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- Keywords Heshan Formation coal seam;Upper Permian Series;coal quality character;environmental condition;Yishan coalfield;Guangxi; 合山组煤层;上二叠统;煤质特征;环境条件;宜山煤田;广西;
- Heshan Formation coal seam 合山组煤层
- The Taiyuan Formation No.16 coal seam in Yanzhou coal mining area is researched with the micro study method systematically. 用微观研究的方法,对兖州矿区太原组16号煤层的煤相进行了研究。
- Coal miners; coal seams; coal haulers. 煤矿工; 煤层; 运煤工
- Parker Formation coal mine blast mining method adopted, with 450 employees. 柏家沟煤矿采取爆破采煤法，拥有职工450人。
- 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。
- Coal seams intermixed with iron ore. 煤层和铁矿混杂在一起。
- 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 resources are very rich in Yaojie formation of Middle Jurassic Series in the middle west part of the Basin,and the coal seam gas partially enriches in Yaojie and Tanshanling coal fields. 盆地中西部中侏罗统窑街组蕴藏着丰富的煤炭资源，煤层气局部富集于窑街、炭山岭煤田。
- It is discovered that the liptinite macerals in Taiyuan Formation coal are complete in variety and unique in characteristics. 渗出沥青体和荧光质体属次生显微组分,是煤生烃排烃的煤岩学标志,并可能代表了初次运移出的重质和轻质烃类组分。
- 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。
- Keywords basin bottom fan;allochthonous coal;Heshan Formation;Penglaitan;Guangxi Province; 盆底扇;异地煤;合山组;蓬莱滩;广西;
- 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。
