Analysis of Gravel Migration Patterns During Vibration Rolling and Their Impact on GCL Performance Based on DEM
In this study, a multilayer composite rolling model consisting of a rolling wheel, a protective layer, a GCL, and a support layer was constructed by the discrete element method (DEM). Soil compaction and gravel migration, and their effects on the GCL, were analyzed from a fine viewpoint, and three k...
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MDPI AG
2024-11-01
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| author | Hu Huang Feihao Chen Qingming Qiu Ruihang Li Lixia Guo |
| author_facet | Hu Huang Feihao Chen Qingming Qiu Ruihang Li Lixia Guo |
| author_sort | Hu Huang |
| collection | DOAJ |
| description | In this study, a multilayer composite rolling model consisting of a rolling wheel, a protective layer, a GCL, and a support layer was constructed by the discrete element method (DEM). Soil compaction and gravel migration, and their effects on the GCL, were analyzed from a fine viewpoint, and three key indexes for the safety assessment of the GCL were proposed: local elongation, gravel embedment value, and bentonite allotment number. The results show that the soil porosity and cumulative settlement do not decrease all the time with the number of rolling passes, and there exists an optimal number of rolling passes during the rolling process; the protective layer of gravel soil moves more frequently than the support layer; and the nearly rectangular and nearly elliptical gravels are more likely to rotate. The maximum local elongation of the GCL was 3.79% during the lapping process, and all gravels in contact with the upper boundary of the GCL extruded the GCL to varying degrees during the lapping process. The distribution of bentonite particles is closely related to the contact mode between gravel and GCL. |
| format | Article |
| id | doaj-art-41ea1ad84c2c4065b8cd36bee90e82cf |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Buildings |
| spelling | doaj-art-41ea1ad84c2c4065b8cd36bee90e82cf2024-11-26T17:56:26ZengMDPI AGBuildings2075-53092024-11-011411364010.3390/buildings14113640Analysis of Gravel Migration Patterns During Vibration Rolling and Their Impact on GCL Performance Based on DEMHu Huang0Feihao Chen1Qingming Qiu2Ruihang Li3Lixia Guo4School of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Civil Engineering, Tianjin University, Tianjin 300072, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaSchool of Water Conservancy, North China University of Water Resources and Electric Power, Zhengzhou 450046, ChinaIn this study, a multilayer composite rolling model consisting of a rolling wheel, a protective layer, a GCL, and a support layer was constructed by the discrete element method (DEM). Soil compaction and gravel migration, and their effects on the GCL, were analyzed from a fine viewpoint, and three key indexes for the safety assessment of the GCL were proposed: local elongation, gravel embedment value, and bentonite allotment number. The results show that the soil porosity and cumulative settlement do not decrease all the time with the number of rolling passes, and there exists an optimal number of rolling passes during the rolling process; the protective layer of gravel soil moves more frequently than the support layer; and the nearly rectangular and nearly elliptical gravels are more likely to rotate. The maximum local elongation of the GCL was 3.79% during the lapping process, and all gravels in contact with the upper boundary of the GCL extruded the GCL to varying degrees during the lapping process. The distribution of bentonite particles is closely related to the contact mode between gravel and GCL.https://www.mdpi.com/2075-5309/14/11/3640bentonite distributionconstruction compactiondiscrete element methodgravel embedding valuelime-mixed gravel soilparticle migration |
| spellingShingle | Hu Huang Feihao Chen Qingming Qiu Ruihang Li Lixia Guo Analysis of Gravel Migration Patterns During Vibration Rolling and Their Impact on GCL Performance Based on DEM Buildings bentonite distribution construction compaction discrete element method gravel embedding value lime-mixed gravel soil particle migration |
| title | Analysis of Gravel Migration Patterns During Vibration Rolling and Their Impact on GCL Performance Based on DEM |
| title_full | Analysis of Gravel Migration Patterns During Vibration Rolling and Their Impact on GCL Performance Based on DEM |
| title_fullStr | Analysis of Gravel Migration Patterns During Vibration Rolling and Their Impact on GCL Performance Based on DEM |
| title_full_unstemmed | Analysis of Gravel Migration Patterns During Vibration Rolling and Their Impact on GCL Performance Based on DEM |
| title_short | Analysis of Gravel Migration Patterns During Vibration Rolling and Their Impact on GCL Performance Based on DEM |
| title_sort | analysis of gravel migration patterns during vibration rolling and their impact on gcl performance based on dem |
| topic | bentonite distribution construction compaction discrete element method gravel embedding value lime-mixed gravel soil particle migration |
| url | https://www.mdpi.com/2075-5309/14/11/3640 |
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