多层介质复杂构造的液体—固体物理模型研究

PHYSICAL MODELLING OF BIPHASED MEDIUM FOR MULTILAYERED COMPLEX STRUCTURE

为了获得中扬子地区典型局部构造的波场特征,本文对MYH构造进行了物理模拟研究。本文论述了MYH构造地质模型特点;物理模型的选材及复杂的液体—固体模型的制作技术;观测方式以及资料处理和分析方法。并就盖层的影响,野外记录中短斜同相轴等问题进行了探讨。指出了以多相位形式出现的侧面波是本区值得特别注意的一种规则于扰。

In order to get the wavefield characteristic of the typical local structure in the middle reach of the Yangzi River area, a physical modelling was parformed for the MYH structure, In this paper,the features of the geological model of MYH structure, the material and technique for data acquisition, data processing as well as data analyzingwere delineated. Effects of overburden, problems of short and oblique events,... were examined. Besides of this.it is pointed out that the multiphased side wave is a regular noise appeared in this area and that special attention should be paid to.