您要查找的是不是：
- surrounding rock failure of engineering 工程围岩破坏
- It is possible to use Gurit without damaging the surrounding rock. 使用古力特炸药将完全可能不造成对围岩的破坏。
- Based on the measured results and field survey, the cause of the failure and deformation of the surrounding rock around soft rock laneway in MaLuPing mine are discussed. 根据现场调查和实测结果,分析了马路坪矿软岩巷道围岩变形和破坏的主要原因。
- Therefore, the influence of shear dilation on the failure face should be considered for determining relaxed pressure of surrounding rock for the shallow bias tunnel. 因此，在确定浅埋偏压隧道围岩松动压力时应该考虑剪胀对破坏面形状的影响。
- The results show that: the dilatancy angle has great influence on the surrounding rock displacement and the shape of failure face for shallow bias tunnel. 结果表明：剪胀角对浅埋偏压隧道围岩位移和破坏面形状有较大影响。
- The drilling fluid may interact with the surrounding rock in other ways. 钻井液可能会以其它方式与周围的岩石相互作用。
- If the volcano becomes inactive and cools, surrounding rock may be worn away. 如果火山变得不活动并冷却下来，围岩就可能被剥蚀掉。
- Their use made the design of roadway surrounding rock supporting safer. 这些结果的应用使巷道岩石支护的设计更趋于安全。
- A change within an intrusive igneous rock caused by the assimilation of portions of the surrounding rock. 内变质作用由于周围岩石同化作用而在侵入火成岩内部产生的变化
- Rock failure mode during drilling using ballas bit is similar ro shearing with high RPM andlow WOB. 由于巴拉斯钻头是剪切破岩，并且有高转速、低钻压的工作特性，笔者用它进行纠斜和防斜。
- The research results, taken as criterion of prediction of rock failure, is of important instru... 结论作为预警岩体破坏的准则有重要参考价值。
- 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。
- It gives clear definition and classification of soft rock, and a comprehensive study has been made on the mechanism of soft rock failure. 首先明确了软岩的定义及分类，对影响软岩隧道稳定因素，软岩隧道失稳的力学机理和变形力学机制作了较为全面的研究。
- If the surrounding rock is soft and is later worn away, the walls remain and form ridges called dikes. 如果围岩柔软,日后又被剥蚀掉,这种岩壁就下来形成山脊,称为岩墙。
- Under the different loading considerations and constraint conditions, rock failure happens with one type (tension or shear) or two types concurrence. 由于具体的承载条件和约束条件不同,岩体破坏时,可能是以某一种(拉或剪)形式破坏,也可能以两种破坏形式并存发生。
- On the Relation between Alteration of Surrounding Rock and Gold Mineralization in the Xinchen Gold Ore Deposit. 浅谈新城金矿床围岩蚀变与金矿化的关系
- Rock Failure Process Analysis (RFPA) code is used to study the failure process of rock disks with pre-existing cracks under dynamic loading. 摘要本文利用岩石破裂过程分析系统(RFPA)研究了含有不同角度预制裂纹的岩石试样在动态载荷作用下的破坏过程。
- The present method could make the supporting of roadway surrounding rock safe and economic. 按最优恒阻支护计算方法设计巷道支护，可以达到经济且安全的最佳支护效果。
- A small rounded lump of a mineral or mixture of minerals, usually harder than the surrounding rock or sediment. 矿的结核一种矿物或矿物混合物的小圆块，通常比表层岩石或矿渣坚硬
- The deep roadway surrounding rock of Jinchuan No.2 mine area was crumbly and had obvious creep. 金川二矿区深部巷道围岩岩石破碎,蠕变特性明显,地应力大,巷道变形严重,巷道返修量大,严重制约了矿山的发展。
