Research on Upper Bound Limit Stability Analysis of Multi-Step High Steep Slope
In order to explore the stability of multi-step high steep slope, this paper considers layer distribution of soil and builds a slope failure mechanism which meets requirements of velocity separation based on plastic mechanics principles, then derives the calculation method of external force power an...
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| Format: | Article |
| Language: | English |
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Hindawi Limited
2023-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2023/4675152 |
| _version_ | 1797822222918746112 |
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| author | Zhen Wang |
| author_facet | Zhen Wang |
| author_sort | Zhen Wang |
| collection | DOAJ |
| description | In order to explore the stability of multi-step high steep slope, this paper considers layer distribution of soil and builds a slope failure mechanism which meets requirements of velocity separation based on plastic mechanics principles, then derives the calculation method of external force power and internal energy dissipation power in failure area using numerical analysis theory, and proposes a loop algorithm for slope stability analysis combining upper bound limit analysis theorem and strength reduction principle. At the same time, in order to enhance the applicability of the upper bound limit analysis method, this paper develops a slope stability calculation system of upper bound limit analysis combined with computer programming technology and evaluates the accuracy of the calculation system through slope engineering practice in open-pit mine. The results show that stability factor by calculation system of upper bound limit analysis is an upper limit solution compared with limit equilibrium method, but the error rate of two methods is less than 5%, which indicates that the slope stability calculation system established in this paper has high accuracy in stability analysis of multi-step high steep slope in the practice of open-pit mine. On the other hand, the most dangerous sliding surface searched by upper bound limit analysis can fully solve velocity problems of multi-step high steep slope failure, so it has stronger reference values in engineering practice. |
| first_indexed | 2024-03-13T10:04:48Z |
| format | Article |
| id | doaj.art-dd2ece84c7cc4c40bd1c0afa83309998 |
| institution | Directory Open Access Journal |
| issn | 1687-8094 |
| language | English |
| last_indexed | 2024-03-13T10:04:48Z |
| publishDate | 2023-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj.art-dd2ece84c7cc4c40bd1c0afa833099982023-05-23T00:00:01ZengHindawi LimitedAdvances in Civil Engineering1687-80942023-01-01202310.1155/2023/4675152Research on Upper Bound Limit Stability Analysis of Multi-Step High Steep SlopeZhen Wang0School of EngineeringIn order to explore the stability of multi-step high steep slope, this paper considers layer distribution of soil and builds a slope failure mechanism which meets requirements of velocity separation based on plastic mechanics principles, then derives the calculation method of external force power and internal energy dissipation power in failure area using numerical analysis theory, and proposes a loop algorithm for slope stability analysis combining upper bound limit analysis theorem and strength reduction principle. At the same time, in order to enhance the applicability of the upper bound limit analysis method, this paper develops a slope stability calculation system of upper bound limit analysis combined with computer programming technology and evaluates the accuracy of the calculation system through slope engineering practice in open-pit mine. The results show that stability factor by calculation system of upper bound limit analysis is an upper limit solution compared with limit equilibrium method, but the error rate of two methods is less than 5%, which indicates that the slope stability calculation system established in this paper has high accuracy in stability analysis of multi-step high steep slope in the practice of open-pit mine. On the other hand, the most dangerous sliding surface searched by upper bound limit analysis can fully solve velocity problems of multi-step high steep slope failure, so it has stronger reference values in engineering practice.http://dx.doi.org/10.1155/2023/4675152 |
| spellingShingle | Zhen Wang Research on Upper Bound Limit Stability Analysis of Multi-Step High Steep Slope Advances in Civil Engineering |
| title | Research on Upper Bound Limit Stability Analysis of Multi-Step High Steep Slope |
| title_full | Research on Upper Bound Limit Stability Analysis of Multi-Step High Steep Slope |
| title_fullStr | Research on Upper Bound Limit Stability Analysis of Multi-Step High Steep Slope |
| title_full_unstemmed | Research on Upper Bound Limit Stability Analysis of Multi-Step High Steep Slope |
| title_short | Research on Upper Bound Limit Stability Analysis of Multi-Step High Steep Slope |
| title_sort | research on upper bound limit stability analysis of multi step high steep slope |
| url | http://dx.doi.org/10.1155/2023/4675152 |
| work_keys_str_mv | AT zhenwang researchonupperboundlimitstabilityanalysisofmultistephighsteepslope |