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- To Research Distortion of Surrounding Rock of Two- roadway and Coal Pillar Size in Grubbing of Two - roadway 双巷掘进两巷围岩变形及煤柱留设尺寸研究
- distortion of surrounding rock 围岩变形
- Aiming at the characteristic of the distortion of the extremely hard maintained roadway, the numerical analysises were made on surrounding rock stress and displacement in roadway with FLAC program. 针对极难维护放顶煤回采巷道的变形特点,依据FLAC程序对不同支架形式的巷道围岩应力场和位移场进行了数值模拟。
- Notice the swelling of infarcted tissue and the distortion of surrounding tissue. 注意梗塞组织的肿胀和周围组织的变形。
- 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 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。
- 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。
- 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 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；
- A distortion of the surface of a document. 文卷表面的一种变形。
- 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。
- 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。
- She has distortion of the right ankle. 她的右踝部有点变形。
- She has some distortion of the skull. 她的颅骨有点变形。
- By arranging the calculating outcome, it is studied that the influence of state of stable gob on the stress and displacement of surrounding rock of gob entry driving. 通过对计算结果整理,分析了采空区压实状况对沿空掘巷围岩稳定性的影响。
