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《Journal of University of Science and Technology Beijing》 2009-04
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Characters of anisotropy seepage in homogenous ore material

WANG Hong-jiang1),WU Ai-xiang1),ZHANG Jie2),LIU Ming-de3)1) School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China 2) Yunnan Chihong Zn&Ge Co.Ltd.,Qujing 654211,China 3) Xixia Jintai Mining Co.Ltd.,China Gold Group,Nanyang 474593,China  
Horizontal and vertical seepage experiments with granular material from Dexing Copper Mine were completed on a multifunctional experimental shelf.The experiment projects were homogenous designed and the data were analyzed in SPSS software.It is shown that the maximum seepage coefficient appears in down-going flow,the smaller in horizontal flow and the minimum in up-going flow.All the anisotropy coefficients vary from 1.38 to 6.73 and their average value is 4.While the content of coarse grains is in the range of 35% to 60% and the content of mud is 1% to 5%,the seepage coefficient is initially uprising but latter down-going.The seepage coefficient is correlated with porosity in a power function and uprises with enlarging porosity.The porosity declines with increasing content of grains in the range of 0.1 to 0.2 mm and heightens with increasing content of grains in the ranges of 10 to 8 mm and 8 to 4 mm.The relation of seepage coefficient and Reynolds number could be expressed as a power equation and they are identical to determine seepage state.The horizontal and vertical seepage coefficients of Xiyuan dump are 3.68×10-2 m·s-1 and 1.51×10-2 m·s-1,respectively.
【Fund】: 国家自然科学基金资助项目(No.50774011);; 国家新世纪人才计划资助项目(No.NCET-07-0070);; 国家重点基础研究发展计划资助项目(No.2004CB619206)
【CateGory Index】: TE312
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