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- coal seam of face 工作面煤层
- The coal seam of fully mechanized top-coal caving face 1151(3) in Xieqiao coal mine of Huainan mining area is soft and loose,and is of low permeability and poor wetting condition. 基于淮南矿区谢桥煤矿1151(3)综放面,煤层松软、渗透性低、湿润性差的特殊条件,采用煤层注水工艺技术降尘,在注水孔布置方式及参数、注水孔封孔工艺、注水工艺等方面采取一定的技术措施。
- 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。
- The main coal seam of Taiping colliery is 11~# coal seam with a thickness of 1.5 m. 太平煤矿主采11%23煤层;煤厚1.;5 m
- Part roof fall accident cause is analyzed in flase top mining in No.5 Coal Seam of Pinggang Coal Mine.The prevention and cure measures are pointed out. 通过对平岗煤矿5%23煤在托伪顶回采时发生的局部冒顶事故原因的分析,提出了解决该问题的防治措施。
- LIU Wengang, JIANG Yaodong, ZH0U Hongwei, et al.Experimental study on outburst proneness coal seam of meso character and crack destabilization[J]. 刘文岗;姜耀东;周宏伟;等.;冲击倾向性煤体的细观特征与裂纹失稳的试验研究[J]
- This paper cleals with the organo-facies in the first coal seam of basin, which is variable both in thickness and in quality. 用有机岩石学方法及热解分析法详细研究了这些煤相。
- The main target coal seam of Xieqiao Mine is directly covered with the Quaternary bottom gravels, whose impermeability affects the reasonable retainment of waterproof pillar. 第四纪底砾层直接覆盖在谢桥煤矿煤系地层之上,其隔水性能影响到防水煤柱的合理留设。
- With the increase of the depth of excavating, the great thick gravelstone layer aquifer of Tertiary system threatens the fourth coal seam of Shanxi group more and more. 华丰井田第三系巨厚砾岩含水层对山西组4煤安全开采的威胁程度随开采深度的增加而日益严重。
- We take the 14# coal seam of Xiaonan coal mine of Tiefa basin as an example and analyse the geologic agent systematically which influences the gas content. 未开采煤层瓦斯含量及影响因素研究,是煤矿安全生产的重要基础研究工作,以铁法盆地晓南矿未开采的14%23煤层为例,系统分析了影响瓦斯含量的地质因素。
- This seam of coal reposes on a layer of clay. 这个煤层处于一层黏土岩之上。
- Because of faults and ground water H_2S gas of the coal seam of the east side of the dike is escaped in late stage,while the west side takes on H_2S abnormity because of well capping conditions. 岩墙东侧因断层和地下水的作用;煤层中H2S气体后期遭逸散;西侧因封盖条件较好而呈现出H2S气体异常.
- Because of faults and ground water H2S gas of the coal seam of the east side of the dike is escaped in late stage, while the west side takes on H2S abnormity because of well capping conditions. 岩墙东侧因断层和地下水的作用,煤层中H2S气体后期遭逸散,西侧因封盖条件较好而呈现出H2S气体异常通。
- Research has been in progress round the technology difficult problem that mines in the thick coal seam of extremely soft rock and easy self-ignition of TieFa coal industry group by this thesis.1. 本论文围绕铁法煤业集团小康矿极软岩层、易自燃厚煤层开采的技术难题进行了研究。
- Taking 2-2 coal seam of Halagou coal mine for example,laneway system and its interrelated parameters with short-wall and continuous mining machine in Shendong mining area were introduced. 以哈拉沟煤矿2-2煤层的开采系统为例,介绍了神东矿区连续采煤机短壁式机械化开采的巷道系统及其相关参数。
- From the corner of his eye barney see the sea of face upturned toward him. 巴尼从眼角斜瞥见到那麽多的面孔朝他翻转过来。
- Coal gas dynamics is a frontier geoscience that makes a special study of the law for gas flow and the pressure distribution in coal seam of gaslogged strata as well as gas dynamic variation. 煤层瓦斯动力学是一门主要研究煤(岩)层内瓦斯(煤层气)运移和分布规律的边缘地球科学。
- The first man was small and quick, dark of face. 领头的那个人短小精干,脸庞黧黑。
- The results show that there is a good relation between EMR and the coal stress state, and there are various stress states and deformation and fracture states in coal seam of working faces. 结果表明:电磁辐射变化与煤体应力状态有较好的对应关系,工作面煤体内部具有多种应力状态和变形破裂状态。
- Exposed burns of face are easily affected. 面部烧伤的裸露易于感染。