[1]GUO Mingzhu,LIANG Zhoujie,WANG Tiancheng,et al.The Calculation Method of Landslide Volume Based on Simplex Integration[J].Journal of Seismological Research,2022,45(03):460-467.[doi:10.20015/j.cnki.ISSN1000-0666.2022.0046
]
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Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
45
Number of periods:
2022 03
Page number:
460-467
Column:
生命线工程系统抗震防灾专栏
Public date:
2022-06-20
- Title:
-
The Calculation Method of Landslide Volume Based on Simplex Integration
- Author(s):
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GUO Mingzhu; LIANG Zhoujie; WANG Tiancheng; LIU Huang
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(Faculty of Architecture,Civil and Transportation Engineering,Beijing University of Technology,Beijing 100084,China)
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- Keywords:
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landslide accumulation body; simplex integral; the Xuelongnang landslide; Qamdo Region
- CLC:
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P642.22
- DOI:
-
10.20015/j.cnki.ISSN1000-0666.2022.0046
- Abstract:
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According to Shi Genhua's simplex integral theory and the Delaunay triangulation theory,we calculated the volume of the Xuelongnang landslide in Suodoxi Village,Mangkang County,Qamdo of Tibet based on the landslide's three-dimensional point coordinates.We firstly fit the three-dimensional coordinates of the key points on the back wall of the landslide,on the perimeter of the landslide,and on the surface of the accumulation body to a curved surface equation,and then we obtained the best fitting sliding surface.Secondly,on the basis of the data of the accumulation body's surface,we obtained the coordinates of the complete accumulation body.Thirdly,we divided the ccumulation body into triangular pyramid by Delaunay triangulation algorithm,and calculated the volume of the cumulation body by the simplex integral method.Finally we compared our results from the simplex integral method with the results from the Geological Survey Report,the traditional geometric method,and the empirical formula method.We found that our results were basically consistent with the survey data,but different from the ones by the traditional geometric method about 27.4%,and different from the ones from empirical formula method about 5.2%~75.3%.This proves that the simplex integral method can be used to calculate the landslide volume.