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地下水在受到振动或冲击等瞬态荷重(例如地震)作用时必然要产生波动。本文采用在地下水动力学中惯用的刚性孔隙介质的假定,但视水为可压缩流体,建立了地下水运动的动力方程组,然后用特征线方法求解方程,得出波速及沿程衰减的一般规律。最后通过一系列数值计算。对各种速度脉冲及压力脉冲作用下不同边界透水情况的地下水层中的波传播过程作了具体研究,总结由若干规律,并发现两项有趣的、将来也许会被证明是很重要的现象。
Groundwater must fluctuate when subjected to transient loads such as vibrations or shocks. In this paper, the assumption of a rigid porous medium commonly used in groundwater dynamics is assumed. However, depending on water as a compressible fluid, the dynamic equations of groundwater movement are established. Then, the equation of the groundwater equation is used to solve the equation, and the general laws of the attenuation of wave velocity and along-course are obtained. . Finally through a series of numerical calculations. The wave propagation process in aquifers with different boundary permeable conditions under various speed pulses and pressure pulses was studied in detail, and a number of laws were summarized. Two interesting and future-proven phenomena may prove to be important.