【摘要】 利用数值模拟的方法,以北京木城涧煤矿大台井建筑物下压煤开采为工程背景,研究了急倾斜煤层群开采条件下覆岩破坏和煤柱稳定性的规律,为急倾斜煤层群建筑物下压煤开采提供了必要的技术依据。更多还原

【Abstract】 With numerical simulation technique, the overburden failure and coal pillar stability in steep multi-seam mining was studied based on the actual conditions of Beijing datai coal mine. These numerical observations of steeply inclined coal seams would provide special foundations for the designs in steep coal seams mining under buildings.更多还原