Calculation for Permanent Displacement of Single Slip Surface of Multi-Stage Loess Slope Based on Energy Method
At present, there are still some gaps in the theoretical calculation of the permanent displacement of the multi-stage loess slope under the action of earthquake. Therefore, this paper firstly uses the GEO-Studio finite element software to explore the influence of the comprehensive slope rate on the...
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MDPI AG
2022-08-01
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| Online Access: | https://www.mdpi.com/2076-3417/12/17/8426 |
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| author | Xiaobing Zhang Xin Zhang Shuaihua Ye |
| author_facet | Xiaobing Zhang Xin Zhang Shuaihua Ye |
| author_sort | Xiaobing Zhang |
| collection | DOAJ |
| description | At present, there are still some gaps in the theoretical calculation of the permanent displacement of the multi-stage loess slope under the action of earthquake. Therefore, this paper firstly uses the GEO-Studio finite element software to explore the influence of the comprehensive slope rate on the permanent displacement when the slope rate of each grade of multi-stage loess slope changes and the stage of multi-stage slope changes. The results show that it is feasible to use the comprehensive slope rate to calculate the permanent displacement of the sliding body of the multi-stage loess slope under the action of earthquake. On the basis of this conclusion, in order to simplify the calculation of permanent displacement of potential sliding soil, the other geometric parameters of the multi-stage loess slope are replaced by the comprehensive slope rate, combined with the Newmark slider displacement analysis method and energy conservation principle, and then the calculation method of permanent displacement of potential sliding soil of multi-stage loess slope under the action of earthquake is deduced. Through an example, the permanent displacement calculated by the proposed algorithm are compared with those calculated by the PLAXIS 3D software and GEO-Studio software. The results show that the permanent displacement calculated by this method is close to that calculated by the GEO-Studio software, and the difference is only 2%, and thus, the rationality of the proposed method for calculating the permanent displacement of the multi-stage loess slope under the action of earthquake is verified. The algorithm proposed in this paper provides a theoretical reference for the calculation of the permanent displacement of multi-stage loess slope under the action of earthquake. |
| first_indexed | 2024-03-10T03:05:24Z |
| format | Article |
| id | doaj.art-2ab4e9ec909d4d468140d6b82b337133 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T03:05:24Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-2ab4e9ec909d4d468140d6b82b3371332023-11-23T12:39:20ZengMDPI AGApplied Sciences2076-34172022-08-011217842610.3390/app12178426Calculation for Permanent Displacement of Single Slip Surface of Multi-Stage Loess Slope Based on Energy MethodXiaobing Zhang0Xin Zhang1Shuaihua Ye2School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Civil Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaAt present, there are still some gaps in the theoretical calculation of the permanent displacement of the multi-stage loess slope under the action of earthquake. Therefore, this paper firstly uses the GEO-Studio finite element software to explore the influence of the comprehensive slope rate on the permanent displacement when the slope rate of each grade of multi-stage loess slope changes and the stage of multi-stage slope changes. The results show that it is feasible to use the comprehensive slope rate to calculate the permanent displacement of the sliding body of the multi-stage loess slope under the action of earthquake. On the basis of this conclusion, in order to simplify the calculation of permanent displacement of potential sliding soil, the other geometric parameters of the multi-stage loess slope are replaced by the comprehensive slope rate, combined with the Newmark slider displacement analysis method and energy conservation principle, and then the calculation method of permanent displacement of potential sliding soil of multi-stage loess slope under the action of earthquake is deduced. Through an example, the permanent displacement calculated by the proposed algorithm are compared with those calculated by the PLAXIS 3D software and GEO-Studio software. The results show that the permanent displacement calculated by this method is close to that calculated by the GEO-Studio software, and the difference is only 2%, and thus, the rationality of the proposed method for calculating the permanent displacement of the multi-stage loess slope under the action of earthquake is verified. The algorithm proposed in this paper provides a theoretical reference for the calculation of the permanent displacement of multi-stage loess slope under the action of earthquake.https://www.mdpi.com/2076-3417/12/17/8426energy methodmulti-stage loess slopesingle slip surfacepermanent displacementcalculation method |
| spellingShingle | Xiaobing Zhang Xin Zhang Shuaihua Ye Calculation for Permanent Displacement of Single Slip Surface of Multi-Stage Loess Slope Based on Energy Method Applied Sciences energy method multi-stage loess slope single slip surface permanent displacement calculation method |
| title | Calculation for Permanent Displacement of Single Slip Surface of Multi-Stage Loess Slope Based on Energy Method |
| title_full | Calculation for Permanent Displacement of Single Slip Surface of Multi-Stage Loess Slope Based on Energy Method |
| title_fullStr | Calculation for Permanent Displacement of Single Slip Surface of Multi-Stage Loess Slope Based on Energy Method |
| title_full_unstemmed | Calculation for Permanent Displacement of Single Slip Surface of Multi-Stage Loess Slope Based on Energy Method |
| title_short | Calculation for Permanent Displacement of Single Slip Surface of Multi-Stage Loess Slope Based on Energy Method |
| title_sort | calculation for permanent displacement of single slip surface of multi stage loess slope based on energy method |
| topic | energy method multi-stage loess slope single slip surface permanent displacement calculation method |
| url | https://www.mdpi.com/2076-3417/12/17/8426 |
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