The working face mining distance can decrease when fracture occurs and the mining width increases.
当工作面宽度加大时，开始出现破裂的工作面推进长度减小。
When the mining width reaches to the mining subsidence starting distance, the mining subsidence will grow slowly.
当开采宽度达到地表移动起动距时，地表下沉缓慢增长；
The proper size of coal pillars and mining width for partial mining are studied with theory of continuum mechanics.
本文用连续介质力学的理论，探讨了条带法开采的合理条带尺寸。
By far, association rule mining algorithms can be divided into two main classes: width first and depth first. There are classical and efficient algorithms in each class.
目前关联规则挖掘算法可以分为广度优先算法和深度优先算法两大类，每类都有经典高效的算法提出。
Theoretical analysis shows that coal pillars plastic zone width not only with mining depth, mining height, but with the recovery rate.
理论分析表明，煤柱塑性区宽度不仅与采深、采厚有关，而且也同采出率有关。
The study indicates that with the increase of the coal pillar width the peak mining stress delays its appearance and the increase of the displacement and stress are not synchronous.
研究表明，综放沿空留巷受采场矿压影响时间和程度随留巷煤柱宽度的增加表现出明显滞后现象以及位移和压力增长的不同步现象。
Furthermore, methods and equations for determining the rational width of the mining section based on the principle of minimizing the total cost of the tra...
按剥离物运费和重复剥离费用总和最小的原则得出确定条区合理宽度的方法和表达式。
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。
The opinion was put forward that the infection of roadway driving and coal mining need considered simultaneously when determination the reasonable width for coal pillar.
提出确定沿空掘巷合理煤柱宽度时，不仅需考虑掘巷扰动影响，还应将本工作面的超前采动影响作为一个重要影响因素。
The opinion was put forward that the infection of roadway driving and coal mining need considered simultaneously when determination the reasonable width for coal pillar.
提出确定沿空掘巷合理煤柱宽度时，不仅需考虑掘巷扰动影响，还应将本工作面的超前采动影响作为一个重要影响因素。
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