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- Study of Relation between Country Rock Stress and Crackle Spread in Tunnel 隧道围岩应力与裂纹扩展关系研究
- Keywords country rock stress;adopt and move pressure;intensity ofcountry rock;coal rammer stock only protect; 关键词围岩应力;采动压力;围岩强度;煤巷锚杆支护;
- country rock stress 围岩应力
- 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。
- The Relations Between Rockburst and Surrounding Rock Stress in Underground Chambers. 地下洞室中岩爆与围岩应力的关系。
- 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。
- Using the elastic theory,the au-thor attempts to calculate approximately the relative change of rock stress after coalextraction. 本文试图利用弹性理论近似地计算采动后的应力相对变化。
- 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!
- BQ method is suggested as one of favourable ways for evaluation and classification of rockmass quality in the low rock stress region. 采用岩体力学介质属性分级方法(即BQ法)对研究区引水洞、溢洪洞以及泄洪洞进口段围岩进行了岩体质量分级与评价。
- 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。
- In this paper,by the monitoring of rock stress behavior around mine opening and the monitory of anchoring force,the monitoring of the bolt is realized. 本文通过对巷道围岩的变形监测、锚杆锚固力监测达到对锚杆支护质量的监测。
- 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...
- Abstract: Rock stress state in situ is determined by the hydrofracturing method for rock stress measurement in a railway tunnel in northwestern Yunnan. 摘 要: 通过地应力测量,确定出工程区隧道围岩现今地壳应力状态,即原地应力的大小和方向。
- 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。
- Some distribution rules of surrounding rock stress of the tunnel are summarized to provide the reasonable references to design and construction of this tunnel. 总结了该断层地段隧道围岩应力的一些分布规律,为该工程的设计和施工提供了合理的参考依据。
- 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。
- The in situ rock stress prevents the rise of confined water and water inrush for thick floor aquifuge,but for thin floor aquifuge the in situ rock stress wo... 指出对于厚底板隔水层,原岩应力起着阻止底板承压水上升和突出的作用,对于薄底板隔水层,原岩应力起着破坏底板、导致承压水突出的作用。
- 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。
- The in situ rock stress prevents the rise of confined water and water inrush for thick floor aquifuge,but for thin floor aquifuge the in situ rock stress wo. 介绍了水力压裂应力测量的原理和现场测量结果,论述了煤层底板隔水层带的阻水机理和承压水沿煤层上升的机理,以及原岩应力、水压与裂隙扩展的关系。