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- 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；
- 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。
- strength of surrounding rock mass 围岩强度
- Keywords strength of surrounding rock;in-situ test;mensuration instrument;basic parameter; 围岩强度;原位测量;测定装置;基础参数;
- strength of surrounding rock 围岩强度
- 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。
- 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
- Direct to the shortage existing in the classification of surrounding rock stability,provide a new method. 针对目前围岩稳定性分类方法存在的不足,给出一新的分类法。
- Based on the idea,a new extensible bolt is designed for large deformation support of surrounding rock. 室内与现场试验证实了新型可伸长锚杆协调围岩大变形的优良性能,可在围岩大变形支护中推广应用。
- The grouting and bolting technique is designed based on analysis of surrounding rock in roadway and actual conditions in spot. 在分析巷道围岩特性的基础上,依据现场实际情况,提出锚注加固技术治理方案。
- In the river valley region,discal phenomena of drilling cores and laminated exfoliation of surrounding rock in the exploration tunnels are obvious. 河谷下切引起的应力集中是显著的 ,河谷地区许多构造形迹及地下工程中出现的若干围岩稳定问题都与此有关。
- The long war of attrition exhausted the strength of both countries. 这场长期的消耗战耗尽了两国的力量。
- The results show that the rare earth elem met s characteristic of ore is highly similar to that of surrounding rock in gold ore of Yunnang Mengman. 结果表明,矿石与围岩的稀士元素总体特征非常相似,说明两者稀士来源基本一致。
- The results show that the differences of stability of surrounding rock mass are markable for dlfferent excavating sequences. 结果表明，不同的开挖顺序，对围岩的稳定性具有显著的影响。
- I also learned the strength of the collective. 我还认识到了集体的力量。
- 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。
- I did it on the strength of his promise. 我是因为有了他的承诺才做这件事的。
- Through numerical analysis, the stability of surrounding rock in two sides of deep roadway under the conditions of supporting and grouting in the floor was studied. 摘要通过数值计算，研究了底板支护和注浆加固底板后深部软岩巷道两帮围岩的稳定性。
- The finite difference software FLAC3D for Fast Lagrangian Analysis of Continua was applied to study and analyze the deformation and damage process of surrounding rock. 通过有限差分方法(FLAC(上标3D))对围岩变形、破坏过程进行分析研究。
