Stability Charts for Pseudostatic Stability Analysis of Rock Slopes Using the Nonlinear Hoek–Brown Strength Reduction Technique
This paper presents a set of stability charts for the stability assessment of rock slopes that satisfy the Hoek–Brown (HB) criterion under various seismic loading conditions. The nonlinear Hoek–Brown strength reduction technique is used to conduct pseudostatic stability analysis of rock slopes subje...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8841090 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849402899883360256 |
|---|---|
| author | Chaowei Sun Junrui Chai Tao Luo Zengguang Xu Yuan Qin Xiaosa Yuan Bin Ma |
| author_facet | Chaowei Sun Junrui Chai Tao Luo Zengguang Xu Yuan Qin Xiaosa Yuan Bin Ma |
| author_sort | Chaowei Sun |
| collection | DOAJ |
| description | This paper presents a set of stability charts for the stability assessment of rock slopes that satisfy the Hoek–Brown (HB) criterion under various seismic loading conditions. The nonlinear Hoek–Brown strength reduction technique is used to conduct pseudostatic stability analysis of rock slopes subjected to horizontal seismic excitation. Based on an extensive parametric study, first, a set of stability charts with a slope angle of β = 45° under static and pseudostatic conditions are proposed by using ABAQUS 6.10 software. Second, the slope angle weighting factor (fβ) and the seismic weighting factor (fkh) are adopted to characterize the influence of slope angle (β) and horizontal seismic acceleration coefficient (kh) on the rock slope stability. Finally, the reliability of the proposed charts was validated by three typical examples and two case studies, and the results show that the values of the factor of safety (FOS) obtained from the proposed charts are consistent with the values from other methods. The proposed charts provide an efficient and convenient way to determine the FOS of rock slopes directly from the rock mass properties (γ and σci), the HB parameters (mi and GSI), the slope geometry (H and β), and the horizontal seismic coefficients (kh). |
| format | Article |
| id | doaj-art-947c9688d5be4470955c9f659ff1f6f7 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-947c9688d5be4470955c9f659ff1f6f72025-08-20T03:37:24ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88410908841090Stability Charts for Pseudostatic Stability Analysis of Rock Slopes Using the Nonlinear Hoek–Brown Strength Reduction TechniqueChaowei Sun0Junrui Chai1Tao Luo2Zengguang Xu3Yuan Qin4Xiaosa Yuan5Bin Ma6Shaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an 710123, ChinaShaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an 710123, ChinaState Key Laboratory Base of Ecohydraulics Engineering in Northwest Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaState Key Laboratory Base of Ecohydraulics Engineering in Northwest Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaState Key Laboratory Base of Ecohydraulics Engineering in Northwest Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaShaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an 710123, ChinaShaanxi Key Laboratory of Safety and Durability of Concrete Structures, Xijing University, Xi’an 710123, ChinaThis paper presents a set of stability charts for the stability assessment of rock slopes that satisfy the Hoek–Brown (HB) criterion under various seismic loading conditions. The nonlinear Hoek–Brown strength reduction technique is used to conduct pseudostatic stability analysis of rock slopes subjected to horizontal seismic excitation. Based on an extensive parametric study, first, a set of stability charts with a slope angle of β = 45° under static and pseudostatic conditions are proposed by using ABAQUS 6.10 software. Second, the slope angle weighting factor (fβ) and the seismic weighting factor (fkh) are adopted to characterize the influence of slope angle (β) and horizontal seismic acceleration coefficient (kh) on the rock slope stability. Finally, the reliability of the proposed charts was validated by three typical examples and two case studies, and the results show that the values of the factor of safety (FOS) obtained from the proposed charts are consistent with the values from other methods. The proposed charts provide an efficient and convenient way to determine the FOS of rock slopes directly from the rock mass properties (γ and σci), the HB parameters (mi and GSI), the slope geometry (H and β), and the horizontal seismic coefficients (kh).http://dx.doi.org/10.1155/2020/8841090 |
| spellingShingle | Chaowei Sun Junrui Chai Tao Luo Zengguang Xu Yuan Qin Xiaosa Yuan Bin Ma Stability Charts for Pseudostatic Stability Analysis of Rock Slopes Using the Nonlinear Hoek–Brown Strength Reduction Technique Advances in Civil Engineering |
| title | Stability Charts for Pseudostatic Stability Analysis of Rock Slopes Using the Nonlinear Hoek–Brown Strength Reduction Technique |
| title_full | Stability Charts for Pseudostatic Stability Analysis of Rock Slopes Using the Nonlinear Hoek–Brown Strength Reduction Technique |
| title_fullStr | Stability Charts for Pseudostatic Stability Analysis of Rock Slopes Using the Nonlinear Hoek–Brown Strength Reduction Technique |
| title_full_unstemmed | Stability Charts for Pseudostatic Stability Analysis of Rock Slopes Using the Nonlinear Hoek–Brown Strength Reduction Technique |
| title_short | Stability Charts for Pseudostatic Stability Analysis of Rock Slopes Using the Nonlinear Hoek–Brown Strength Reduction Technique |
| title_sort | stability charts for pseudostatic stability analysis of rock slopes using the nonlinear hoek brown strength reduction technique |
| url | http://dx.doi.org/10.1155/2020/8841090 |
| work_keys_str_mv | AT chaoweisun stabilitychartsforpseudostaticstabilityanalysisofrockslopesusingthenonlinearhoekbrownstrengthreductiontechnique AT junruichai stabilitychartsforpseudostaticstabilityanalysisofrockslopesusingthenonlinearhoekbrownstrengthreductiontechnique AT taoluo stabilitychartsforpseudostaticstabilityanalysisofrockslopesusingthenonlinearhoekbrownstrengthreductiontechnique AT zengguangxu stabilitychartsforpseudostaticstabilityanalysisofrockslopesusingthenonlinearhoekbrownstrengthreductiontechnique AT yuanqin stabilitychartsforpseudostaticstabilityanalysisofrockslopesusingthenonlinearhoekbrownstrengthreductiontechnique AT xiaosayuan stabilitychartsforpseudostaticstabilityanalysisofrockslopesusingthenonlinearhoekbrownstrengthreductiontechnique AT binma stabilitychartsforpseudostaticstabilityanalysisofrockslopesusingthenonlinearhoekbrownstrengthreductiontechnique |