可溶岩在我国分布极广,岩溶问题与许多工程,例如水利和水电工程、公路和铁路工程、工业与民用建筑工程等有关。查明隐伏地下的岩溶分布情况,如位置、范围、深度、大小形状等,为各项工程提供可靠地质资料至关重要。利用地质雷达可较为有效地解决这一问题。地质雷达沿用了对空雷达的基本原理,但它发射的电磁波不是在空气中传播,而是在岩石,土壤等介质中传播。通常,岩溶与其周围介质存在较明显的物性差异,尤其是溶洞内的充填物与可溶性岩层问存在的物性差异更明显,它们一般是土壤、水和空气,这些介质与可溶性岩层本身由于介电常数不同形 Soluble rocks are widely distributed in our country, karst problems and many projects, such as water conservancy and hydropower projects, road and rail engineering, industrial and civil construction projects. Identifying hidden underground karst distributions, such as location, extent, depth, size and shape, etc., it is important to provide reliable geological data for each project. The use of geological radars can be more effective in solving this problem. Ground-based radar follows the basic principle of air-to-ground radar. However, the electromagnetic waves it launches do not propagate in the air but spread through media such as rock and soil. Generally, there are obvious physical differences between the karst and the surrounding medium. In particular, there are more obvious physical differences between the fillings and the soluble rocks in the karst cave. They are generally soil, water and air. These mediums and the soluble rocks themselves are characterized by dielectric constant Different shape