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- country rock classification 围岩分类
- BGS Igneous Rock Classification Scheme NADMSC-SLTT Vocanic Materials IUGS Igneous Rock. 中国火成岩岩石分类和命名方案。
- The country rock of the orebody are dolomites of Gaoyuzhuang Formation(Middle Proterozoic era). 矿床围岩以中元古界高于庄组白云岩为主。
- Stone cover: Point the country rock surrounded with the material appearance in HeTian Yushan. 石皮:指和阗玉山料外表包围的围岩。
- Taoyuan molybdenum ore belongs to mesothermal hydrothermal vein deposit.Alteration of country rock has linear feature. 桃园钼矿床属中温热液脉型矿床,围岩蚀变具线型对称特征。
- The zimenqiao Formation silicolites of Lower Carboniferous is the country rock of Changkeng Au-Ag deposit. 下石炭统梓门桥组硅质岩是粤西长坑金银矿床的直接容矿岩石。
- To ferromagnetic ore, if country rock interfuse is 10 % on average, go out with get rid of of magnetism pulley place.. 对强磁性矿石,如围岩混入平均为10%25,用磁滑轮所剔出的...
- I love Jay chou &F.I.R !I also like country Rocks, gospel music! 我喜欢周杰伦,飞儿乐团!他们都很好听!
- The dolomite of Upper Sinian Dengying Formation is favorable ore-source rock and useful ore-preserving country rock. 上震旦统灯影组碎裂状白云岩是有利的矿源层及有利的赋矿围岩。
- This paper puts forward the way of mining knowledge for surrounding rock classification through qualitatively analyzing the relationship between discontinuities and surrounding rock classification. 通过分析结构面与隧道围岩分级之间的关系,提出隧道围岩分级知识挖掘方法。
- The most important country rock alterations are silicification,sericitization and pyritization which are closely associated with gold deposit. 围岩蚀变以硅化、绢英岩化、黄铁矿化最为重要,它们与金矿密切相关。
- Surrounding rocks classification plays a determinative role in the design and construction of tunnels. 摘要围岩分类对于隧道设计和施工起着决定性的作用。
- The alteration of country rock related to gold mineralization includes silicated, carbonation,argillic and hematitization(or limonite)alteration. 矿体受岩筒产状控制。与金矿化有关的围岩蚀变有硅化、碳酸盐化、粘土化和赤(褐)铁矿化。
- Ore-forming materials and REE possess multi-sources,RE partitioningmodel of magmatic rock shows a differant origin compared to that of country rock. 成矿物质及稀土元素具多来源性,岩浆岩及围岩中稀土配分模式显示其具不同成因特征。
- Considering characteristics of Grotto Relics, the influence factors and dynamic finite element analysis methods on deformation stability grotto country rock are discussed. 针对石窟文物的特点,阐述了影响石窟围岩变形稳定性的主要因素和动力有限元分析方法。
- Based on the theory of rock mechanics that applied in country rock kerf, and using bolt support can remove the heave of bottom, which gets good effect in practice. 施工中应用巷道围岩切缝法的岩石力学理论分析,采用锚杆支护法解决底板臌起现象,收到良好效果。
- rock classification for tunnel exploration 坑探岩石分级
- An analysis of the complex of viscoelastic country rock compled with viscoelastic (or elastic)lining in a circular drift under plane strain condition is given by this paper. 本文在平面应变条件下,对粘弹性圆形巷道和衬砌的耦合问题进行分析,衬砌(粘弹或弹性的)是在巷道开挖后,或巷道形成后经过一段时间蠕变才加上的。
- experience of rock classification 经验分类法
- Foreign nationals were asked to leave the country. 外国侨民被要求离开该国。