Study On Multi-channel Surface Wave Analysis System And Its Engineering Application Based On Qt

Transient surface wave exploration,specially Rayleigh wave exploration, has the advantages of non destructive, rapid, economical and effective, which is not possessed by the traditional exploration method. It has been widely concerned by the exploration industry since its appearance. Because the method can directly provide the variation of the velocity with depth in the rock and soil layer, in recent years, it has become an important method to solve the complex engineering geological problems.This paper on the analysis of the multi-channel transient surface wave processing software conditions, absorb and draw lessons from other advantages of processing software, avoid flaw and the insufficiency of other processing software performance, preparation of a new processing software system, based on C++GUI Qt4.8 platform structures, procedures, the use of this platform can support the Qt Sql database implementation of the whole process of test data, the processing parameters as well as the result of management. Using high precision 2D FFT technology to pick up surface wave dispersion curves, selection of Occam inversion method to try multiple parameter inversion calculation. The site of the processing software can implement multiple batch processing, real-time data processing of the measured points for each comparison and analysis, in the process of batch processing, by borrowing, and constraints of the model to improve the speed and precision of inversion. At the same time, the software can explain the results of visual display and data output interface, so as to achieve the transient surface wave to deal with the results of engineering purposes, better service for engineering geological personnel.