Parametric studies of disturbed rock slope stability based on finite element limit analysis methods

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• 作者：Z.G. Qian^a ; ^{zq@deakin.edu.au" class="auth_mail" title="E-mail the corresponding author} ; A.J. Li^a ; ^{a.li@deakin.edu.au" class="auth_mail" title="E-mail the corresponding author} ; A.V. Lyamin^b ; ^{Andrei.Lyamin@newcastle.edu.au" class="auth_mail" title="E-mail the corresponding author} ; C.C. Wang^c ; ^{ccw@csu.edu.tw" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Damage zone ; Stability number ; Blasting ; Disturbance factor ; Limit analysis
• 刊名：Computers and Geotechnics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：81
• 期：Complete
• 页码：155-166
• 全文大小：2130 K

文摘

This study employs the finite element upper bound and lower bound limit analysis methods to investigate the stability of inhomogeneous rock slopes. The differences in the stability numbers of the upper and lower bound solutions are bracketed within ±10.5% or better, and the stability numbers obtained are presented in rock slope stability charts. These stability charts can provide a convenient tool for preliminary stability designs of inhomogeneous rock slopes. Various recommended blasting damage zones are considered, and disturbance factors are used to represent damage levels. Results showed that rock mass disturbance could significantly influence the evaluation of rock slope stability.