【摘要】 根据实验和现场观测结果 ,提出了壁式采场上覆岩层中存在抛物线形拱结构 ,建立了该结构的力学模型 ,并进行了内力分析 ,同时提出了工作面支架受载的计算方法更多还原

【Abstract】 According to the result of Lab test and in site observation,this paper put forward that the arch structure similar to parabola exists in overlying bed of longwall face.The paper sets up mechanics model of the arch structure and makes analysis of inner force of the structure.simultaneously,it brings forward calculation method of load to the supports on the face.更多还原