摘要
应用数值模拟方法分析了顶煤强度和刚度以及厚度对综放工作面支架支护强度的影响,由此得出,顶煤强度和刚度以及厚度对支架支护合理强度均产生了较大的影响:较软顶煤和坚硬顶煤要求支架支护强度较高,而中硬顶煤要求支架支护强度较低;顶煤厚度小于等于5 m时,支架合理强度主要受顶煤强度和刚度的影响,而顶煤厚度大于5 m时,支架支护合理强度同时受顶煤强度和刚度以及厚度的影响.
The effect of the strength and rigidity as well as thickness of top coal was analyzed on the supporting intensity for top coal mining face. It is concluded that the effect is large. Soft or hard top coal requires higher supporting intensity, while medium hard top coal requires lower. The reasonable intensity is affected mainly by the strength and rigidity of top coal when the thickness of top coal is less than or equals 5 m. It is affected by not only the strength and rigidity but also the thickness when the thickness is more than 5 m.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2006年第2期145-149,共5页
Journal of China Coal Society
关键词
综放开采
支架合理支护强度
顶煤强度及刚度
顶煤厚度
数值分析
fully mechanized top coal mining
supporting intensity of support
strength and rigidity of top coal
thickness of top coal
numerical analysis
