【摘要】 老窑塌陷采空区造成的透水事故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.针对老窑采空区不同的塌陷类型,建立多种不同内部结构的塌陷采空区地质模型。并采用有限差分法数值模拟技术对其进行正演模拟,分析出不同塌陷采空区在生成时间剖面上的波场特征.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判别标志以及识别特征,为矿井提供出准确的塌陷采空区位置.更多还原

【Abstract】 The water inrush accident caused by the collapse of gob area in old mine seriously threaten the production and safety of large—scale mine,detecting the collapse of gob area has become an important research topic in the 3D seismic exploration.In view of the different collapse types of gob area in old mine,establish a variety of geological model of the different internal structure on the collapse of gob area,using the technology of the finite—difference numerical simulation carried out the forward modeling and analyse the wave field characteristics of different the collapse of gob area in the generating time section,combined with some typical engineering examples,summed up the discriminate mark and the identifying characteristics of the collapse of gob area in the seismic data,in ord to provide accurately position of the collapse of gob area of large—scale mine.更多还原