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Quality Classification and Mechanical Parameters Confirmation of Slope Engineering Rock Mass based on RMR and BQ Methods YUAN Shi-Lin-1, YANG Jiu-Lin-1, KANG Zhi-Qiang-2, 3 Modern Mining    2010, 26 (11): 38-40.   Abstract （4053）      PDF（pc） （4066KB）（4342）       Knowledge map    Save Based on field exploration data and laboratory test data, comprehensively considered construction property and other factors of slope engineering, quality classification and evaluation were done on engineering rock mass of mine slope by adopted RMR and BQ methods, strength range of each rock mass of mining area were confirmed comprehensively. The example analysis indicates comprehensive forecasting method could predict hierarchical problem of rock slope quality more scientific, and it also can provide more reliable basis for adopt economical and reasonable support treatments. Related Articles | Metrics

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HU Fu-Xiang Modern Mining    2010, 26 (11): 64-66.   Abstract （3748）      PDF（pc） （3265KB）（3736）       Knowledge map    Save Related Articles | Metrics

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Fluid Mechanics Analysis and Velocity Calculation of Filling Slurry Pipeline Transportation LIU Xing-De, CHEN Xiao-Yang Modern Mining    2010, 26 (11): 28-31.   Abstract （4055）      PDF（pc） （4399KB）（3079）       Knowledge map    Save With the development of society and the progress of science and technology, filling mining method has gradually become the main mining method on metal deposits in underground mining. There are several kinds of filling methods such as hydraulic filling, high density filling, paste filling and so on. Motion state and rheological characteristics of filling slurry in filling pipeline transportation are analyzed, and several calculation formulas of critical velocity about slurry pipeline transport are introduced. Related Articles | Metrics

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Experimental Study of Ion Exchange and Neutralization on Acid in Situ Leach Uranium Mining Wastewater Cai-Ping-Li-1, TAN Kai-Xuan-2, SHI Wen-Ge-2, HU E-Ming-2, HUANG Ai-Wu-2 Modern Mining    2010, 26 (11): 21-22.   Abstract （3818）      PDF（pc） （3276KB）（3030）       Knowledge map    Save Experimental study of strong basic anion exchange resin adsorption removing uranium and limestone eliminate removing uranium tail liquid acid were done on groundwater which polluted by acid in situ leach uranium mining mine radioactivity, the result indicated, indexes of ph value、V and TFe came up to or almost to the permissible criteria of Ⅳ class groundwater of groundwater through two-stage treatment, indexes of Eh、U、Al came up to range of background value. Related Articles | Metrics

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LI Hui Modern Mining    2010, 26 (11): 110-111.   Abstract （3740）      PDF（pc） （2239KB）（3006）       Knowledge map    Save Related Articles | Metrics

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MAO Yi-Lin, CHEN Xiao-Qing, YANG Jin-Zhong, LIU Hou-Ming, WANG Xiu-Fen Modern Mining    2010, 26 (11): 91-92.   Abstract （3865）      PDF（pc） （2406KB）（2984）       Knowledge map    Save Related Articles | Metrics

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XU Fa-Xin-1, QIN Shun-Ping-1, FAN Yuan-Jian-2 Modern Mining    2010, 26 (11): 41-43.   Abstract （3899）      PDF（pc） （3388KB）（2945）       Knowledge map    Save Related Articles | Metrics

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WANG Xiao-Gang, CHEN Gen, YAN Yun-Feng Modern Mining    2010, 26 (11): 44-48.   Abstract （3975）      PDF（pc） （5578KB）（2943）       Knowledge map    Save Related Articles | Metrics

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Study on Mineral Processing Technology of a Lowgrade Iron Ore Liu-Gui-Qing-1, ZHAO Yun-Huan-1, QIU Jun-2, 吕Xian-Jun-2 Modern Mining    2010, 26 (11): 14-16.   Abstract （4305）      PDF（pc） （3305KB）（2918）       Knowledge map    Save Washability experimental research was done on a lowgrade magnetic iron ore, research result indicates, this ore belongs to coarse grain disseminated lowgrade magnetic iron ore, staged grinding technology could realize energysaving and emissionreduction, cost decreasing and effect increasing effectively. Suitable grinding fineness is -200 mesh content of the first and secondary stage ore grinding product take 60% and 85% separately; magnetic density of rough concentration and ore concentrate both are 120 kA/m。Finally iron grade of ore concentrate reached to 66.58%，recovery rate reached to 81.34%，a good beneficiation technical indicators were obtained. Related Articles | Metrics

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WEN Xing-12, LI Hong-Jian-3 Modern Mining    2010, 26 (11): 107-109.   Abstract （4156）      PDF（pc） （3387KB）（2893）       Knowledge map    Save Related Articles | Metrics

