摘要
瞬变电磁法（ＴＥＭ）属时间域电磁法，采用不接地线框发射接收，该方法对地表条件要求不高（如在坚硬的水泥地面、岩石面、松散的沙滩及水面上都能正常工作），收发装置灵活多变，能够用于各种复杂的地形（如山区、建筑物密集区）．实际工作结果表明：ＴＥＭ法对岩溶构造的响应清晰、直观；对断裂反映灵敏；通过参考已知钻孔资料和多种方法综合进行正反演，可以对岩性分层做出较好的解释；在水域和复杂地形区，具有其它常规物探方法难以达到的效果。
s transmitter and receiver loops need not to be connected to the earth, TEM(Time Domain Electromagnetic Method)application is not restricted by the earth surface condition(for example, the method can work on hard resistant cement surface,rock surface, water surface and sandy beach).The method can use several kinds of transmitters and receivers loop sets,and can work in the very complicated area(hilly area, the buildings concentrated area and so on).The survey results indicate that TEM has clear response to karst structure;TEM is sensitive to fault stlucture, according to consulting known geological data and model inverting, TEM has the abilities to devide layers lithologically; in the water area and the complicated topography area,TEM can get better results by this method than by ordinary geophysical methods.
出处
《桂林工学院学报》
1995年第4期382-387,共6页
Journal of Guilin University of Technology
关键词
工程地质勘探
瞬变电磁法
塌陷
桥址
岩溶构造
engineering geophysics
TEM
subsiding
bridge sites
karst structure
fault structure
