降雨型浅层滑坡危险性预测模型A Model for Predicting Rainfall-Induced Shallow Landslides
孙金山;陈明;左昌群;周传波;陈建平;
摘要(Abstract)：
通过分析SHALSTAB和TRIGRS等浅层滑坡物理确定性模型存在的问题,提出了基于降雨入渗动态守恒的瞬态降雨入渗模型,该模型考虑了初期降雨过程、降雨历程以及饱和非饱和入渗过程,证明了SHALSTAB模型是该模型的特殊形式,并克服了TRIGRS模型参数繁多及一维入渗路径的问题。将无限边坡模型、瞬态降雨入渗模型和GIS进行耦合,研发了可用于大范围降雨型浅层滑坡危险性预测的集成系统,根据边坡的地质条件、地形参数和降雨特征即可对降雨条件下浅层滑坡的危险性进行评估。
关键词(KeyWords)： 降雨;入渗;浅层滑坡;地理信息系统;危险性预测
基金项目(Foundation): 国家自然科学基金项目(50725931;50839004;50909077)
作者(Author): 孙金山;陈明;左昌群;周传波;陈建平;
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DOI:
参考文献(References)：
- [1]张先发,李明华,张小刚.长江上游暴雨与滑坡崩塌关系[J].地理,1995,8(3):102-106.
- [2]Dietrich W E,Montgomery D R.A physically based model forthe topographic control on shallow landsliding[J].Water Re-sources Research,1994,30:1153-1171.
- [3]Pack R T,Tarboton D G,Goodwin C N.The SINMAP ap-proach terrain stability mapping[C]∥Moore D,Hungr O.Proceedings 8th Congress of the International Association ofEngineering Geology.Rotterdam:AA Balkema Publisher,1998:1157-1165.
- [4]Baum R L,Savage W Z,Godt J W.TRIGRS:A Fortran pro-gram for transient rainfall infiltration and grid-based regionalslope stability analysis[R].[S.l.]:U.S.Geological SurveyOpen-File Report 02-0424,2002:35.
- [5]兰恒星,伍法权,周成虎,等.GIS支持下的降雨型滑坡危险性空间分析预测[J].科学通报,2003,48(5):507-512.
- [6]Wu W,Sidle R C.A distributed slope stability model for steepforested watersheds[J].Water Resources Research,1995,31(8):2097-2110.
- [7]Chung C F,Fabbri A G.Prediction models for landslide haz-ard using fuzzy set approach[M]∥Marchetti M,Rivas V.Ge-omorphology and Environmental Impact Assessment.Rotter-dam:AA Balkema Publisher,2001:31-47.
- [8]Binaghi E,Luzi L,Madella P.Slope instability zonation:Acomparison between certainty factor and fuzzy Dempster-Sha-fer approaches[J].Natural Hazards,1998,17:77-97.
- [9]朱伟,陈学东,钟小春.降雨入渗规律的实测与分析[J].岩土力学,2006,27(11):1873-1879.
- [10]钟欣翰.考虑水文模式的地形稳定分析[D].台北:国立中央大学,2007.