A method and system for tunnel advance prediction of seismic waves by acceleration probe

Abstract

The application relates to the technical field of tunnel earthquake prediction, and discloses a kind of acceleration probe's earthquake wave tunnel advanced prediction method and system, method includes using piezoelectric acceleration three-component sensor to collect the X, Y, Z three-component data of tunnel earthquake wave, records direct wave, reflected wave and acoustic wave signal;X, Y, Z three-component data is carried out denoising processing;According to tunnel geological data, the karst tunnel velocity model including longitudinal wave velocity and transverse wave velocity is established, the forward continuation wave field and the reverse continuation wave field are carried out cross-correlation operation, and the PP wave and PS wave migration profile are generated;The point sum and point product operation of PP wave and PS wave migration data is carried out, and the point sum migration profile and point product migration profile are generated;Low-frequency contour information, high-frequency detail information and integrated interpretation result are integrated to generate tunnel advanced prediction report.The system comprises a seismic wave acquisition module, a model establishment module and an advanced prediction module.The application can obtain more reliable interpretation results.

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