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Construction and application of formal ontology for mineCHENG Gang 1, 2, ZHANG Yin-ling1, 2, WANG Fei 1 ,2, ZHANG Zhen-hui 3, GUO Yu-xiang1, 2(1. Key Laboratory of Mine Spatial Information..., China; 3. Qingdao Branch of Naval Aeronautical Engineering Institute, Qingdao 266041, China)Abstract:Digital mine is the only way for the development of mining industry in China. Due to lack......
polymeric substances (EPS) produced by acidophilic bioleaching microorganisms play an important role in the production of acid mine drainage and metal sulfide bioleaching. EPS mediate the contact... by Leptospirillum ferriphilum CBCBSUCSU208015 when cultivated with pyrite. Key words: acid mine drainage; carbohydrates; extracellular polymeric substances; galacturonic acid; metal sulfide; bioleaching 1......
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J. Cent. South Univ. (2017) 24: 1881-1888 DOI: https://doi.org/10.1007/s11771-017-3595-5 Measurement and numerical analysis of influence of key stratum breakage on mine pressure in top-coal caving... working faces with large mining heights on mine pressure manifestation, the key stratum at a working face was categorised using the 1313 top-coal caving face with super great mining height under cover......
100083,China摘 要:Previous mining excavation in upper sublevels left several mined-out areas in Haigou gold mine. To ensure safety of the main and auxiliary shafts and mining production in deeper sublevels, systematical studies on regularity, prediction, and control of ground pressure in the mine were carried out. Through 3D-numerical modeling and in-situ......
Engineering, Kunming University of Science and Technology, Kunming 650093, China)Abstract:Digital mine is the inevitable outcome of the information processing, and is also a complicated system engineering. Firstly, for the 3D visualization application of the digital mine, the ground and underground integrative visualization framework model was proposed based on the mine entity database. So......
, Central South University, Changsha 410083, China)Abstract:In order to ensure overall optimization of the underground metal mine production scale, multidisciplinary design optimization model of production scale which covers the subsystem objective function of income of production, safety and environmental impact in the underground metal mine was established by using multidisciplinary design......
of an underground granite mine located in Canal San Bovo (Trento district, North-eastern Italy) was described. The exploitation of the granite, which is used in the ceramic industry, was carried out... the stability condition of an underground mine, it is necessary to carry out the calcula-tions that are able to check both the local and global stability of the rock mass. In the studied example, this approach......
AMD蚀化砂岩的性征及其机理研究 姜立春1,陈嘉生2 (1.华南理工大学,安全工程所,广东,广州,510640;2.中南大学,资源与安全工程学院,湖南,长沙,410083) 摘要:为研究矿山酸性水(Acid Mine Drainage,AMD)对矿山边坡的破坏作用,在不同时间步长条件下,用pH＝1.07,3.26的两种H2SO4溶液蚀化砂岩,然后对蚀化的砂岩试样进行抗压试验和细观结构观察.试验结果表明,在AMD作用后,砂岩的单轴抗压强度降低幅值达30%~50%,弹性模量降低25%~45%,粘聚力和内摩擦角降低,泊松比在0.20~0.29范围内波动.节理越发育,试件过峰后的残余应力值越大,破坏时间越长.细观研究表明,AMD作用后,砂岩中的Fe,Al等金属元素被稀释,溶解,质量百分比大幅下降.机理分析表明,AMD作用过程中,砂岩内节理和裂隙间的充填物频繁发生分解和聚合反应,改变岩体内部......
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