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- The surrounding rock of the entry in strongly weathered zone has more fissures which lower the rock strength,and the maximum roadway dimension will be limited consequently. 强风化带中的回采巷道,围岩裂隙增多、强度降低,巷道的最大尺寸将受到限制。
- By appling surround rock strength theory,stiffener theory,and observating weighe of 2 # seam bolt support in Ximing Coal mine,determines the rational position of roadway and bolt paramters. 通过运用围岩强度强化理论和“刚性梁”理论,对2%23煤层的锚杆支护进行矿压观测,合理确定出巷道位置和锚杆参数
- In-situ Test of Surrounding Rock Strength with Bore Penetration Method 钻孔触探法围岩强度原位测试
- surrounding rock strength 围岩强度
- 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。
- It is found that the main problems are the uncoupled strength and the uncoupled regidity between the support and the surrounding rock in the soft rock. 文中认为目前煤矿软岩巷道支护存在的主要问题是支护体与围岩之间的强度或刚度的不耦合问题。
- The initial supporting stiffness and strength of bolting system should be increased largely to maintain the integrity and redue the strength decrease of surrounding rock. 开发出高预应力、强力支护系统，包括强力锚杆、强力钢带及强力锚索系列材料，力学性能得到显著提高；
- From the point of whole creep process, long-term strength and energy dissipation, this paper analyzes the creep damage characteristics of wreak surrounding rock. 摘要从岩体的蠕变全过程、长期强度和能量耗散的角度，分析软弱围岩的蠕变损伤特性。
- The research results thow that the strength of the surrounding rock is the most important factor which affects the deformation of the in-floor-rock roadways. 研究表明,增加巷道与煤层的法线距离对减小巷道的变形量虽有一定的作用,但这种影响并不明显。
- 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。
- Confining pressure increase rock strength, decrease damages rate of rock creep. 在热力学框架内推导了岩石材料的蠕变损伤本构关系。
- 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
- The length effect of rock strength results in the friction effect of end faces,not the heterogeneity of rock material. 结果表明,岩石强度的长度效应是由于岩样端面摩擦效应所致,而并非根源于材料本身的非均质性。
- Basing on this, the paper researches the mechanism of floor heave, and analyzes the effects of gravity stress, tectonic stress, the strength of surrounding rock, terrestrial heat and imbibition water on floor heave. 在此基础上，研究深部开采条件下巷道底鼓发生的机理，并对自重应力、构造应力、围岩强度、地温、水对底鼓的影响进行了分析。
- The thesis analyzes the effect of the increase of mining depth on the floor heave, discusses the laws that gravity stress, tectonic stress, the strength of surrounding rock, terrestrial heat and imbibition water change with the increase of mining depth. 分析了采深对巷道底鼓的影响，以及自重应力、构造应力、围岩强度、地温、水随开采深度变化的规律。
- The most important factors of rock joint include its direction, shape, size, space, width, roughness and rock strength of joints. 岩石的节理裂隙特征，包括其方位、形态、规模、间距、裂隙宽度、粗糙度、壁面强度等。
- 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。
- Using the triaxial rock mechanics testing unit manufactured by American MTS Co, rock strength and deformation behavior are studied. 采用美国MTS公司生产的三轴岩石力学试验机进行岩石强度特性和变形特性试验。
