Inverse Analysis of Surrounding Rock Mechanical Parameters Based on LS-SVM

Xiao Long Li; Fu Ming Wang; Yan Hui Zhong; Cheng Chao Guo

doi:10.4028/www.scientific.net/AMR.422.547

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 422Inverse Analysis of Surrounding Rock Mechanical...

Inverse Analysis of Surrounding Rock Mechanical Parameters Based on LS-SVM

Abstract:

Inverse analysis is regarded as an ideal way to achieve the mechanical parameters of rock mass using in situ measured deformation data of surrounding rock during the construction of underground engineering. Aiming at the disadvantage of high computational complexity when identifying mechanical parameters of surrounding rock by employing the inverse method based on standard support vector machine (Vapnik’s SVM), a new back analysis method based on least squares support vector machine (LS-SVM) was presented. The basic principle of the method was introduced. An example was adopted to investigate the practicality and reliability of the method, and the calculation results indicated that, compared with the inversion method based on standard SVM, the method proposed in this paper possesses higher calculation efficiency and inversion precision.

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Periodical:

Advanced Materials Research (Volume 422)

Pages:

547-550

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.422.547

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Online since:

December 2011

Authors:

Xiao Long Li, Fu Ming Wang, Yan Hui Zhong, Cheng Chao Guo

Keywords:

Inverse Analysis, LSSVM, Mechanical Parameters, Surrounding Rock

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References

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