In this study, the tomography of dynamic stress coefficient (TDSC) was established based on a mechanical model of stress wave propagation in bedding planes and a mathematical model of the stress wave attenuation in rock masses. The reliability of the TDSC was verified by a linear bedding plane model and field monitoring. Generally, the TDSC in the dynamic stress propagation of bedding planes increases with the following conditions: (1) the increase of the normal stiffness of the bedding plane, (2) the increase of the incident angle of the stress wave, (3) the decrease of the incident frequency of the stress wave, or (4) the growth of three ratios (the ratios of rock densities, elastic moduli, and the Poisson’s ratios) of rocks on either side of bedding planes. The additional stress weakens TDSC linearly and slowly during the stress wave propagation in bedding planes, and the weakening effect increases with the growth of the three ratios. Besides, the TDSC decreases exponentially in the rock mass as propagation distance increases. In a field case, the TDSC decreases significantly as vertical and horizontal distances increase and its wave range increases as vertical distance increases in the sedimentary rock layers.

在这项研究中，基于层理面应力波传播的力学模型和岩体中应力波衰减的数学模型，建立了动态​​应力系数层析成像（TDSC）。通过线性层理平面模型和现场监测验证了 TDSC 的可靠性。通常，层理面动态应力传播中的 TDSC 随以下条件而增加：(1) 层理面法向刚度的增加，(2) 应力波入射角的增加，(3)应力波的入射频率降低，或 (4) 层理面两侧岩石的三个比率（岩石密度、弹性模量和泊松比的比率）的增长。附加应力在层理面内应力波传播过程中线性缓慢减弱TDSC，减弱效果随着三个比例的增加而增强。此外，随着传播距离的增加，岩体中的 TDSC 呈指数下降。在现场情况下，TDSC随着垂直和水平距离的增加而显着降低，并且其波幅随着沉积岩层中垂直距离的增加而增加。