【摘要】 老窑塌陷采空区严重威胁着大型矿井的生产与安全,探测出塌陷采空区已成为当前三维地震的一项重要研究课题。根据采空区的实际赋存形态建立了地质模型,并采用射线追踪理论进行数值模拟,在时间剖面上较系统地分析了塌陷采空区的形态特征,并分析了反射波的频谱特征。结合一些典型的工程实例,总结出塌陷采空区在地震资料上的地震响应特征以及地震属性特征,对煤矿安全生产具有指导意义。更多还原

【Abstract】 Collapse goaf in old coal mine seriously threatens the production and safety of large scale mine,detecting the collapse goaf has become an important research topic in current 3D earthquake. Geological model is established according to the actual occurrence of the goaf,using ray tracing theory carries out numerical simulation.Systematically analyzes the morphological characteristics of collapse goaf and analyzes the spectrum characteristics of reflected wave on the time section. Combines with some typical engineering examples,sums up the seismic response characteristics and seismic attributes characteristics of the collapse goaf in the seismic data,it provides a guiding significance for coal mine safety production.更多还原