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8399201 
Journal Article 
Coupled Eulerian-Lagrangian Modeling to Study the Long-Runout Landslide: A Case Study 
Feng, SY; Li, HQ; Li, XY; Liu, Y; Chen, Z 
2019 
Springer Science and Business Media B.V. 
242-253 
English 
The coupled Eulerian-Lagrangian (CEL) method is a latest technology for simulating the large deformation and discrete geotechnical problem. In this paper, we use this new method to simulate the long-runout landslide which occurred at the Hong’ao landfill on December 20th, 2015, in Shenzhen, China. This landslide killed 77 people and destroyed 33 houses, regarded as one of the largest landfill landslide in the world. The field survey and previous research results after the accident are applied to validate the numerical model of the landslide. The long-runout behavior of the landslide is studied in terms of runout area, velocity, kinematic energy. The runout area of the simulation landslide is close to that of the actual. The maximum simulated velocity of the landslide is up to 35.41 m/s at 68 s which is close to the result simulated by the LS-RAPID. The maximum kinetic energy of the landslide is 2230.4 GJ at 68 s, and the frontier buildings might be impacted at 78.3 s, when the total energy of the landslide can be 2097.4 GJ, roughly equivalent to the explosive energy of 5 t TNT. © 2019, Springer International Publishing AG, part of Springer Nature. 
Coupled Eulerian-Lagrangian method; Digital elevation model; Landslide; Numerical simulation 
Wang, J.