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Study on technology of slope/landslide stability analysis and early warning under heavy rainfall

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Authors:Zhu Zhiming; Zhou Kairui; Tan Chunhong; Bian Jingsheng; Wei Yuan; Zou Zuyin
Author Affiliations:Primary:
Sichuan Agricultural University, Urban and Rural Construction College, Chengdu, China
Volume Title:Dizhi Lixue Xuebao Journal of Geomechanics
Source:Dizhi Lixue Xuebao = Journal of Geomechanics, 19(4), p.423-430. Publisher: Institute of Geomechanics, Beijing, China. ISSN: 1006-6616
Publication Date:2013
Note:In Chinese with English summary. 10 refs.; illus.
Summary:Erman Mountain landslide of Hanyuan County as the example, according to the exploration of landslide site conditions and indoor test of soil parameters; Choosing a built-in VBA for development tool to develop the side(slip) slope stability analysis plug-in based on ArcGIS, which makes the study regional risk zoning assessment diagram. Results show that the special topographical condition, geological structure after the earthquake, continuous heavy rains filled water load, slope unsaturated seepage flow, increasing the pore water pressure and rapidly reducing the soil matrix suction, leads to the shear strength decreased of the slope slip plane in the soil and finally landslides. Risk zoning evaluation chart of research area based on ArcGIS and the actual situation of slide have goodness of fit. Research result provides a new way for further analyzing the effect on side slope(slip) and warning under heavy rainfall condition.
Subjects:ArcGIS; Early warning systems; Geographic information systems; Geologic hazards; Hydrology; Information systems; Landslides; Mass movements; Natural hazards; Rainfall; Slope stability; Technology; Warning systems; Asia; China; Far East; Sichuan China; Erman Mountain; Hanyuan China
Coordinates:N293001 N293001 E1023341 E1023341
Record ID:783805-8
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute.
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