State fusion entropy for continuous and site-specific analysis of landslide stability changing regularities
Stability analysis is of great significance to landslide hazard prevention, especially the dynamic stability. However, many existing stability analysis methods are difficult to analyse the continuous landslide stability and its changing regularities in a uniform criterion due to the unique landsl...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2018-04-01
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| Series: | Natural Hazards and Earth System Sciences |
| Online Access: | https://www.nat-hazards-earth-syst-sci.net/18/1187/2018/nhess-18-1187-2018.pdf |
| Summary: | Stability analysis is of great significance to landslide hazard prevention,
especially the dynamic stability. However, many existing stability analysis
methods are difficult to analyse the continuous landslide stability and its
changing regularities in a uniform criterion due to the unique landslide
geological conditions. Based on the relationship between displacement
monitoring data, deformation states and landslide stability, a state fusion
entropy method is herein proposed to derive landslide instability through
a comprehensive multi-attribute entropy analysis of deformation states, which
are defined by a proposed joint clustering
method combining <i>K</i>-means and a cloud model. Taking Xintan landslide as the
detailed case study, cumulative state fusion entropy presents an obvious
increasing trend after the landslide entered accelerative deformation stage
and historical maxima match highly with landslide macroscopic deformation
behaviours in key time nodes. Reasonable results are also obtained in its
application to several other landslides in the Three Gorges Reservoir in
China. Combined with field survey, state fusion entropy may serve for
assessing landslide stability and judging landslide evolutionary stages. |
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| ISSN: | 1561-8633 1684-9981 |