Rock slope reliability analysis using Barton-Bandis failure criterion with modified pseudo-dynamic approach. Issue 139 (December 2020)

• Record Type: Journal Article
• Authors: Zhao, Lianheng; Yu, Chenghao; Li, Liang; An, Aijun; Nie, Zhihong; Peng, Anping; Zuo, Shi
• Is Part Of: Soil dynamics and earthquake engineering. Issue 139(2020)
• Publication Date: 2020-12
• Subjects: Rock slope -- Modified pseudo-dynamic method -- Barton-bandis failure criterion -- System reliability -- Monte Carlo; Soil dynamics -- Periodicals; Earthquake engineering -- Periodicals; Sols -- Dynamique -- Périodiques; Génie parasismique -- Périodiques; 624.176205
• DOI: 10.1016/j.soildyn.2020.106310
• Languages: English
• ISSNs: 0267-7261

Abstract

Abstract: A modified pseudo-dynamic approach was used for a reliability-based stability analysis of plane failure rock slopes. The Barton-Bandis nonlinear failure criterion and the limit equilibrium principle were adopted to account for the nonlinear characteristics of rock joint shear strength and safety factor of slope, respectively. The Monte Carlo simulation method was used to analyze the rock slopes. Comparisons of the present method to a numerical simulation and to a pseudo-static case, were implemented. The influence of different parameters and tension cracks on slope stability was analyzed. Results showed that the stability of the rock slope decreases with increasing rock unit weight, horizontal seismic coefficients and vertical seismic coefficients, and increases with increasing residual friction angle, joint roughness coefficient and joint compressive strength. The location of the tension crack has significant influence on the stability of rock slopes, while the influence of inclination of the tension crack is negligible. Highlights: A dynamic stability reliability evaluation method of a plane faliure jointed rock slope is established. Barton-Bandis Failure criterion and modified pseudo-dynamic approach are adopted. Monte Carlo simulation is used to evaluate the failure probability and system reliability. The comparison between pseudo-static case and present method is implemented. The influence of different parameters and the tension cracks on slope reliability are considered.