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为更好的研究在浅埋地下爆炸作用下岩土体中出现的波动过程,将爆炸力学、弹性力学和高等数学的基本理论知识进行有效结合,建立了浅埋爆炸作用下,地震波在半无限介质自由表面运动的计算模型,并用Matlab编程计算爆炸地震波的水平和垂直位移.结果表明:震源同一埋深时,随着地震波传播距离的增加,水平方向和垂直方向的位移均减小,但垂直方向位移比水平方向位移衰减的快;震源在不同埋深时,爆破震源埋深的增加,水平方向的位移和垂直方向的位移也均减小.Matlab编程计算结果是正确的符合实际爆破工程中地震波在岩体介质中的传播规律.
In order to better study the fluctuation process in rock and soil under the action of shallow underground explosion, the combination of explosion mechanics, elasticity mechanics and basic theoretical knowledge of advanced mathematics is effectively combined. Under the action of shallow-buried explosion, The calculation model of the free surface movement of the medium is calculated and the horizontal and vertical displacements of the blasting seismic wave are calculated by Matlab program.The results show that the horizontal and vertical displacements decrease with the increase of the seismic wave propagation distance at the same depth of the earthquake source, The displacement in direction is faster than the displacement in horizontal direction. When the depth of source is different, the buried depth of blast source increases, the displacement in horizontal direction and the displacement in vertical direction also decrease.Matlab programming calculation results are correct in line with the actual blasting project Seismic Wave Propagation Law in Rock Mass.