329 / 2023-10-15 21:00:11

3D Analogue modeling of Love type channel wave

Love type channel wave,Analogue modeling,channel wave seismic exploration

Channel wave seismic exploration has been widely used in the exploration of hidden disaster-causing bodies in underground coal mines because of its high resolution and small energy attenuation. However, the accuracy of channel wave seismic exploration at this stage cannot meet the requirements of mine intelligence. In order to improve the detection accuracy, a lot of research has been carried out in numerical simulation. As the traditional numerical modeling has many assumptions and the complex wave field propagation mechanism of channel wave, in the face of high-precision detection requirements or complex geological structures, the effect of guiding actual exploration of numerical modeling is limited. However, analogue modeling is not limited by computational complexity and has fewer constraints because its observation object is the actual wave field, so the modeling results are closer to the actual exploration. At present, the subject of channel wave analogue modeling is mostly Rayleigh channel wave under the condition of two-dimensional model, and the research of Love channel wave in three-dimensional channel wave analogue modeling is less. Therefore, based on the propagation characteristics of Love type channel wave field, the Love type channel wave in analogue modeling is successfully observed through the construction of analogue modeling platform, the design and manufacture of analogue modeling model, and the solid ultrasonic analogue modeling, and the wave field dispersion curve is consistent with the theoretical value. At the same time, the research and development found that the frequency components of the wave field before and after the fault have undergone a significant conversion with the Airy phase as the boundary, and the channel wave energy is almost completely attenuated after passing through the fault. The research results will provide basic platform support for acquisition, processing and interpretation methods for subsequent quantitative and refined seismic channel exploration.