Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway Widening
Based on the widening project of Ri-Lan highway in China, the finite element model is established by PLAXIS. By applying differential settlement at the bottom of the pavement, the mechanical response of the pavement structure is analysed. Finally, the differential settlement control standard indicat...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/4445185 |
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| _version_ | 1832566365168336896 |
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| author | Quanjun Shen Yu Lu Yaohui Yang Guanxu Long |
| author_facet | Quanjun Shen Yu Lu Yaohui Yang Guanxu Long |
| author_sort | Quanjun Shen |
| collection | DOAJ |
| description | Based on the widening project of Ri-Lan highway in China, the finite element model is established by PLAXIS. By applying differential settlement at the bottom of the pavement, the mechanical response of the pavement structure is analysed. Finally, the differential settlement control standard indicated by crack strength is proposed. The results show that, under the effect of differential settlement, within about 4 cm of old pavement surface and upper base bear tensile stress, the base first reaches the failure strength. Under 4 cm of the old pavement surface, the subbase first reaches the failure strength. The differential settlement control standard of the pavement structure is determined by the splitting strength of the material, and we, respectively, control the differential settlement of less than 23.4 mm, where the corresponding cross-slope rate is 0.33%, and below 75.2 mm, where the corresponding cross-slope rate is 0.54%. It could support practical engineering applications. |
| format | Article |
| id | doaj-art-c099e1fd3b8b422ca597857cd8a6988d |
| institution | Kabale University |
| issn | 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-c099e1fd3b8b422ca597857cd8a6988d2025-02-03T01:04:21ZengWileyAdvances in Materials Science and Engineering1687-84422021-01-01202110.1155/2021/4445185Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway WideningQuanjun Shen0Yu Lu1Yaohui Yang2Guanxu Long3Shandong Hi-Speed Group Co.School of Civil EngineeringShandong Hi-Speed Group Co.Shandong Hi-Speed Group Co.Based on the widening project of Ri-Lan highway in China, the finite element model is established by PLAXIS. By applying differential settlement at the bottom of the pavement, the mechanical response of the pavement structure is analysed. Finally, the differential settlement control standard indicated by crack strength is proposed. The results show that, under the effect of differential settlement, within about 4 cm of old pavement surface and upper base bear tensile stress, the base first reaches the failure strength. Under 4 cm of the old pavement surface, the subbase first reaches the failure strength. The differential settlement control standard of the pavement structure is determined by the splitting strength of the material, and we, respectively, control the differential settlement of less than 23.4 mm, where the corresponding cross-slope rate is 0.33%, and below 75.2 mm, where the corresponding cross-slope rate is 0.54%. It could support practical engineering applications.http://dx.doi.org/10.1155/2021/4445185 |
| spellingShingle | Quanjun Shen Yu Lu Yaohui Yang Guanxu Long Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway Widening Advances in Materials Science and Engineering |
| title | Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway Widening |
| title_full | Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway Widening |
| title_fullStr | Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway Widening |
| title_full_unstemmed | Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway Widening |
| title_short | Research on Mechanical Response of Pavement Structure to Differential Settlement of Subgrade on Highway Widening |
| title_sort | research on mechanical response of pavement structure to differential settlement of subgrade on highway widening |
| url | http://dx.doi.org/10.1155/2021/4445185 |
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