ABSTRACT
Loess landslides in China have large scale, large quantity and great harm, which seriously restrict the development of the regional economy and even threaten people’s lives. The occurrence conditions and influencing factors of loess landslides are complex. In the research work of exploration and monitoring, transparent, comprehensive geological and geophysical methods have been more applied and popularized to avoid the limitations of inaccurate and intuitive information of a single method. This paper takes the Shuiwan landslide in Maiji District of Tianshui City as an example, uses the combination of shallow seismic reflection wave method and high-density electrical method of comprehensive geophysical techniques, and uses the method of drilling verification to carry out comprehensive detection on the site. The effectiveness of the fine detection method is studied and combined with drilling data, geospatial data, geological survey data, etc., to build a three-dimensional geological model of landslide mass. The structural characteristics of loess landslides are explained with high accuracy, and the underground geological information of landslide mass is analyzed intuitively. It can provide an effective technical reference for the exploration of loess landslides in China.
