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- soft and broken surrounding rocks 松软破碎围岩
- broken surrounding rock 破碎围岩
- It was shown that there was alternation of strong and weak strength-softening region in the surrounding rock of deep roadways. 研究结果表明：深部巷道围岩中存在围岩强度强、弱软化区域交替出现的现象；
- Research and practice on support methods for mine roadway with broken surrounding rocks 围岩破碎巷道支护方式的研究与实践
- 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。
- broken surrounding rocks 破碎围岩
- 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
- weak structures of surrounding rock 围岩弱结构
- tunnel with weak surrounding rock 软弱围岩隧道
- 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。
- 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。
- 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
- 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。
- This paper introduces the construction process of the overlapped shallow single tunnels embedded in soft and weak surrounding rocks on the north Guo-Lao section of Shenzhen metro by using mining methods, and also the new techniques and crafts adopted. 文章介绍了深圳地铁国老区间北段处于软弱围岩中的浅埋暗挖单洞重叠隧道的施工过程,及其在施工中采用的新技术、工艺。
- 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。
- The four common surrounding rock mass classification methods,Q-system,RMR method,HC method,and BQ m. 采用Q系统、RMR分类、水电规范HC分类、国标BQ分类等4种常用围岩分类方法对该隧洞进行了围岩分类。
