Mechanism and Application of Soilbags Filled with Excavated Soil in Soft Soil Subgrade Treatment
This research addresses the characteristics of soft soil subgrades treated by soilbags filled with excavated clayey soil. We evaluated of the strength and deformation modulus of soilbags containing excavated soil using unconfined compression tests. In addition, the drainage consolidation characteris...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/14/5/1806 |
| _version_ | 1797264836182147072 |
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| author | Siyuan Xu Jie Liao Kewei Fan |
| author_facet | Siyuan Xu Jie Liao Kewei Fan |
| author_sort | Siyuan Xu |
| collection | DOAJ |
| description | This research addresses the characteristics of soft soil subgrades treated by soilbags filled with excavated clayey soil. We evaluated of the strength and deformation modulus of soilbags containing excavated soil using unconfined compression tests. In addition, the drainage consolidation characteristics of soilbag-treated subgrades were investigated via model consolidation tests. Furthermore, a practical application included the construction of a 100 m-long rural road subgrade with these soilbags. The field test and numerical simulation results included the surface settlement and pore water pressure during and after construction to validate the effectiveness of the soilbag treatment for soft soil subgrade. The results show that the soilbags significantly enhanced both the strength and deformation modulus of the soft soil, which met the design requirements after the soilbag treatment. The drainage attributes of the soilbag treatment were also found to support the consolidation process of the soft soil subgrade effectively. Notably, the pore water pressure diminished rapidly during the construction interval, which is beneficial to reducing the post-construction settlement. The settlement uniformity of the subgrade is good verification of the superiority of the soilbag-treated subgrades. |
| first_indexed | 2024-04-25T00:35:14Z |
| format | Article |
| id | doaj.art-39db0c31aec64e79b76e9acebe2e0d27 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-25T00:35:14Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-39db0c31aec64e79b76e9acebe2e0d272024-03-12T16:39:02ZengMDPI AGApplied Sciences2076-34172024-02-01145180610.3390/app14051806Mechanism and Application of Soilbags Filled with Excavated Soil in Soft Soil Subgrade TreatmentSiyuan Xu0Jie Liao1Kewei Fan2Department of Geotechnical Engineering, Nanjing Hydraulic Research Institute, Nanjing 210024, ChinaCollege of Civil Engineering, Sanjiang University, Nanjing 210012, ChinaCollege of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, ChinaThis research addresses the characteristics of soft soil subgrades treated by soilbags filled with excavated clayey soil. We evaluated of the strength and deformation modulus of soilbags containing excavated soil using unconfined compression tests. In addition, the drainage consolidation characteristics of soilbag-treated subgrades were investigated via model consolidation tests. Furthermore, a practical application included the construction of a 100 m-long rural road subgrade with these soilbags. The field test and numerical simulation results included the surface settlement and pore water pressure during and after construction to validate the effectiveness of the soilbag treatment for soft soil subgrade. The results show that the soilbags significantly enhanced both the strength and deformation modulus of the soft soil, which met the design requirements after the soilbag treatment. The drainage attributes of the soilbag treatment were also found to support the consolidation process of the soft soil subgrade effectively. Notably, the pore water pressure diminished rapidly during the construction interval, which is beneficial to reducing the post-construction settlement. The settlement uniformity of the subgrade is good verification of the superiority of the soilbag-treated subgrades.https://www.mdpi.com/2076-3417/14/5/1806geosyntheticssoilbagsoft soil subgrade treatmentfield studydrainage consolidation |
| spellingShingle | Siyuan Xu Jie Liao Kewei Fan Mechanism and Application of Soilbags Filled with Excavated Soil in Soft Soil Subgrade Treatment Applied Sciences geosynthetics soilbag soft soil subgrade treatment field study drainage consolidation |
| title | Mechanism and Application of Soilbags Filled with Excavated Soil in Soft Soil Subgrade Treatment |
| title_full | Mechanism and Application of Soilbags Filled with Excavated Soil in Soft Soil Subgrade Treatment |
| title_fullStr | Mechanism and Application of Soilbags Filled with Excavated Soil in Soft Soil Subgrade Treatment |
| title_full_unstemmed | Mechanism and Application of Soilbags Filled with Excavated Soil in Soft Soil Subgrade Treatment |
| title_short | Mechanism and Application of Soilbags Filled with Excavated Soil in Soft Soil Subgrade Treatment |
| title_sort | mechanism and application of soilbags filled with excavated soil in soft soil subgrade treatment |
| topic | geosynthetics soilbag soft soil subgrade treatment field study drainage consolidation |
| url | https://www.mdpi.com/2076-3417/14/5/1806 |
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