Abstract
This paper describes a recent landslide event, which occurred at Liucheng village in Tianquan County, Sichuan Province, China, on July 15, 2018. The Laochang landslide described in this research is an outstanding and valuable reference for understanding the characteristics of such kind of landslides that are geologically similar to the landslide. The deformation characteristics of the landslide are investigated based on field investigations, drilled boreholes, and exploratory trenches. The 225 residents of 64 households living on the flat platform were threatened by the landslide. Therefore, to guarantee the safety of human life and property becomes the primary emergency task. The anti-sliding piles were taken to stabilize the landslide and mitigate impacts caused by the landslide. Based on the analysis of the monitoring data, the effectiveness of anti-sliding piles is evaluated. The results indicate that the anti-sliding piles are effective in increasing the stability of the landslide, and this work can provide a reference for similar slope engineering projects.
Highlights
Landslides represent a common geohazard in many parts of the world and became a major concern to national and local a uthorities[1,2]
Land shortage for agriculture and construction has become a thorny problem in Southwest China, and some buildings have to be erected in the proximity of or within the landslide bodies
A typical case study from the Laochang landslide located in the eastern sector of Tianquan County is presented
Summary
Landslides represent a common geohazard in many parts of the world and became a major concern to national and local a uthorities[1,2]. When the safety factor (Fs) is 1 (limit equilibrium state of slope stability) for back-calculation, the strength parameters of the slide zone soil can be calculated using the following equations: Fs C= The Fs of the slip surface using the transfer coefficient method is calculated according to the following equations: n−1 n−1 (((Wi((1 − rU ) cos αi − A sin αi) − RDi ) tan φi + CiLi) ψj) + Rn i=1
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