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- Mining Practice in Steep Coal Seam under "Grey Hat" "灰帽"下急倾斜煤层采煤的实践
- steep coal seam with large inclined angle 大倾角急倾斜煤层
- Research on strata behavior about hard roof steep coal seam 急倾斜硬顶中厚煤层开采矿压显现规律的研究
- NUMERICAL SIMUL ATION ON THE STABILITY OF OPENING IN STEEP COAL SEAM 急斜煤层巷道稳定性数值模拟
- Study on pressure behavior laws of blasting mining face in steep coal seam 大倾角炮采面矿压显现规律研究
- Keywords steep coal seam;exploitability;fuzzy comprehensive evaluation; 急倾斜煤层;可采性;模糊综合评价;
- Analysis for support-surrounding rock system structure of longwall face on the strike for steep coal seam 大倾角煤层走向长壁采面支架与围岩系统分析
- Study on Application of Bolting With Wire Mesh in Steep Coal Seam Roadway with Comprehensive Roof and Large Tilt Angle 锚索网支护在大倾角复合顶板煤巷的应用实践与分析
- Using Integrated Control Techniques to Prevent Spontaneous Combustion in Steep Coal Seam 采用综合治理技术预防急倾斜煤层自燃
- Keywords steep coal seam;immediate roof;voussoir beam structure;strata behavior; 大倾角煤层;直接顶;砌体结构;矿压显现;
- Structural Analysis for Roof Movement for Steep Coal Seams 大倾角煤层采场顶板运动结构分析
- Roof Control of Steep Coal Seam 急倾斜煤层的顶板管理
- Ground pressure of top-coal caving face in difficult mining steep coal seams 急斜难采煤层水平分层放顶煤开采矿压研究
- high steep coal seam 大倾角煤层
- steep coal seam 急倾斜矿层
- Steep coal seam mining 急倾斜
- Coal miners; coal seams; coal haulers. 煤矿工; 煤层; 运煤工
- Coal seams intermixed with iron ore. 煤层和铁矿混杂在一起。
- A Caving Blast Test with a Detonating Fuse over the Tough Roof of a Group of Steep Coal Seams 急倾斜煤层群坚硬顶板导爆索爆破放顶试验
- The Gaussian curvature of No.3 coal seam in Qinshui basin is calculated. 计算了沁水盆地3号煤层的高斯曲率。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries