折射法和高密度电法在古滑坡勘探中的应用

摘要

古滑坡体地球物理调查方法技术的选择对勘探效果至关重要。以吉林省通化市拟建集安-通化高速公路滑坡体为例，采用折射波法和高密度电法，利用二维反演技术进行数据处理。结合地质信息，确定了滑坡体的形态及厚度变化，厚度最大约20 m，滑坡性质为堆积层滑坡。研究结果表明折射波法和高密度电法进行古滑坡勘探，效果较好。%The selection of the ancient landslide geophysical survey methods is very important for the explora -tion in effect .Taking the study of the landslide in Ji'an-Tonghua highway of Jilin Province as an example , based on highdensity electrical method and refraction method , the data were processed by 2 D inversion technique .In combination with the geological information , the morphology and thickness for the landslide are determined , which thickness is about 20 m, and the landslide belongs to the accumulated layer landslide in nature .The study result shows that the high density electrical method and refraction method are feasible and economical cost to ascertain the slide surface position and landslide range .