梁式顶板压杆失稳机理的分析研究  

Analysis of beam instability mechanism of the roof bar

作　　者：刘中华[1,2] 王旭宏[2,3] 胡耀青[1] 

机构地区：[1]太原理工大学采矿工艺研究所,山西太原030024 [2]太原理工大学阳泉学院,山西阳泉045000 [3]太原理工大学矿业工程学院,山西太原030024

出　　处：《化工矿物与加工》2010年第4期27-29,共3页Industrial Minerals & Processing

基　　金：国家重点科学基金(E040101)

摘　　要：基于水平应力远大于垂直应力的情况,根据采空区老顶的受力性能,将采空区老顶简化为两端均为固定约束或铰支约束的受压杆件,结合压杆稳定的相关理论,分析了采空区老顶的稳定性,并在此基础上讨论了提高其稳定性所应采取的适当措施。Based on the situation that the horizontal stress is far greater than the vertical stress,and the mechanical behavior of the roof in mined-out area, roof of mined-out area is simplified as the pressured bar with both ends being fixed or hinged, its stability is discussed. The appropriate measures to be taken to improve its stability are put forward in combination with the relevant theory of pressured bar stability.

关 键 词：采空区顶板 受压杆件 稳定性分析 

分 类 号：TD313.1[矿业工程—矿井建设]