有色金属科学与工程Issue(3)：72-77,6.DOI:10.13264/j.cnki.ysjskx.2015.03.014
采场顶板稳定性位移与声发射组合识别研究
Stope roofing stability displacement and its identification by acoustic emission features
摘要
Abstract
The roof deformation of underground projects is a complex nonlinear process. The single monitoring means is insufficient to determine its roofing stability accurately. Standard deviation of displacement monitoring sample for roofing deformation process is deduced based on mathematical statistics. Three deformation stages for stope roofing, non-deformation, stable deformation and accelerated deformation are characterized according to the fore-mentioned results. Acoustic emission characteristics are analyzed during rock deformation and failure according to the combined analysis results of displacement and acoustic emission. The stability criterion of roof is divided into four kinds of modes. Combined with the engineering example of a mine, the roof failure is accurately predicted during mining process. The result provides a new data processing method for stability analysis of roof of underground projects by improving the accuracy of roof stability criterion.关键词
标准差/加速变形/声发射/顶板稳定性Key words
standard deviation/accelerated deformation/acoustic emission/roofing stability分类
矿业与冶金引用本文复制引用
赵奎,胡源,王晓军,冯萧,卓毓龙..采场顶板稳定性位移与声发射组合识别研究[J].有色金属科学与工程,2015,(3):72-77,6.基金项目
国家自然科学基金资助项目（51304083）；江西省科技支撑计划项目 （）
