摘要
在一个或多个直立速度界面的地质条件下，讨论了折射波的传播路径，推导出折射波的时距方程，给出时距曲线。并与水平层状构造的时距曲线进行比较，指出使用简单观测系统所获得的折射波时距曲线具有多解性，需要采用多重时距曲线观测系统方可实现高分辨率的地质解释。
The propagation path of refraction wave in the presence of one or more vertical velocity interfaces is discussed.Corresponding time-distance equations are derived and the time-distancecurves are presented in comparison with the time-distance curves obtained over a horizontallayered earth.The ambiguity of the interpretation of seismic refraction data obtained by simpleprofile and the need of using combined profile to get high resolution geological interpretation isshown.
关键词
地震勘探
折射波法
时距曲线
直立界面
Seismic survey
refraction wave method
time-distance curve
verticalinterface
ambiguity
