摘要
阐述了围岩非稳态破坏的声发射监测的特征及子波变换的信号分析技术 ,尝试将子波变换技术应用在采空区动力学破坏监测的非稳态信号分析中 ,给出了具体的分析过程与步骤 ,最终结合统计力学的理论 ,对采空区围岩非稳态破坏位置进行了统计推断以及对断裂位置正确定位 ,取得了很好的效果。从而证实这种信息挖掘方法 ,将会与岩石的变形破裂机制密切联系起来 ,从本质上给围岩破裂机制和非稳态损伤与破坏提出更为有效的分析新方法。
The characteristics to be monitored of the acoustic emission in unstable failure of surrounding rock and the signal analysis technique of subwave conversion are described.The subwave conversion technique was used,in an attempt to analyze the unstable signal in monitoring the dynamics failure of mined area,whose analysis process and procedures are detailed.Combining the statistics mechanics theory,a statistic deduction of the unstable failure position of the surround rock of mined area and the location of the fracture were made,which achieved good results.It is proved that this information digging method,when combined closely with the rock deformation fracture mechanism,will provide a more efficient new method for analysing the surrounding rock fracture mechanism and unstable damage and fracture from the nature.
出处
《金属矿山》
CAS
北大核心
2003年第2期15-17,共3页
Metal Mine
基金
国家自然科学基金 (5 0 0 740 0 2 )
国家教委博士点基金(2 0 0 0 0 0 0 80 2 )联合资助项目
