您要查找的是不是：
- So the similar simulation method is used in research on the instability mechanism and displacement rules of overlying magmata strata at the process of deep coal seam exploitation. 文章以相似模拟实验为手段研究了深部煤层开采过程中高位赋存的岩浆岩的运移机理,得出岩浆岩初次破断为固支梁的下位拉断非全厚破断,且破断后立即失稳;
- Probe and Research on Longwall Caving with Water Preservation in Deep Coal Seam 浅埋煤层长壁保水开采探究
- Developed Arrangement and Coal-preserving Structure Analysis on Deep Coal Seam of Wannan Coalfield 皖南煤田深部煤层赋存分析及开拓安排
- New-style Bolting Supporting and Initial Parameter Design of Tunnel in Deep Coal Seam 深部煤层轨道巷新型锚杆支护与参数初始设计
- deep coal seam 深部煤层
- tunnel in deep coal seam 沿煤巷道
- Coal miners; coal seams; coal haulers. 煤矿工; 煤层; 运煤工
- Introduced the technology to control the roof in the gob with man-forced deep drilling and explosion in 14#coal seam as well as to analyze the effect. 介绍14号层人工强制深孔爆破处理采空区顶板的技术以及在实践中得出的经验,并对其效果进行了分析。
- Coal seams intermixed with iron ore. 煤层和铁矿混杂在一起。
- And then studied the area channel flowed along and destructiveness to the coal seam, provide a reference for the mining of coal seam 8 in middle to deep part of the minefield. 并对古河流的流经区域和煤层的破坏程度作了研究,为井田中深部八煤层的开采提供了参考依据。
- Keywords underground coal gasification;the deep coal seams ignition;electric ignition;chemic ignition; 煤炭地下气化;深部煤层点火;电点火;化学点火;
- 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。
- Study and practice of bottom slicing relieving mining in condition of trouble coal seams with high ground stress under deep coal mine 深井高应力难采煤层上行卸压开采的研究与实践
- 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。
- Wennan colliery of Xinwen Coal Mining Group is an old coalmine and is mining deep coal layer. 汶南煤矿是新汶矿业集团进入深部开采的老矿井。
- 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。
- Controlled source audio magnetic telluric (CSAMT) is an effective approach to detect deep coal stratum in complicated-terrain mountain. 摘要对于复杂地形山区深部煤系地层的勘探，可控源音频大地电磁法(CSAMT)是比较有效的一种方法。
