摘要
本文从实际综放工作面存在问题出发，以现场观测资料和实验室模型研究结果为基础。建立了顶煤在垮落前的力学模型，利用块体力学正确地计算出放顶煤支架顶梁所受到的外力．利用松散介质力学全面分析了放顶煤支架掩护梁上所承受的外力，从而提出了计算支架合理工作阻力的新方法和具体公式．
On the basis of in-situ observation and laboratory simulation,a top coal caving mechanic model was established according to the problems remained in top coal caving workface.The lnagnitude of load on the suppor canopy is dctermincd by key block mechanic and the force which acts the support shield is analysed by particle medium mechanic.A new method and full equations which estimate suitable support capacities are given in this paper.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
1994年第3期261-269,共9页
Chinese Journal of Rock Mechanics and Engineering
关键词
放顶煤
块体力学
支架
计算
综采
Top coal caving,Key block mechanic,Particle medium,Mechanic,Support capacity.
