NDLI: Investigation on sensitive warning index of earth dam by use of dimensionality reduction methods

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Investigation on sensitive warning index of earth dam by use of dimensionality reduction methods

Content Provider	Scilit
Author	Fang, Weihua Zhang, Na Jin, Youjie
Copyright Year	2017
Description	Journal: Iop Conference Series: Earth and Environmental Science The main damage cause of homogeneous earth dams is overtopping failure. In order to uncover the overall change rule of measured data when comes to overtopping failure and to establish foundation for earth dam warning indicators, this paper presents a new exact method of homogeneous earth dam overtopping rushed burst data analysis based on KPCA. Sliding window was used to construct the time series of measured data and two indicators were obtained which were the number of principal components and matrix norm of PCA or KPCA based on the 85% contribution rate. In-situ test showed that, Corresponding dam state deteriorated and final burst, these two indicators increased, decreased, and finally increased. Different size of sliding window and norm calculation shows that the two indicators are not sensitive to the window size and type of norm. Therefore, these two indicators can be taken as the first and second level sensitive warning indicators for the earth dam safety condition.
Related Links	http://iopscience.iop.org/article/10.1088/1755-1315/69/1/012148/pdf
ISSN	17551307
e-ISSN	17551315
DOI	10.1088/1755-1315/69/1/012148
Journal	Iop Conference Series: Earth and Environmental Science
Issue Number	1
Volume Number	69
Language	English
Publisher	IOP Publishing
Publisher Date	2017-06-12
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Earth and Environmental Science Geological Engineering Dimensionality Reduction Earth Dam Sensitive Warning Homogeneous Earth Overtopping Failure
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Physics and Astronomy Environmental Science

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