Modern Mining ›› 2019, Vol. 35 ›› Issue (09): 56-60.
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Li Wantao,Zhao Kai,Xu Chengyan,Li Honggang
Online:
Published:
Abstract: In order to explore the influence of local sag terrain on the propagation of explosive seismic waves,the propagation characteristics of explosion seismic waves in square,V-shaped and U-shaped terrains are studied by using three-dimensional finite element numerical simulation method.The study found that for the same topography,the order of the velocity peaks of the measuring points is Vx>Vy>Vz; in the case of the same H and W,the U-shaped terrain has the best damping effect; The frequency domain width and the dominant frequency are affected by the different local topography .After the seismic wave passes through the V-shaped and U-shaped terrains,the dominant frequency moves toward the high frequency direction,and the dominant frequency moves toward the low frequency direction after the square terrains.
Key words: Sag terrain, Explosion seismic wave, Numerical simulation, Peak particle velocity
LI Wan-Tao, ZHAO Kai, XU Cheng-Yan, LI Hong-Gang. Study on the Influence of the Local Sag Terrain on the Propagation of Explosion Seismic Waves[J]. Modern Mining, 2019, 35(09): 56-60.
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