IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleWavelet identification method for deformation abnormality of landslides
Corresponding Author李秀珍
Source Publication自然灾害学报


Other Abstract

Accurate identification of the deformative evolution stage of landslides,especially the accelerative deformation stage,is very important for seizing landslide precursors and carrying out landslide early warning,forecast and engineering control as quickly as possible. Using the multi-resolution analysis combined with the identification principle of abrupt change points of wavelet analysis method,this paper identified the abrupt change points of the accelerative deformation stages of the landslides based on the accumulative displacement data of the 3 types of typical landslides ( smooth type,step type and oscillation type) . Results show that,there exists significant abrupt amplitude change in the detailed signals of the decomposed and reconstructed accumulative displacements in 4 continuous scales,and the abrupt change features of the 4 scales are in good consistency when the landslides enter the accelerative deformation stages. Therefore,by this characteristic,the wavelet analysis method can identify the abrupt change points at which when landslides enter the accelerative deformation stage correctly.

Keyword滑坡 变形突变点 小波分析方法 识别
Indexed ByCSCD
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Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
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GB/T 7714
李秀珍. 滑坡变形突变异常的小波识别方法[J]. 自然灾害学报,2015,24(6):50-56.
APA 李秀珍.(2015).滑坡变形突变异常的小波识别方法.自然灾害学报,24(6),50-56.
MLA 李秀珍."滑坡变形突变异常的小波识别方法".自然灾害学报 24.6(2015):50-56.
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