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Visual simulation of landslide fluidized movement based on smoothed particle hydrodynamics

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Abstract

Earthquake-induced landslides can cause a large number of casualties and great economic loss. Presently, research methods for studying landslides are largely based on a framework of solid mechanics. In this work, visualization software, known as Visual SPH, is developed in Visual Basic 6.0, and can be used to analyze the fluidized movement of landslides based on smoothed particle hydrodynamics (SPH). First, the accuracy of the software is verified through simulating a benchmark problem of a dam-break. Then, fluidized movement analysis of the Tangjiashan landslide is carried out using this software. The simulation derives plots of displacement versus time, reproduces the entire flow process of the Tangjiashan landslide, and determines the run-out, which coincides exactly with the characteristics of flow-like landslides observed in the field. All of these are essential in the design of supporting structures and site selection for reconstruction in earthquake-prone regions.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant Nos. 41072202, 40802070 and 40841014), the Shanghai Municipal Education Commission and Shanghai Education Development Foundation (Shu Guang Project No. 08SG22), the Shanghai Leading Academic Discipline Project (No. B308), and the Kwang-Hua Fund for College of Civil Engineering, Tongji University.

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Authors and Affiliations

  1. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai, 200092, China

    Yu Huang & Zhiyi Chen

  2. Department of Geotechnical Engineering, Tongji University, 200092, Shanghai, China

    Yu Huang, Zili Dai, Weijie Zhang & Zhiyi Chen

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  1. Yu Huang
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  2. Zili Dai
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  3. Weijie Zhang
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Correspondence to Zhiyi Chen.

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Huang, Y., Dai, Z., Zhang, W. et al. Visual simulation of landslide fluidized movement based on smoothed particle hydrodynamics. Nat Hazards 59, 1225–1238 (2011). https://doi.org/10.1007/s11069-011-9859-8

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  • DOI: https://doi.org/10.1007/s11069-011-9859-8

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