地下水动力学[M].北京:中国水利水电出版社,2009:64-65.
[16]詹红兵,万军伟.水资源和环境工程中水平井研究简介[J].地球科学,2003,28(5):511-516.
[2]黄小卫,张永奇,李红卫.我国稀土资源的开发利用现状与发展趋势[J].中国科学基金,2011(3):134-137.
[3]袁长林.中国南岭淋积型稀土溶浸采矿正压系统的地质分类与开采技术[J].稀土,2010,31(2):75-79.
[4]赵中波.离子型稀土矿原地浸析采矿及其推广应用中值得重视的问题[J].南方冶金学院学报,2000,21(3):179-183.
[5]SELLEY R C.Elements of petroleum geology[M].2nd ed.San Diego:Academic Press,1998.
[6]李瑞川,陈君若,刘显茜,等.分形多孔介质渗流特性的研究[J].陕西科技大学学报,2011,29(6):47-50.
[7]王世芳,吴涛,邓永菊.随机分布树状分叉网络渗流特性的分形研究[J].华中师范大学学报:自然科学版,2012,46(4):406-409.
[8]Mandelbrot B B.The Fractal Geometry of Nature[M].New York:Freeman,1982.
[9]徐鹏,郁伯铭,邱淑霞.裂缝型多孔介质的平面径向渗流特性研究[J].华中科技大学学报:自然科学版,2012,40(1):100-103.
[10]Yu B M.Analysis of flow in fractal porous media[J].Applied Mechanics Reviews,2008,61(5).
[11]邱淑霞,徐鹏,郁伯铭.各向异性多孔介质中径向渗流的分形分析[C].第十一届全国渗流力学学术大会,2011:472-477.
[12]Yu B M,CHENG P.A.fractal permeability model for bidispersed porous media[J].International Journal of Heat and Mass Transfer,2002,45(14):2983-2993.
[13]王洪丁,王观石,胡世丽,等.离子型稀土矿体孔径分布及其渗透性变化[J].科学技术与工程,2016,16(25):51-56.
[14]张克松,刘松玉.土力学[M].第三版.北京:中国建筑工业出版社,2010:34-35.
[15]薛禹群.地下水动力学[M].北京:中国水利水电出版社,2009:64-65.
[16]詹红兵,万军伟.水资源和环境工程中水平井研究简介[J].地球科学,2003,28(5):511-516.