Study on the Cause Analysis and Trend Prediction of Typical Landslide Disasters in Pukou District

Wei Shi; Fuzhao Feng

doi:10.54097/5atxvn13

Authors

Wei Shi
Fuzhao Feng

DOI:

https://doi.org/10.54097/5atxvn13

Keywords:

Soil-rock binary structure; Landslide; Failure mode; Rainfall; Trend prediction.

Abstract

This paper takes the typical soil-rock binary structure landslide on the east side of the middle section of Yanshan Avenue in Pukou District as the research object. Through field investigation, geological surveying and mapping, Lidar scanning, drilling, rainfall and deformation monitoring data analysis and other means, the basic characteristics of the landslide and the factors affecting the stability of the landslide are analyzed. It is found that the expansibility of kaolin and the floating support force of temporary confined water are one of the factors affecting the stability of the slope. Through real-time monitoring to explore the relationship between rainfall and surface horizontal displacement and vertical displacement, it is found that the surface deformation is greatly affected by the season. When the rainfall is large, the impact of temporary confined water has a large time lag. The faster the speed to reach the saturated state, the shorter the lag time, and vice versa. On this basis, the relationship model between landslide and rainfall is established, and the development trend of landslide is predicted.

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