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Landslides

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The September 16, 2017, Linjiabang landslide in Wanyuan County, China: preliminary investigation and emergency mitigation

  • Zhuo Chen
  • Danqing SongEmail author
  • Chao Hu
  • Yutian Ke
Recent Landslides
  • 108 Downloads

Abstract

This paper reports on a typical slow-moving landslide that occurred in Shuitianba village in Wanyuan County, Sichuan Province, China, on September 16, 2017. The landslide in Wanyuan County is regionally outstanding for its features and well-developed landslide morphology. Hence, this event can provide a good case study for understanding the possible triggering conditions of the occurrences of all the landslides examined in Wanyuan County. The 225 residents of Shuitianba village did not flee the village because the deformation of the landslide was extremely slow. However, the primary emergency tasks are still necessary to reduce the landslide risk that may affect the residents. Detailed field investigations, boreholes, and exploratory trenches were performed to investigate the characteristics and triggering factors of this landslide. Rainfall and anthropogenic activities (such as informal, unplanned settlements and deforestation) were revealed to be the main triggering factors. The main engineering control measures, including anti-sliding piles, an anti-sliding retaining wall, and intercepting ditch, were applied to stabilize the landslide. However, landslide mitigation measures have not been finished, and hence, some interim measures are suggested to effectively reduce landslide risk.

Keywords

Landslide Landslide features Emergency mitigation Wanyuan County China 

Notes

Funding information

This study was supported by the National Nature Science Foundation of China (No. 41702311, 41601422).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.State Key Laboratory of Hydraulic and Mountain River Engineering, College of Water Resource and HydropowerSichuan UniversityChengduChina
  2. 2.Department of Hydraulic Engineering, State Key Laboratory of Hydroscience and EngineeringTsinghua UniversityBeijingChina
  3. 3.GEOPS, Univ. Paris-Sud, CNRSUniversité Paris-SaclayOrsayFrance

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