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- According to the field investigation at Dayang coal mine, the paper describes behavior of ground pressure of longwall top coal caving face with soft surrounding rock and movement of overlying strata. 本文通过大雁二矿28%23层采面矿山压力的实测分析,论述了软岩矿井大采放比综放开采矿压显现特征和围岩活动规律。
- fully mechanized longwall top coal caving mining 综放开采
- Longwall Top Coal Caving Method and Its Future in China 我国综采放顶煤开采技术及其展望
- Study on longwall top coal caving method in big obliquity seam 大倾角综放采煤方法的实践研究
- fully mechanized longwall top coal caving mining face 综放面
- Analysis of longwall top coal caving in thick seams with parting band 含夹矸厚煤层综放开采技术分析
- Stability analysis of sliding canopy supports in longwall top coal caving face 悬移支架放顶煤工作面支架稳定性分析
- Keywords longwall top coal caving;basic study;strata control;safety technology; 长壁放顶煤;基础理论研究;岩层控制;安全技术;
- Keywords longwall top coal caving;working resistance;numerical simulation; 综放开采;支架工作阻力;数值模拟;
- Design and exploration of forced roof falling for fully mechanized longwall top coal caving mining face 综放工作面强制放顶的设计与探索
- Keywords longwall top coal caving;balance structure;ground pressure;finite deformation beam;coal damage; 综放开采;平衡结构;采场矿压;大变形梁;损伤;
- Research on surrounding rock deformation factors in gob-side entry driving of fully mechanized longwall top coal caving mining face in island seam 孤岛综放工作面沿空掘巷围岩变形因素研究
- Seam gateway support technology for fully mechanized longwall top coal caving mining in horizontal slicing of deep inclined thick seam 急倾斜特厚煤层水平分层综放开采煤巷支护技术
- Selection and Application of Equipment for Comprehensively Mining Working Face in Longwall Top Coal Caving Face Under Wire Mesh Roof 网下低位放顶煤综采工作面设备选型及应用
- Analysis on site measurement of support pressure distribution law for seam of fully mechanized longwall top coal caving mining 综放开采煤层支承压力分布规律现场实测分析
- Technology for fully mechanized longwall top coal caving mining face crossing over folded structure in Yangquan Mining Area 阳泉矿区综放工作面过褶曲构造技术
- Rational coal caving step distance setting for fully mechanized longwall top coal caving face under soft fine sandstone roof 松散细砂岩顶板下综采合理放煤步距的确定
- longwall top coal caving 放顶煤开采
- longwall top - coal caving mining 综放开采
- The law of top coal movement on a fully mechanized longwall face with top coal caving wasanalysed thoroughly on the basis of field observation andfinite element calculation. 本文根据现场观测、数值计算以及理论分析,详细阐述了放顶煤采场的顶煤变形运动规律,指出了顶煤变形运动可划分成四个区:顶煤变形区,压裂区,松动区和放落区。
