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- Discussion on the relation of the full-mechanized work face coal seam dip angle and the advanced quantity 浅谈综采工作面煤层倾角与超前量的关系
- coal seam dip angle 煤层倾角
- The example of the large dip angle and the coal seam group is the Yuexu area in Tangshan Mining Filiale. 大倾角、煤层群采煤设计以开滦唐山矿业分公司重点衔接区域岳胥区-680水平采区为设计对象。
- Authors introduce a fully mechanized mining technology with great mining length, height and dip angle adopted by No.12 colliery of Pingdingshan Coal Group under the condition of outburst coal seam. 本文介绍了平煤集团十二矿在高突条件下,进行的大采长、大采高、大倾角综采开采技术,采取的措施和取得的经验,并提出了有待解决的技术问题。
- Relationship between height of inbreak zone and fracture zone and dip angle of steeply dipping coal seam has been discussed. 急倾斜煤层中冒落带和裂隙带高度随煤层倾角变化的规律已被褐示[7]。
- Design on the caving of the large dip angle coal seam group 大倾角煤层群采煤设计初探
- Study on the light extraction technology in the large dip angle coal seam 俯伪斜大倾角煤层轻放回采工艺的研究与实践
- Application of the light support in the large dip angle extreme thick coal seam recovery 轻放支架在大倾角特厚煤层开采中的应用
- dip angle coal seam 倾角煤层
- CALCULATION FOR MAXIMUM SUBSIDENCE INDUCED BY COAL SEAM MINING WITH DIFFERENT DIP ANGLES 基于倾角变化的最大下沉值计算方法
- During themining of the face using fully-mechanized top -caving method, the oblique face length is seen to be increased due to variation of dip angle of seam. 介绍了在"三软"不稳定厚煤层综放工作面回采过程中,由于煤层倾角变化造成切巷长度增加后,所采用的增加液压支架及前后部输送机延伸的技术。
- Coal miners; coal seams; coal haulers. 煤矿工; 煤层; 运煤工
- All planar structures are represented by a strike line and dip angle. 一切平面构造均可用向线和倾斜角来表示。
- Coal seams intermixed with iron ore. 煤层和铁矿混杂在一起。
- The upper continental formations are high dip angle structures in Heba 1 Well. 河坝1井上部陆相地层属于高陡构造,地层倾角大,极易发生井斜。
- 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。
- The article introduces the shortwall mining method along strike in medium-thickness seam with great dip angle,which is based on individual hydraulic prop and has brought great economic effect. 在大倾角中厚煤层推行走向短壁采煤方法,使用单体液压支柱,取得较好的技术经济效果。
- 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。
- The plane dips to the south with a dip angle of fifty-five degrees. 倾斜断面倾向南,倾角55度。