Analysis of dynamic factors of debris landslide by means of the model of quantitative theory—using the Xintan landslide, China, as an example |
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Authors: | He Keqiang Yang Jibao Wang Sijing |
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Institution: | (1) Department of Civil Engineering, Qingdao Technological University, Shandong, Qingdao, 266033, China;(2) Shanghai Underground Space Co., Shanghai, 200062, China;(3) Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China |
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Abstract: | If prediction of a debris landslide is to be completed, the first problem is how to determine and correlate the dynamic factors.
The special composition and complicated geological conditions of debris landslides have many dynamic factors influencing displacement
and stability. Correlations are generally very complicated. The relationship and sequence of factors is too complex to be
completed by traditional mathematical model. In order to solve the problem above, a systematical study of the quantitative
and qualitative dynamic factors using a model of the quantitative theory was performed based on the displacements of Xintan
landslide, China. Rainfall was found to be the most important dynamic factor among the six factors controlling displacements.
Relative importance sequence and correlation was also established. All prediction results agree with the mechanism and displacement
pattern of the Xintan landslide. Optimized measures of prevention and control for debris landslides can be completed with
correlation of the dynamic factors by means of the quantitative theory model. |
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Keywords: | Dynamic factor Debris landslide Quantitative theory Mathematical model Prediction China |
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