| 1. | Numerical simulation analysis and support choice of roadway in steep seam 急斜薄煤层巷道数值模拟分析及支护选型 |
| 2. | Study on failure laws of surrounding rock in the steep dip and extra - thick coal seam mining 急斜特厚煤层开采围岩破坏规律研究 |
| 3. | Function of destruction and instability of basic roof in top coal caving of steep seams 基本顶破断失稳在急斜煤层放顶煤开采中的作用 |
| 4. | Dynamical destabilization analysis of steep and heavy thick coal seam in a deep - mine under the complex - variable environment based on ae 的深部复变环境下急斜特厚煤层开采动力失稳分析 |
| 5. | Engineering application of united caving method of caving top coal with light hydraulic support for sublevel caving between steeply inclined near coal seams 急斜近距煤层水平分段轻型液压支架放顶煤联合开采的实践 |
| 6. | In order to study basic roof ' s destruction movement that affects working face in horizontal section top coal caving in mining steep seams , this paper analyses tension of roof using elastic and thin board theory and concludes criterion of roof destruction based on long and narrow thin board 摘要为研究急斜煤层水平分段放顶煤开采过程中基本顶破坏活动对工作面的影响,根据急斜煤层基本顶具有倾斜狭长板的特点,运用弹性薄板理论对基本顶岩层进行了拉应力分析,得出了顶板破断的判别准则,建立了基本顶初次破断后形成的“铰接结构”的力学模型。 |
| 7. | In order to study the basic roof ' s destruction movement that affects working face in horizontal section top coal caving in mining steep seams , this paper analyses tension of roof using elastic and thin board theory and obtains criterion of roof destruction based on long and narrow thin board 摘要为研究急斜煤层水平分段放顶煤开采过程中基本顶破坏活动对工作面的影响,根据急斜煤层基本顶具有倾斜狭长板的特点,运用弹性薄板理论对基本顶岩层进行了拉应力分析,得出了顶板破断的判别准则,建立了基本顶初次破断后形成的“铰接结构”的力学模型。 |