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YANG Zai-Hua, WANG Jie, DAI Bi-Bo, HE Wei Modern Mining    2010, 26 (11): 71-72.   Abstract （4024）      PDF（pc） （4021KB）（2872）       Knowledge map    Save Related Articles | Metrics

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Application Study on Mine Tunnel Modeling Algorithm  based on OpenGL HAO Chang-Sheng, SUN Bao-Lei, WANG Rui-Zhi, ZHOU Lian-Chun, FANG Zhong-Chun Modern Mining    2010, 26 (11): 8-10.   Abstract （4023）      PDF（pc） （3432KB）（2862）       Knowledge map    Save  Problems occurred when using OpenGL to make threedimensional modeling of mine turning tunnel and spatial distribution law of points on surface of turning tunnel are analyzed. A simple algorithm could realize turning tunnel threedimensional simulation is put forward, so the threedimensional model of mine tunnel could set up conveniently and rapidly. Related Articles | Metrics

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Research on Reserves Estimation of Jiajiabao Iron Ore based on 3DMine Liu-Bo, CHEN Guang-Ping Modern Mining    2010, 26 (11): 1-4.   Abstract （4053）      PDF（pc） （4945KB）（2853）       Knowledge map    Save Based on the geologic database of Jiajiabao, 3DMine software was used to combine samples and analyzed them by geological statistics. According to analyzed ore grade spatial variation, inverse distance squares method and ordinary Kriging method were used to make grade estimation for block model, then orebody resources reports were formed respectively. Two results of reserves calculation were compared, and application in resources management and mining design were discussed. Related Articles | Metrics

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LIU Jun-Xing Modern Mining    2010, 26 (11): 102-103.   Abstract （3955）      PDF（pc） （4986KB）（2820）       Knowledge map    Save Related Articles | Metrics

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LI Ming-Jun-1, YU Cheng-Tao-2, HUO Gui-Zhi-1, ZHONG Qi-Hong-2 Modern Mining    2010, 26 (11): 49-52.   Abstract （4136）      PDF（pc） （5077KB）（2713）       Knowledge map    Save Related Articles | Metrics

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Experimental Study on Mineral Processing of a Cyanide Tailings in Xinjiang GOU Yan-Wei, WANG Feng-Shui, ZHU Guo-Qing, LIN Jun-Ling, CHANG Mu-Yuan Modern Mining    2010, 26 (11): 17-20.   Abstract （4092）      PDF（pc） （4708KB）（2676）       Knowledge map    Save Based on the mineral properties of a cyanide tailings in Xinjiang, test on choice and dosage of agent like inhibitor, activating agent, collector, etc in prior separation flotation of copper and zinc, opencircuit whole process and closedcircuit test were done. The result indicated: one roughing, one scavenging, three reconcentrate, priority in turn flotation technology of copper and zinc of middling sequence recurrence, could better recovered copper, zinc and quantities of gold and silver. Copper concentrate with copper grade 16.88% and recovery rate 79.70%,gold recovery rate 34.97%,silver recovery rate 33.07% and zinc concentrate with zinc grade 52.07% and recovery rate 63.77% were obtained, twice recovery of mineral resources were realized. Related Articles | Metrics

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Finite Element Displacement Back Analysis on Deformation and Viscoelasticity of Surrounding Rock Mass of Jinshandian's Iron Ore and Powder Ore CHEN Jin-Ping, SHENG Jian-Long Modern Mining    2010, 26 (11): 11-14.   Abstract （3748）      PDF（pc） （4553KB）（2633）       Knowledge map    Save According to the characteristics of elastic deformation during instantaneous loading and creep deformation tends to convergence changing with time which surrounding rock mass of Jinshandian's iron ore and powder ore have, reference to displacementtime curve obtained by field monitoring, chose PoytingThomson constitutive model, using finite element displacement analysis, integrated elasticmodulus   which include viscoelastic parameters was obtained, consider affect of excavation steps to surrounding rock mass deformation. Elastic modulus E1, E2, viscosity coefficient η had separated after made regression of integrated elasticmodulus, using these parameters into similar deformation prediction of powder ore tunnel, it could predict deformation amount and deformation stability time at different time of this surrounding rock mass. Related Articles | Metrics

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LEI Da-Jing, JIAN Qing-Wei, TANG Xiang-Wei Modern Mining    2010, 26 (11): 59-63.   Abstract （3949）      PDF（pc） （4274KB）（2615）       Knowledge map    Save Related Articles | Metrics

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WANG Jun Modern Mining    2010, 26 (11): 112-114.   Abstract （3937）      PDF（pc） （3109KB）（2570）       Knowledge map    Save Related Articles | Metrics

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MA Wei-Wei, 吕Guang-Zhong Modern Mining    2010, 26 (11): 73-75.   Abstract （3966）      PDF（pc） （4018KB）（2560）       Knowledge map    Save Related Articles | Metrics