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- Writer analyzed systemically the mechanism and the influence factors of the spontaneous combustion in the coal seam by the research in the western open cut coal mine of Pingzhuang Coal Group Company. 通过对平庄煤业(集团)公司西露天煤矿的地质灾害调查,分析了煤层自燃的化学热力学机理和影响因素。
- cutting coal seam 煤层切槽
- Grave protrusion coal seam tunnelling hydraulic cutting protrusion-dispelling measures is a new technology in the world. 严重突出煤层掘进水力掏槽防突措施在国际上是一种防突新技术。
- Coal miners; coal seams; coal haulers. 煤矿工; 煤层; 运煤工
- Robert and Slogger were still cutting coal when David reached them. 当大卫到达罗伯特和斯洛格跟前时，他们还在采煤。
- 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。
- How to select road section shape, bolting parameter and roadway construction method in large section cut in thick coal seam according to production reality and bolting theory are introduced. 根据生产实践及锚杆支护理论,论述了在厚煤层大断面切眼中,如何进行巷道断面形状、锚杆支护参数的选择及其巷道的施工方法。
- 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。
- The distribution of minerals in CWS was analyzed by means of cutting coal into slices in order to investigate the influence of minerals on stability of CWS. 用切片法考察了几种矿物在水煤浆体系中的分布情况，并探讨了矿物对水煤浆稳定性的影响规律。
- 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
