摘要
本文以水平三局介质为模型，着重研究初至折射波法中经常遇到的隐伏层和速度侧转层的形成条件及其对反演解释精度的影响。文章列举的葛洲坝和深圳机场的应用研究实例，论证了利用测区的层速度和厚度进行理论计算，有助于定量判断用交点法求有效速度的可行性和反演解释成果的可靠性。
Abstract
Using horizontal three-layer media as the model, this paper deals emphatically with the concealed layer and layer of inverted velocity encountered commonly in the study of first arrival refraction method: their formation condition and their influence on the precision of inversion interpretation. With the applications in Gezhou Dam and Shenzhen Airport as examples, this paper demonstrates that the utilization of the layer velocity and thickness in the survey area to the theoretical calculation helps to the quantitative judgment as to the feasibility of using intersection point method to evaluate effective velocity and the reliability of inversion interpretation of outcomes.
出处
《物探与化探》
CAS
CSCD
1990年第1期16-26,共11页
Geophysical and Geochemical Exploration
