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- Practices have proved that quick advancing techniqe is applicable in isolated unmined area Comprehensive top coal caving face. 实践证明,孤岛综放工作面快速推进技术是可行的。
- In early application of fully mechanized top coal mining,Spontaneous fire took place when the backout of fully mechanized top coal caving face was stopped mining. 在应用综放开采的初期,每当综放工作面停采回撤时,就会发生自燃发火。
- 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 top - coal caving face 综采放顶煤
- This technique has been used successfully in the air-return gate oJ" 1310 fully mechanized roof coal caving face in Zhangcun Coal Mine. 该项研究在漳村1310综放面回风巷的工程实践中得到了成功应用和检验。
- Fully mechanized top coal caving face 综放工作面
- fully-mechanized top coal caving face 综放工作面
- Support technology in top coal caving face with soft bottom 软底煤层综采工作面支护技术
- Blasting test of top coal precracking in blasting coal Caving face 炮采放顶煤工作面顶煤预裂爆破试验
- overlength isolated fully-mechanized top coal caving face 超长孤岛综放工作面
- superwide isolated fully mechanized top coal caving face 超长孤岛综放工作面
- Research and Application of Comprehensive Top Coal Caving Faces Connection 综采放顶煤工作面对接的研究与应用
- blasting coal caving face by blasting 炮采放顶煤
- Fully- mechanized coal caving face 综放工作面
- fully- mechanized top- coal caving face 综放工作面
- Fast installation and backout of fully mechanized top coal caving face 综放工作面快速拆除与安装实践
- 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
- Composition of coal loss and the ways to increase recovery rate in fully mechanized top coal caving face 综放工作面煤炭损失构成及提高资源回收率途径
- Similar simulation research on arch mechanism of direct roof falling under fully mechanized top coal caving face 综放采场直接顶垮落成拱机理相似模拟研究
- Ground pressure in light mechanized top coal caving face in the deep area of mine 深部轻放面矿压规律研究
