Based on real conditions of lower slice top caving seam behavior, a conclusion of Strata pressure behavior is drawn, including work resistance and setting load of supports and distance of press.
针对“两硬”条件,下分层放顶煤开采的实际,系统总结了下分层放顶煤开采矿压显现规律,包括支架工作阻力、初撑力、来压步距,为放顶煤开采提供理论依据。
This paper puts forward two supporting schemes for he buttock of the comprehensive mechanized coal mining face on the lower slice, and through the field practice, sums up and compares their respective merits and demerits, and determines a buttock supporting scheme that is suitable to the comprehensive mechanized coal mining face on the lower slice.
对下分层综采工作面端头支护提出两种方案,经过现场实践,总结出了各自的优缺点,并进行了比较,最后确定了适合下分层综采工作面的端头支护方案。
A new type of advancement by full section descending slicing of doorhead is introduced.
在竖井掘进的同时，下行分层全断面掘进马头门，以桐坑三期副井为实例。
Application and practice of downward delamination cemented tailings filling stoping method in Daling mine;
下向分层尾砂胶结充填采矿法在大岭矿的应用与实践
The article analyses specifications of the lower slicing roadways and the supports breakdown causes for the thick coal seams in the Xinzhou Mine of Datong coal mines group Co.
通过对大同煤矿集团公司忻州窑矿厚煤层下分层回采巷道破坏特征、支架损坏原因的分析,提出了下分层巷道安全掘进和回采超前管理的对策。
Static Analysis and Distortional Study on Double Decked & Partially Cable-Stayed Continuous Box-Girder Bridge;
上下行分层矮斜拉连续箱梁桥静力分析及畸变研究
downgoing subsurface intrabed multiple
下行地下层间多次波
Applied anatomy of marginal mandibular branch of the facial nerve:distribution in different strata and positioning section by section
面神经下颌缘支的走行层次及分段定位
Partition principle of the finite element meshes of soil under traveling wave excitations
行波输入下土层有限元网格的划分原则
The Surface Wake Generated by a Submerged Moving Body in a Stratified Viscous Fluid and its Interaction with the Stochastic Ocean Waves;
粘性分层流中水下航行体尾迹在随机海面中的表现特征研究
Study on Finite-Element Analysis and Isolation of Soil Layer Vibration under Excitation of Subway;
地铁运行激励下土层振动的有限元分析与隔振研究
Research on College Student s Health-risk Behaviors Characteristics and Management under the View of Social Stratification;
社会分层视角下大学生健康危险行为特征与管理研究
Analysis of Necessity and Feasibility of University Graduates Going down to Grass-roots Unit;
优秀大学毕业生下基层农村的必要性和可行性分析
Propagation of Surface Crack in Graded Macadam Base Asphalt Pavement under the Traffic Load and the Research of Fatigue Life
行车荷载作用下级配碎石基层沥青路面开裂及疲劳寿命分析
Study on Physical Exercise and Influenced Factors of Urban Residents under Vision of Stratified Social Structure
社会分层视野下城市居民体育锻炼行为及影响因素的研究
The lower stratum divides again into Ds and Es.
下层又分成D级和E级。
hierarchy of covered walkway system
分层有盖行人道系统
Overall area 20,880 m2 including the basement storey 1 and 2 and above ground storey 1 and 2.
总面积为20,880平米，可分布在地下二层、地下一层、一层和二层。
occupying the upper part of the lower class.
占据着下层阶级的上层部分。
According to theoretical analysis, an optimal layering algorithm is obtained with defined energy model.
通过理论分析，获得了给定能量模型下的最优分层算法，并进行了仿真计算。
Pre-salt Sediment Group, Salt Sediment Group and Post-salt Sediment Group.
在剖面上可分为三套地层组合，即盐下层系、含盐层系和盐上层系。
Study on Forecast Model of Lower Layers by the Soil Moisture of Surface Layer;
表层土壤水分预测下层土壤水分的模型研究
The MTP2 layer uses primitives to interact with the network layer above it and the physical layer below it.
MTP2 层使用原语与上面的网络层和下面的物理层进行交互。