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Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/nhess-2019-230
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-2019-230
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 10 Sep 2019

Submitted as: research article | 10 Sep 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Natural Hazards and Earth System Sciences (NHESS).

A GIS-based three-dimensional landslide generated waves height calculation method

Guo Yu1, Mowen Xie1, Lei Bu1, and Asim Farooq2 Guo Yu et al.
  • 1School of Civil and Resource Engineering, University of Science & Technology Beijing, Beijing 100083, China
  • 2CECOS University, Peshawar Pakistan

Abstract. Combined with the spatial data processing capability of geographic information systems (GIS), a three-dimensional (3D) landslide surge height calculation method is proposed based on grid column units. First, the data related to the landslide are rasterized to form grid columns, and a force analysis model of 3D landslides is established. Combining the vertical strip method with Newton's laws of motion, dynamic equilibrium equations are established to solve for the surge height. Moreover, a 3D landslide surge height calculation expansion module is developed in the GIS environment, and the results are compared with those of the two-dimensional Pan Jiazheng method. Comparisons show that the maximum surge height obtained by the proposed method is 24.6 % larger than that based on the Pan Jiazheng method. Compared with the traditional two-dimensional method, the 3D method proposed in this paper better represents the actual spatial state of the landslide and is more suitable for risk assessment.

Guo Yu et al.
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Guo Yu et al.
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Latest update: 16 Nov 2019
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Short summary
The waves generated by three-dimensional landslide will cause a very large safety accident. This paper proposes a GIS-Based calculation method of waves height generated by three-dimensional landslide for evaluating the hazard of the landslide. Compared with 2D analysis methods, the 3D method proposed in this paper better represents the actual spatial state of landslides. An expansion module is developed to calculate the waves height, and the feasibility of the module is verified by a case study.
The waves generated by three-dimensional landslide will cause a very large safety accident. This...
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