Study on the mechanism of Xiajiang Hydraulic Project landslide reactivation based on long-term in situ monitoring techniques. Issue 4 (October 2021)

• Record Type: Journal Article
• Authors: Wan, Diwen; Ding, Yutang; Lu, Yangyang; Jiang, Xiaozhen; Xiong, Guowen
• Is Part Of: IOP conference series. Volume 861:Issue 4(2021)
• Publication Date: 2021-10
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/861/4/042046
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: Landslide reactivation is a progressive process that takes a long time and is influenced by various factors. Studies that focus on short periods or limited factors may fall short of revealing the complicated reactivation mechanism. In this study, the mechanism of Xiajiang Hydraulic Project landslide reactivation is investigated using long-term in situ monitoring techniques. The slope's long-term reactions were monitored using different sensors installed since the initial landslide. The reactivation process is analyzed based on the obtained monitoring data, revealing the reactivation mechanism. The results show the following: (1) Heavy rainfall and poor drainage conditions are direct trigger factors for landslide reactivation. (2) The reactivation process is promoted by multiple factors such as the slope deformation, rainfall infiltration, and the strength of geomaterials, which are mutually coupled. Further, suggestions are proposed to improve safety management based on the aforementioned results.