Surface wave exploration method is widely used in S-wave velocity structure detection of shallow surface because of its advantages of high resolution, high energy, low cost and convenient operation. In order to take into account the detection depth and shallow resolution of surface wave, this paper achieves a wide-band surface wave dispersion curve by combining different channel spacing, different main frequency geophone and active and passive sources, so as to improve the detection depth while maintaining the shallow resolution. The measured data results show that the combined exploration of surface wave dispersion curve effectively broadens the frequency bandwidth of the dispersion curve, taking into account the inversion depth of shear wave velocity structure and the resolution of shallow velocity structure.
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李红星,李涛,章晨望,等. 浅地表面波频散曲线组合勘探方法[J]. 科学技术与工程, 2020, 20(16): 6343-6349. Li Hongxing, Li Tao, Zhang Chenwang, et al. Exploration methods for subsurface by combined dispersion curves[J]. Science Technology and Engineering,2020,20(16):6343-6349.