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- coal seam faults 煤层断层
- With the tectonic geological methods the development properties,the forming mechanics of faults in Coal Seam 11-2 in Payi Coal Mine are analyzed. 采用构造地质学的方法,对潘一煤矿井田内11-2煤层中断层的特征、发育规律及形成机制进行了分析。
- Little faults in coal seam are important for coal and gas outburst prevention and control,and water outburst prevention and control. 煤层小断层对矿井煤与瓦斯突出及矿井突水防治具有重要的实际意义。
- Water channels include coal seam roof and floor mining induced fissures,faults,karstic subsided columns,Quaternary scuttles,fissure concentrated zones and badly sealed boreholes. 充水通道包括顶底板采动裂隙、断层、岩溶陷落柱、第四系天窗、裂隙密集带及封闭不良钻孔等,其中顶底板采动裂隙、断层、岩溶陷落柱为主要导水通道。
- Coal miners; coal seams; coal haulers. 煤矿工; 煤层; 运煤工
- 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。
- Coal seams intermixed with iron ore. 煤层和铁矿混杂在一起。
- 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。
- Coal seams intermixed with iron ore . 煤层和铁矿混杂在一起。
- The way and principle of Gaussian curvature method for forecasting natural fracture zones in coal seam are discussed. 摘要论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法。
- Outburst prevention technique of excavating in coal seam will be directly concerned colliery safety production and excavates taking over. 摘要突出煤层煤巷掘进防突直接关系到煤矿的安全生产和采掘接替。
- Long- wall double working- face combined winning technical practice in faull lager small section coal seam. 断层带小块段煤层走向长壁双工作面联合开采技术实践。
- Research on coal bedding structure is the theory foundation and precondition of coal seam gas exploitation. 煤体层理结构的研究是煤层气开发开采的理论基础和前提条件。
- So it is feasible used the logging data to forecast coal seam gas content,and the applied value is enhance further. 证明用测井资料预测煤层瓦斯含量是可行的,从而进一步加强了测井资料的实际应用价值。
- The authors used the Analytic Hierarchy Process(AHP) in the researches of coal seam floor water-irruption. 将系统工程中的层次分析法引入煤层底板突水的研究中。
- The technology of roadway protection with coal waste residue concrete and application in thin coal seam are introduced. 介绍了煤矸渣混凝护巷技术及其在薄煤层中的应用。
- 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
