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一程序功能本文包括两个独立的程序:“DZ1”,“DZ2”“DZ1”:能对地震折射波曲线用改进To法和时间场法进行解释,改进To法与一般To法的区别在于前者考虑了界面的倾角。“DZ2”:能对地震折射波曲线进行剥皮To法的解释。剥皮To法和表层剥去法的区别在于前者不但把检波点而且把炮点也换算到界面上来,这样真正地剥去了表层。剥皮To法和改进To法一样也考虑了界面的倾角,而且把法线深度换算成垂直深度。因此这二种方法都可以把应用条件扩大到界面倾角>15°的情况。两个程序都能自动绘出时距曲线、界面速度曲线、表层剥去线及经过解释的地层剖面图、还可打印各点的界面标高和界面速度。该程序允许表层速度分段变化或渐变;也可在一次计算后,再次改变平均速度或对时距曲线进行园滑处理,然后再计算。
A program function This paper includes two independent programs: “DZ1”, “DZ2” and “DZ1”: the refraction wave curve can be explained by the modified To method and the time-field method. The difference between the improved To method and the general To method lies in that the former Taking into account the inclination of the interface. “DZ2”: An explanation of To method for skinning refracted wave curves of earthquakes. The difference between the skinned To method and the surface stripping method is that the former is not only the detection point but also the shot point is also converted to the interface, which really stripped the surface. The skinning To method, like that of the To method, also considers the inclination of the interface and converts the normal depth to the vertical depth. Therefore, both methods can be extended to the application of the conditions of the interface angle> 15 ° situation. Both programs automatically plot the time-distance curve, the interface velocity curve, the surface rip-off line and the interpreted formation profile, and also print the interface elevation and interface velocity for each point. The program allows sub-surface velocity changes or gradients; after a calculation, the average velocity can be changed again or the distance curve can be slick-skipped and then recalculated.