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A successful case of emergency landslide response - the Sept. 2, 2014, Shanshucao landslide, Three Gorges Reservoir, China
Abstract Background The Shanshucao landslide is a bedding landslide in the Three Gorges Reservoir. This landslide had not been subject to obvious deformation in the past, nor had it been included in the list of geologic hazards previously identified in the Three Gorges Reservoir. Findings The Shanshucao slope failed at 13:19 p.m. on Sep. 2, 2014, during which the northern soil mass slid rotationally on a plane under traction produced by the rocky bedding landslide to the south. The Daling Hydropower Station was situated on the Shanshucao landslide, and power generation pipelines feeding the station began leaking four hours before the incident. Heavy rainfall, fluctuation of water level in the reservoir, and leakage of tunnel pipelines caused a sharp increase of hydraulic uplift pressure within the slope. This was the key trigger of the incident. Conclusion Before the incident, members of the public reported timely clues on slope deformation, and landslide specialists and governmental officials made prompt collaborative decisions that contributed to a successful emergency evacuation of the landslide site. As a consequence, all residents living on the slope evacuated successfully before the occurred. This successful case of emergency landslide evacuation provides guidance for dealing with unexpected geologic hazards in the Three Gorges Reservoir, and in other disaster-prone regions world-wide.
A successful case of emergency landslide response - the Sept. 2, 2014, Shanshucao landslide, Three Gorges Reservoir, China
Abstract Background The Shanshucao landslide is a bedding landslide in the Three Gorges Reservoir. This landslide had not been subject to obvious deformation in the past, nor had it been included in the list of geologic hazards previously identified in the Three Gorges Reservoir. Findings The Shanshucao slope failed at 13:19 p.m. on Sep. 2, 2014, during which the northern soil mass slid rotationally on a plane under traction produced by the rocky bedding landslide to the south. The Daling Hydropower Station was situated on the Shanshucao landslide, and power generation pipelines feeding the station began leaking four hours before the incident. Heavy rainfall, fluctuation of water level in the reservoir, and leakage of tunnel pipelines caused a sharp increase of hydraulic uplift pressure within the slope. This was the key trigger of the incident. Conclusion Before the incident, members of the public reported timely clues on slope deformation, and landslide specialists and governmental officials made prompt collaborative decisions that contributed to a successful emergency evacuation of the landslide site. As a consequence, all residents living on the slope evacuated successfully before the occurred. This successful case of emergency landslide evacuation provides guidance for dealing with unexpected geologic hazards in the Three Gorges Reservoir, and in other disaster-prone regions world-wide.
A successful case of emergency landslide response - the Sept. 2, 2014, Shanshucao landslide, Three Gorges Reservoir, China
Huang, Bolin (author) / Zheng, Wangjun (author) / Yu, Zuzhan (author) / Liu, Guangning (author)
Geoenvironmental Disasters ; 2 ; 1-9
2015-07-28
9 pages
Article (Journal)
Electronic Resource
English
The 2 September 2014 Shanshucao landslide, Three Gorges Reservoir, China
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