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- overburden strata failure 覆岩破坏
- The overburden strata movement is a complicated time and space process. 上覆岩层的运动是一个复杂的时空过程。
- A great deal of analysis and research indicates that the crack damage is controlled by the key stratum in the overburden strata. 大量研究表明,这种裂缝损害受覆岩中关键层的控制。
- The dynamic development of overburden strata is a complicated space-time process due to the influence of conditions of mining and geology. 摘要采动覆岩动态发展过程受地质、采矿条件诸多因素的影响,是一个十分复杂的时空过程。
- A number of in situ Observation and modelling test show that main way of koof breaking movement is intact shear fall of all overburden stratum. 大量观测和模拟实验表明,薄基岩在厚沙覆盖层作用下的整体切落是顶板破断运动的主要方式。
- Dynamic progressive process of failure of overlying rock stratacaused by mining excavation is simulated by Strata Failure Process Analysis (SFPA2D) system. 应用岩层破断过程分析SFPA2D系统,分析了采动影响下覆岩破坏的动态发展过程。
- Based on the strata displacement theory, the deformation and movement of overburden strata caused by mining activity and the impact of collapse on the environment have been studied. 文章基于岩层移动理论,阐述了地下采矿引起的覆岩移动、变形和破坏规律,及地表塌陷对环境的影响特征。
- The coal mine underground micro seismic monitoring system which is made by Shandong University of Science and Technology is used to monitor the behavior of overburden strata of mining face. 通过对监测到的微地震事件定位计算,证实微地震发展演化与采场覆岩破坏密切相关。
- overburden strata bottom ore-drawing 覆岩下底部放矿
- Actual Measuring Method of Failure Height of Overburden Stratum in a Fully Mechanized Caving Stope and Its Application 综放采场覆岩破坏高度的实测方法及应用
- He tried to put a bold face on his failure. 他对自己的失败装出一副满不在乎的样子。
- The cake we made was somewhat of a failure. 我们做的蛋糕不大成功。
- Characters of overburden strata movement of mines and safe mining depth 矿山覆岩移动特征与安全开采深度
- Formation and Distinction of Gas Enrichment Zone in Gob Overburden Stratum 采空区上覆岩层瓦斯富集区域的形成与识别
- He was bewailing his failure in the examination. 他为考试不及格而悲伤。
- She was constantly spurred on by a fear of failure. 对失败的恐惧不断地激励着她。
- He was stripped down for his failure in the exam. 他考试不及格受到严厉责骂。
- The failure of the plan was laid at his door. 这个计划失败被归罪于他。
- His plan was foredoomed to failure. 他的计画注定要失败。
- He ascribed his failure to bad luck. 他把失败归于运气不佳。