摘要
以深基点观测为主，系统研究了“两硬”综放面在实施预处理的情况下顶煤顶板的冒放规律及冒放结构，依此建立了老顶破断时的悬臂式力学模型，运用瞬间暂时平衡理论，推导了老顶来压的支架载荷估算公式，为“两硬”综放面的煤岩冒放控制提供了理论依据。
With deep base point observation,the paper systematically studied top coal and roof caving lows and caving structure under pre processing in sub level caving fully mechanized face with hard coal and hard roof,established the hanging mechanics model at main roof crack moment,and infered support load calculating formula by moment temporay balance theory.It provided theory basis for coal rock caving control sub level caving fully mechanized face with hard coal and hard roof.
出处
《太原理工大学学报》
CAS
1999年第3期221-224,235,共5页
Journal of Taiyuan University of Technology
基金
国家自然科学基金
关键词
综放面
冒放
顶板
综放开采
坚硬煤层
hard coal and hard roof
sub level caving fully mechanized face
caving
crack
