摘要
基于大采高综放工作面煤壁上方顶煤破坏特征和运移趋势,将煤壁简化为下部刚性固支、上端自由受压的等直细长压杆,通过压杆模型尖点突变标准势能函数的理论推演,得出大采高综放工作面煤壁片帮力学条件判据,明晰煤壁片帮控制关键技术措施。
Based on the failure feature and movement tendency of the coal on the top of the rib in top-coal mining face,the rib can be simplified as a compression strut which is rigid clamped at the bottom of the rib and free clamped on the top of the rib.The condition criterion was obtained in top coal caving face with large mining height by theoretical derivation of the standard potential energy function,and key technical measures was pointed out at the same time.
出处
《华北科技学院学报》
2016年第2期7-9,14,共4页
Journal of North China Institute of Science and Technology
基金
国家自然科学基金资助项目(51574243)
中央高校基本科研业务费资助(3142015086
3142015003)
关键词
大采高
尖点突变
等直压杆
条件判据
large mining height
cusp catastrophe theory
compression strut
condition criterion
