Hazard assessment comparison of Tazhiping landslide before and after treatment using the finite-volume method
Through investigation and analysis of geological conditions and mechanical parameters of the Tazihping landslide, finite-volume method coupling with Voellmy model is used to simulate the landslide mass movement process. The present paper adopts the numerical approach of the RAMMS software progra...
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2017-09-01
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doaj-3243eefb93fe45f0aa9dbbdbbd4564122020-11-24T21:43:42ZengCopernicus PublicationsNatural Hazards and Earth System Sciences1561-86331684-99812017-09-01171611162110.5194/nhess-17-1611-2017Hazard assessment comparison of Tazhiping landslide before and after treatment using the finite-volume methodD. Huang0Y. J. Jiang1J. P. Qiao2M. Wang3Key Laboratory of Mountain Hazards and Surface Processes, Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu 610041, ChinaKey Laboratory of Mountain Hazards and Surface Processes, Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu 610041, ChinaKey Laboratory of Mountain Hazards and Surface Processes, Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu 610041, ChinaKey Laboratory of Mountain Hazards and Surface Processes, Institute of Mountain Hazards and Environment, Chinese Academy of Science, Chengdu 610041, ChinaThrough investigation and analysis of geological conditions and mechanical parameters of the Tazihping landslide, finite-volume method coupling with Voellmy model is used to simulate the landslide mass movement process. The present paper adopts the numerical approach of the RAMMS software program and the GIS platform to simulate the mass movement process before and after engineering treatment. This paper also provides the conditions and characteristic variables of flow-type landslide in terms of flow height, velocity, and stresses. The 3-D division of hazard zones before and after engineering treatment was also mapped. The results indicate that the scope of hazard zones decreased after engineering treatment of the landslide. Compared with the case of before engineering treatment, the extent of high-hazard zones was reduced by about two-thirds, and the characteristic variables of the mass movement in the case of after treatment decreased to one-third of those in the case of before treatment. Despite having engineering treatment, the Tazhiping landslide still poses significant potential threat to the nearby residences. Therefore, it suggests that the houses located in high-hazard zones should be relocated or reinforced for protection.https://www.nat-hazards-earth-syst-sci.net/17/1611/2017/nhess-17-1611-2017.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
D. Huang Y. J. Jiang J. P. Qiao M. Wang |
spellingShingle |
D. Huang Y. J. Jiang J. P. Qiao M. Wang Hazard assessment comparison of Tazhiping landslide before and after treatment using the finite-volume method Natural Hazards and Earth System Sciences |
author_facet |
D. Huang Y. J. Jiang J. P. Qiao M. Wang |
author_sort |
D. Huang |
title |
Hazard assessment comparison of Tazhiping landslide before and after treatment using the finite-volume method |
title_short |
Hazard assessment comparison of Tazhiping landslide before and after treatment using the finite-volume method |
title_full |
Hazard assessment comparison of Tazhiping landslide before and after treatment using the finite-volume method |
title_fullStr |
Hazard assessment comparison of Tazhiping landslide before and after treatment using the finite-volume method |
title_full_unstemmed |
Hazard assessment comparison of Tazhiping landslide before and after treatment using the finite-volume method |
title_sort |
hazard assessment comparison of tazhiping landslide before and after treatment using the finite-volume method |
publisher |
Copernicus Publications |
series |
Natural Hazards and Earth System Sciences |
issn |
1561-8633 1684-9981 |
publishDate |
2017-09-01 |
description |
Through investigation and analysis of geological conditions and mechanical
parameters of the Tazihping
landslide, finite-volume method coupling with Voellmy model is used to
simulate the landslide mass movement process. The present paper adopts the
numerical approach of the RAMMS software program and the GIS platform to
simulate the mass movement process before and after engineering treatment.
This paper also provides the conditions and characteristic variables of
flow-type landslide in terms of flow height, velocity, and stresses. The 3-D
division of hazard zones before and after engineering treatment was also
mapped. The results indicate that the scope of hazard zones decreased after
engineering treatment of the landslide. Compared with the case of before
engineering treatment, the extent of high-hazard zones was reduced by about
two-thirds, and the characteristic variables of the mass movement in the case
of after treatment decreased to one-third of those in the case of before
treatment. Despite having engineering treatment, the Tazhiping landslide still
poses significant potential threat to the nearby residences. Therefore, it
suggests that the houses located in high-hazard zones should be relocated or
reinforced for protection. |
url |
https://www.nat-hazards-earth-syst-sci.net/17/1611/2017/nhess-17-1611-2017.pdf |
work_keys_str_mv |
AT dhuang hazardassessmentcomparisonoftazhipinglandslidebeforeandaftertreatmentusingthefinitevolumemethod AT yjjiang hazardassessmentcomparisonoftazhipinglandslidebeforeandaftertreatmentusingthefinitevolumemethod AT jpqiao hazardassessmentcomparisonoftazhipinglandslidebeforeandaftertreatmentusingthefinitevolumemethod AT mwang hazardassessmentcomparisonoftazhipinglandslidebeforeandaftertreatmentusingthefinitevolumemethod |
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