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- Weak intercalation is the main weak surface which controls the rock stability. 软弱夹层是控制岩体稳定性的主要弱面。
- The large span large section of the roadway surrounding rock stability analysis supporting the proposed overall idea. 通过对大断面大跨度巷道围岩稳定性的分析,提出了支护的总体思路。
- 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。
- Lingzikou Tunnel is located at 30 km north-east of Shaotong city in Yunnan Province, the adjoining rock stability analysis and evaluation. 根据勘察资料对位于云南省昭通市北东约 3 0 km处凌子口隧道围岩的稳定性进行分析评价。
- Bifurcated tunnel is one of the new type tunnels, the excavation way and support style are key factors to the rock stability. 摘要分岔隧道是一种新型的隧道结构形式,其设计方案、开挖支护方法对围岩稳定性至关重要。
- In this paper,FLAC is adopted to simulate the surrounding rock stability of a belt drive conveyor cavern of Yangquan mine district during excavation and support by steps. 运用有限差分数值计算软件(FLAC),模拟分析了阳泉三矿芦南分区胶带驱动机硐室在分步开挖过程中围岩的稳定性。
- The result shows that the gap between stowing and roof and the stowing width are two main effects on the surroundings rock stability in partial backfill style. 研究结果表明,充填空顶间隔大小、充填条带宽度是部分充填开采围岩稳定性的两个主要影响因素。
- Based on a comprehensive review of existing evaluation methods for rock stability, the universal relative inelastic displacement ratio was chosen as rock stability criterion. 摘要在综合评价现有岩体稳定性评判方法的基础上,选用普适性较好的弹塑性位移相对比值判别方法作为岩体稳定性的判据。
- Analyses that system mechanization caving mining roadway is the whole coal and was beared stress complex.Discusses the important meaning for studing its roadway surround rock stability. 分析了综采放顶煤回采巷道为全煤巷道,并且所受应力复杂,阐述了对该巷道围岩稳定性研究的重要意义。
- This paper presents some concrete countermeasures by analyzing ore rock stability for pillar keep, mining series and multistage mining method of large tractmining secondary project. 本文对二期工作大面积开采范围的矿柱留设、开采顺序、多阶段开采等问题,通过矿岩稳定性分析提出了具体的对策。
- The rocks stability is restricted by a lot of factors.Its classification belongs to non-determinacy decision-making problem. 摘要围岩稳定性受众多因素制约,其分类属于非确定性决策问题。
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年,长大后成了地质学家。
- classification of surrounding rock stability 围岩稳定性分类
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭岩石。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- Global strategic balance and stability. 全球战略平衡和稳定。
- The water had worn a channel in the rock. 水把岩石冲出了一条沟。
- He dash the glass bowl to bit on a rock. 他对著石块把玻璃碗砸得粉碎。
- The mountain rise up in a steep wall of rock. 这座山高而陡,形成一道岩石屏障。
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