斜坡失稳的降雨阈值模型及其应用

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (400 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to realize visual analysis and prediction of slope stability，a worksite slope in Shuangbai，Chuxiong is investigated. Based on digital elevation model(DEM)，combining the factors such as rainfall，topography and geomorphology，and soil characteristics，the threshold rainfall for deformation and instability of the slope unit is calculated by the rainfall threshold model. And the effects of rainfall infiltration and gradient on slope stability are analyzed. Comparing the results between the model prediction and the actual monitoring of slope stability，it is shown that the rainfall threshold model can simulate well the needful rainfall which can induce the instability of slope in each unit. The unit of slope may be instable when the rainfall is larger than the rainfall threshold of slope. The simulation result fits the real slope instability cases very well.

Key words： slope engineering rainfall threshold rainfall-induced landslides digital elevation model landslide distribution prediction

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

http://www.rockmech.org/EN/Y2012/V31/I7/1484

[1]	李峰，郭院成. 降雨入渗对边坡稳定性作用机制分析[J]. 人民黄河，2007，29(6)：44-48.(LI Feng，GUO Yuancheng. Rainfall infiltration on slope stability mechanism analysis[J]. Yellow River，2007，29(6)：44-48.(in Chinese)) " target="_blank">
[2]	CAINE N. The rainfall intensity-duration control of shallow landslides and debris flows[J]. Geografiska Annaler，1980，62 (1/2)：23-27. " target="_blank">
[3]	CAMPBELL R H. Soil slips，debris flows，and rainstorms in the Santa Monica Mountains and vicinity，southern California[M]. Washington，D.C.：United States. Government Printing Office，1975. " target="_blank">
[4]	CHANG K T，CHIANG S H，FENG L. Analyzing the relationship between typhoon triggered landslides and critical rainfall conditions[J]. Earth Surface Processes and Landforms，2008，33(8)：1 261-1 271. " target="_blank">
[5]	CARRAR A，CROSTA G，FRATTINI P. Comparing models of debris-flow susceptibility in the alpine environment[J]. Geomorphology，2008，94(3/4)：353-378. " target="_blank">
[7]	DAI F C，LEE C F. A spatiotemporal probabilistic modelling of storm-induced shallow landsliding using aerial photographs and logistic regression[J]. Earth Surface Processes and Landforms，2003，28(5)：527-545. " target="_blank">
[9]	YESILNACAR E，TOPAL T. Landslide susceptibility mapping：a comparison of logistic regression and neural networks methods in a medium scale study，Hendek region(Turkey)[J]. Engineering Geology，2005，79(3/4)：251-266. " target="_blank">
[12]	MEISINA C，SCARABELLI S. A comparative analysis of terrain stability models for predicting shallow landslides in colluvial soils[J]. Geomorphology，2007，87(3)：207-223.
[15]	何玉琼，徐则民，王志奇，等. 基于GIS的耦合模型在斜坡稳定分析中的应用[J]. 武汉理工大学学报，2011，33(2)：100-104.(HE Yuqiong，XU Zemin，WANG Zhiqi，et al. The coupling model based on GIS in the slope stability analysis of application[J]. Journal of Wuhan University of Technology，2011，33(2)：100-104.(in Chinese)) " target="_blank">
[18]	CLAESSENS L，KNAPEN A，KITUTU M G，et al. Modelling landslide hazard，soil redistribution and sediment yield of landslides on the Ugandan footslopes of Mount Elgon[J]. Geomorphology，2007，90(1/2)：23-35. " target="_blank">
[10]	CHANG K T，CHIANG S H，HSU M L. Modeling typhoon- and earthquake-induced landslides in a mountainous watershed using logistic regression[J]. Geomorphology，2007，89(3/4)：335-347. " target="_blank">
[13]	LEGORRETA P G，BURSIK M L. A tool for multimethod，multiple soil layers slope stability analysis[J]. Computers and Geosciences，2009，35(5)：1 007-1 016. " target="_blank">
[16]	CHANG K T，CHIANG S H. An integrated model for predicting rainfall-induced landslides[J]. Geomorphology，2009，105(3/4)：366-373. " target="_blank">
[19]	MONTGOMERY D R，SULLIVAN K，GREENBERG H M. Regional test of a model for shallow landsliding[J]. Hydrological Process，1998，12(6)：943-955. " target="_blank">
[6]	GORSEVSKI P V，GESSLER P E，BOLL J，et al. Spatial and temporally distributed modeling of landslide susceptibility[J]. Geomorphology，2006 ，80(3/4)：178-198. " target="_blank">
[8]	CAN T，NEFESLIOGLU H A，GOKCEOGLU C，et al. Susceptibility assessments of shallow earth flows triggered by heavy rainfall at three catchments by logistic regression analyses[J]. Geomorphology，2005，72(1/4)：250-271. " target="_blank">
[11]	MONTGOMERY D R，DIETRICH W E. A physically-based model for the topographic control on shallow landsliding[J]. Water Resources Research，1994，30(4)：1 153-1 171. " target="_blank">
[14]	PACK R T，TARBOTON D G，GOODWIN C N. The SINMAP approach to terrain stability mapping[C]// Proceedings of 8th Congress of the International Association of Engineering Geology，Canada：[s. n.]，1998：1 157-1 165. " target="_blank">
[17]	CHIANG S H，CHANG K T. Application of radar data to modeling rainfall-induced landslides[J]. Geomorphology，2009，103(3)：299-309. " target="_blank">