三维地震勘探技术在小窑采空区探测中的应用

Application of 3D Seismic Prospectingto Small Coal Mined-out Area

小窑采空区对地面工程存在巨大的安全隐患,三维地震勘探技术具有很高的空间分辨率,在小窑采空区探测中有很大优势。通过前期地质调查,设计相应的数据采集观测系统,进行精细数据处理,对小窑采空区进行三维立体成像,最后利用人机交互进行小窑采空区地震剖面和属性解释,划定小窑采空区边界,查明其上覆岩层赋存情况,从而为地面工程优化施工设计及提供安全保障。

There is a huge hidden danger for the surface engineering in the small coal mined out area. 3D seismic prospecting technology has highly resolution in 3D space, and has a great advantage in detecting small coal mined out area. Through the preliminary geolog ical survey, the relevant data acquisition observation system is designed, the data are pro cessed precisely, 3D image of the small mined out area is obtained and finally man ma chine interaction is used to interpret seismic profile and its attributes so as to determine the boundary of the small mined out area and detect the overlying strata occurrence, which optimizes the construction design and provides security for ground work.