inclined high seam mining method [矿业] 倾斜厚煤层采煤法
high seam mining method [矿业] 厚煤层采煤法
high-seam mining 开采厚煤层
high and extra-high seam mining 厚及特厚煤层开采
high seam caving mining 大采高放顶煤开采
High seam mining by using comprehensive mechanized cover caving co al- mining technique, which is an important revolution of coal- mining techniq ue, is the developing direction for the coal mine to realize high- yield and hi gh- efficient.
采用综采放顶煤技术开采厚煤层，是采煤工艺的重大变革，是矿井实现高产高效的发展方向。
参考来源 - 期刊学术社区·2,447,543篇论文数据，部分数据来源于NoteExpress
There are series problems exist in the existing thick seam mining technology with large dip Angle, thus cause low extraction rate, poor safety and high cost.
现有的大倾角厚煤层开采技术存在着一系列问题，从而导致煤矿回采率低，安全性差，成本高。
Fully mechanized caving mining has became mining technology of high output and efficiency in thick coal seam mining.
综采放顶煤技术已成为厚煤层开采的高产高效采煤技术。
Numerical simulation software FLAC2D is used to simulate the failure mechanism of slender coal pillars (which are of much lower width to height ratios) during high wall mining of thick seam.
对特厚煤层条件下采用螺旋钻机开采细长窄煤柱的破坏过程进行了数值模拟。
应用推荐