Mechanism and geo-mechanics models of landslides triggered by 5.12 Wenchuan Earthquake
| Autor: | Junjie Huo, Runqiu Huang, Qiang Xu |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Global and Planetary Change
geography geography.geographical_feature_category Geography Planning and Development Magnitude (mathematics) Geology Landslide Human knowledge Disaster area Rockfall Short duration Mechanism (sociology) Seismology Nature and Landscape Conservation Earth-Surface Processes Gravitational force |
| Zdroj: | Journal of Mountain Science. 8:200-210 |
| ISSN: | 1993-0321 1672-6316 |
| DOI: | 10.1007/s11629-011-2104-9 |
| Popis: | Due to the extremely high magnitude, long duration, and the complicated geo-environment in the disaster area, the great 5.12 Wenchuan Earthquake not only produced a huge number of landslides and rockfalls, but also involved complicated dynamic processes. These processes are quite different from the characteristics of landslides and rockfalls under general gravitational force, and presently human knowledge is very poor in this field. In order to describe the special dynamic processes, some terms such as shattering-cracking, shattering-sliding, shattering-falls and ejection are defined in this paper. Combined with slope structures, a mechanism classification system of strong earthquake-triggered landslide and rockfall is suggested, which is divided into 5 categories and 14 types. This paper also analyzes the basic characteristics, dynamic processes and geo-mechanics conceptual models of some typologies, especial the type of shattering-sliding for most large-scales landsides. This paper initially reveals the formation mechanism, geo-mechanics models and dynamic features of landslides and rockfalls triggered by the great Wenchuan Earthquake. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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