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- Relationship between height of inbreak zone and fracture zone and dip angle of steeply dipping coal seam has been discussed. 急倾斜煤层中冒落带和裂隙带高度随煤层倾角变化的规律已被褐示[7]。
- Steep dip coal seam 急斜煤层
- Crack unstable evolutive regular of steeply dipping coal seam due to synthetical mechanization top coal caving 大倾角综采放顶煤开采裂隙非稳态演化规律
- 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
- steeply dipping coal seam 大倾角煤层
- Precaution of deep roadways'floor heave in steep dip coal mine 急倾斜矿井深部巷道底鼓的防治
- Techniques and practice of longwall with top caving mining in soft and combustible coal Seam with steep dip, extra-thickness 急倾斜特厚松软易燃煤层综放开采技术与实践
- The example of the large dip angle and the coal seam group is the Yuexu area in Tangshan Mining Filiale. 大倾角、煤层群采煤设计以开滦唐山矿业分公司重点衔接区域岳胥区-680水平采区为设计对象。
- thin and thick seam with steep dip 急倾斜较薄厚煤层
- Coal miners; coal seams; coal haulers. 煤矿工; 煤层; 运煤工
- It trends nearly E-W and is a dissymmetrical anticline belt with steep dip angle in the north limb and gentle in the south. 该构造带走向近东西，为北陡南缓两翼不对称的隆起带，上部发育“塌陷式”地堑断裂系统。
- The fact shows that the single leg type shield support and the technology of discharging coal in the side is an efficient method of coal mining under the condition of steep thick coal seam. 通过井下生产实践表明：单腿支撑柔性掩护支架采煤法和侧向放煤技术相结合是开采大倾角厚煤层一个新的、有效的采煤方法。
- Though it is roughly recognizable for the outlines of regional structure and volcanic rocks, the images of steep dip strata and boundary of volcanic rock are smeared. 虽然区域构造与火山岩的复合发育区的基本轮廓可被识别，但陡倾角地层的反射成像不清晰，火山岩地层边界模糊。
- The coal seam of No. 5102 face in Wuyang coal mine is steep, soft, and undulate.Aiming at this problem, the displacement and stress of top coal, roof and floor were researched by using UDEC software. 摘要针对五阳煤矿5102工作面倾角大、煤层松软、煤层起伏大、综放开采的条件，利用UDEC数值模拟软件分别通过沿工作面走向和倾向剖面建立模型，对顶板（煤）、底板的位移和应力变化进行了研究。
- Coal seams intermixed with iron ore. 煤层和铁矿混杂在一起。
- Authors introduce a fully mechanized mining technology with great mining length, height and dip angle adopted by No.12 colliery of Pingdingshan Coal Group under the condition of outburst coal seam. 本文介绍了平煤集团十二矿在高突条件下,进行的大采长、大采高、大倾角综采开采技术,采取的措施和取得的经验,并提出了有待解决的技术问题。
- Approach on mining processing in steep dip middle - thick seam 关于急倾斜中厚煤层开采工艺的探讨
- 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。
- Factors affected coal seam permeability change and its law is analyzed. 分析了煤层透气性变化的影响因素及变化规律。
- The outburst-proneness of 6# coal seam are studied with five indexes. 采用5种指标对该矿6%23煤层冲击倾向性进行了实验研究。
