中硬特厚煤层综放工作面合理参数确定研究

Reasonable Parameters Confirmation of Full-mechanized Caving Mining Face in Medium-hard and Extremely Thick Coal Seam

针对浅埋深中硬特厚煤层特点,通过数值模拟,研究不同工作面长度和采高,前方支承压力变化规律以及上覆岩层破坏高度,从而对工作面长度和采高进行优化,得出中硬特厚条件下合理工作面参数。

Aimed at the characteristics of low-burying medium-hard and extremely thick coal seam, different mining face length and mining height, varying rules of advanced abutment pressure and damage height of overburden strata are researched with numerical simu- lation, thereby the mining face length and mining height are optimized, reasonable mining face parameters are acquired.