Preprints
https://doi.org/10.5194/nhessd-3-2537-2015
https://doi.org/10.5194/nhessd-3-2537-2015
15 Apr 2015
 | 15 Apr 2015
Status: this preprint was under review for the journal NHESS but the revision was not accepted.

Movement of the Donglingxin landslide, China, induced by reservoir inundation and rainfall

J. Yu, R. B. Wang, W. Y. Xu, L. Yan, J. C. Zhang, and Q. X. Meng

Abstract. With numerous high mountains, deep valleys and turbulent rivers, many hydropower plants have been constructed in the south-west China. Reservoir bank slopes are very common in this area, these slopes are widespread and quite often involved in deformation that can result in serious damage and casualties. In case of the Donglingxin landslide, for an in-depth study of processes that can trigger these events, the deformation characteristics and the failure mechanisms of the slope were performed on a detail scale, based on an intensive monitoring of rainfall events, reservoir level fluctuation and groundwater movement. The deformation of the upper part of slope is mainly induced by rainfall events, reservoir level fluctuation affects the deformation of the lower part of slope. The increase of pore water pressure may result in the failure of slope. The filed investigation suggest that the slope is unstable. Drainages is the only stabilization measure which can be implemented, due to very complex geological and geomorphology condition.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
J. Yu, R. B. Wang, W. Y. Xu, L. Yan, J. C. Zhang, and Q. X. Meng
 
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Status: closed
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
J. Yu, R. B. Wang, W. Y. Xu, L. Yan, J. C. Zhang, and Q. X. Meng
J. Yu, R. B. Wang, W. Y. Xu, L. Yan, J. C. Zhang, and Q. X. Meng

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Short summary
In case of the Donglingxin landslide, for an in-depth study of processes that can trigger these events, the deformation characteristics and the failure mechanisms of the slope were performed on a detail scale, based on an intensive monitoring of rainfall events, reservoir level fluctuation and groundwater movement. The deformation of the upper part of slope is mainly induced by rainfall events, reservoir level fluctuation affects the deformation of the lower part of slope.
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