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Titel |
The 13 August 2010 catastrophic debris flows after the 2008 Wenchuan earthquake, China |
VerfasserIn |
Q. Xu, S. Zhang, W. L. Li, Th. W. J. Asch |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1561-8633
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Digitales Dokument |
URL |
Erschienen |
In: Natural Hazards and Earth System Science ; 12, no. 1 ; Nr. 12, no. 1 (2012-01-19), S.201-216 |
Datensatznummer |
250010417
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Publikation (Nr.) |
copernicus.org/nhess-12-201-2012.pdf |
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Zusammenfassung |
From 12 to 14 August 2010, heavy rainstorms occurred in
the Sichuan province in SW China in areas which were affected by the 2008
Wenchuan Earthquake, inducing catastrophic debris flows. This disaster is
named as "the 8.13 debris flows". The results of the research presented in
this paper show that the 8.13 debris flows are characterized by a
simultaneous occurrence, rapid-onsets, destructive impacts, and disaster
chain effects. They are located along the seismic fault, because the source
materials mainly originate from loose deposits of landslides which were
triggered by the Wenchuan Earthquake. The presence of large amounts of these
loose materials on the slopes and the development of high intensity rainfall
events are the main causes for the formation of these debris flows. The
study of the 8.13 debris flows can provide a benchmark for the analysis of
the long-term evolution of these debris flows in order to make proper
engineering decisions. A flexible drainage system is proposed in this paper
as a preventive measure to mitigate the increasing activity of these debris
flows in the earthquake-affected area. |
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