您要查找的是不是：
- 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。
- 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
- overburden strata movement 覆岩运动
- 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。
- 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 overlying strata movement is a complicated dynamic process. 摘要矿山开采引起上覆岩层的移动是一个复杂的动态过程。
- 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。
- Regularity of rock strata movement will be changed by effect of geodynamic underground mining. 在地质动力的作用下,矿山地下开采正常的岩层与地表移动规律将发生变化,甚至会发生突变灾害。
- 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。
- The results really reflected the law of overlaying strata movement and fracture development. 真实地反映了在开采保护层过程中覆岩移动及裂隙发育规律。
- The strata movement and the ground surface subsidence caused by underground mining are serious underground engineering problems. 地下开采引起的岩层移动和地表沉陷是一个非常严重的地下工程问题。
- It is also shown that digital speckle correlation method has higher accuracy, and richens the research method of overlying strata movement. 数据分析还表明，数字散斑相关方法具有较高的精度，这一新的研究方法引入，丰富了上覆岩层活动规律的研究手段。
- Studied the shock bump caused by the key stratum movement in Huafeng Colliery using the microseism locating and monitoring technology. 摘要采用微地震定位监测技术对华丰煤矿关键层运动诱发矿震进行了研究。
- overburden strata bottom ore-drawing 覆岩下底部放矿
- Then the predicting the oretic of strata movement and development at home and abroad are introduced.Thirdly brings forward main contents and key technologies of this research. 然后,论述了国内外岩移规律研究的现状及发展趋势,提出了该课题研究的主要研究内容以及关键技术;
- Mining strata movement and deformation law; rock movement control theory and methods; Rock movement monitoring technology; rock movement and deformation computer simulation. 矿山开采岩层移动与变形规律；岩层移动控制理论与方法；岩层移动监测技术；岩层移动与变形的计算机仿真等。
- According to the underground pressure theory, which takes stratum movement as key matter, the nonelastic area occurs in coal body under the action of underground pressure. 根据“以岩层运动为中心”的矿山压力理论,煤体在矿山压力作用下将出现非弹性区。
- According to the complex condition of deep excavation in Xinji Mine, FLAC program was carried out for strata movement and surface displacement due to coal extraction by different mining layouts. 摘要针对新集三矿急倾斜煤层开采复杂的采矿地质条件，运用求解非线性大变形问题有限差分法(FLAC)，对不同开采方案所引起的岩体移动和地表沉陷进行了研究；
- Keywords caving method;overburden strata bottom ore-drawing;law of caved ore movement;loss and dilution; 崩落采矿法;覆岩下底部放矿;崩落矿岩移动规律;损失贫化;
