摘要
从研究采场支架受力特点出发，将支架与围岩视为有机的整体，深入分析了它们之间的耦合作用，认为老顶断裂后形成的给定变形与支架作用力无关，而与采空区处理方法及采高等有关，支架承受的给定变形压力则与直接顶的整体力学性能有关，并反比于直接顶（含顶煤）厚度∑ｈ．从而在理论上进一步揭示了支架工作阻力与顶板下沉量之间的耦合关系。
The support and the surrounding rocks are regarded as an organic integrity and their coupling effect are discussed, on the basis of the stressing of the supports in the workings. It is considered that the given deformation formed after fracture of the main roof is not related to the support acting force, but related to mining height and the method for treatment of the mine out area etc. The given deformation pressure on the support is relevant to the integral mechanical properties of the immediate roof and it is in reverse proportion to the thickness of the immediate roof including the top coal ∑h. It reveals further in theory the coupling relation between the resistance of support and the amount of roof convergence.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1996年第1期40-44,共5页
Journal of China Coal Society
关键词
砌体梁
动架
围岩
双曲线
耦合作用
voussoir beam
support
surrounding rocks
hyperbola
