IMHE OpenIR  > 山地灾害与地表过程重点实验室
胡凯衡1,2; 马超1,2,3
Corresponding Author胡凯衡
Source Publication地球科学与环境学报
Other Abstract

Most of traditional debris flow forecasting methods are based on indirect variables such as antecedent and real-time rainfalls.But the key factor influencing directly the debris flow initiation is soil moisture,which is more reliable for debris flow forecasting.Firstly,the concept of critical soil moisture for debris flow initiation was defined;secondly,based on the experimental and observation data of debris flow initiation at home and abroad,the empirical relationships between critical soil moisture and permeability coefficient,porosity,coefficient of paritcle curvature were obtained by the means of step-wise regression analysis;finally,the forcasting method for debris flow based on critical soil moisture and real-time rainfall was proposed.The method was tested and verified by the debris flow happened at Jiangjiagou of Dongchuan,Yunnan on 16July,1999.The results show that the reliability and accuracy of new forcasting method is better than the traditional forecast method for debris flow based on critical line and occurrence line.

Keyword泥石流 预警 临界土体含水量 孔隙度 渗透系数 曲率系数 降雨
Document Type期刊论文
2.中国科学院水利部 成都山地灾害与环境研究所
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
胡凯衡,马超. 泥石流启动临界土体含水量及其预警应用[J]. 地球科学与环境学报,2014,36(2):73-80.
APA 胡凯衡,&马超.(2014).泥石流启动临界土体含水量及其预警应用.地球科学与环境学报,36(2),73-80.
MLA 胡凯衡,et al."泥石流启动临界土体含水量及其预警应用".地球科学与环境学报 36.2(2014):73-80.
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