A method of shallow high resolving seismic reflection survey-Landsonar

摘要

Landsonar, the method of elastic reflection wave which records the of continues profiling with very short offset and wide band, has more advantages. It has been successfully used on high resolution exploration of shallow stratums, obtaining near-surface parameters for seismic statics, surveying depth and smaller karst caves, geological prediction of the front of drift in the tunnel construction, checking on the quality of lining of thick concrete structure and empty areas in their back and so on. Some special characteristics of this method, such as the receive system with very wide band, the band-pass filtering (100-500Hz) getting for different time windows can make work it normally on busy streets.