Damage Evaluation of the Paving around Manholes under Vehicle Dynamic Load
It is very important for pavement engineers to know which factors are the main reasons for the damage of the paving around manholes. Based on the investigation on the damage of paving around manholes, a vibration model with multidegree of freedom for the vehicle-manhole cover was established and ana...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/6510439 |
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| author | Wenjun Hu Quanman Zhao Yao Liu Zhigang Li Xianghui Kong |
| author_facet | Wenjun Hu Quanman Zhao Yao Liu Zhigang Li Xianghui Kong |
| author_sort | Wenjun Hu |
| collection | DOAJ |
| description | It is very important for pavement engineers to know which factors are the main reasons for the damage of the paving around manholes. Based on the investigation on the damage of paving around manholes, a vibration model with multidegree of freedom for the vehicle-manhole cover was established and analyzed. After that, the Matlab software was used to obtain the variation law of impact load over time, and the 95% fourth power of the aggregate force was used as the index to evaluate the pavement damage. Finally, many influencing factors on pavement damage were analyzed by the method of grey correlation entropy. The results indicated that the impact load reached the maximum for the first time when the vehicle reached the top of the manhole cover, which was 1.29 times that of the static load, and the pavement damage coefficient was 2.12 times that of the static load. The influencing factors had different degrees of influence on the pavement damage; from large to small, they were change of road longitudinal slope > driving speed > damping of tire > stiffness of tire > height difference from the pavement damage > height difference from the manhole settlement > stiffness of the manhole cover. |
| format | Article |
| id | doaj-art-5f3c93af2dc34b518fc2ff92ae501aed |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-5f3c93af2dc34b518fc2ff92ae501aed2025-02-03T06:06:32ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422020-01-01202010.1155/2020/65104396510439Damage Evaluation of the Paving around Manholes under Vehicle Dynamic LoadWenjun Hu0Quanman Zhao1Yao Liu2Zhigang Li3Xianghui Kong4School of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Transportation Engineering, Shandong Jianzhu University, Jinan 250101, ChinaIt is very important for pavement engineers to know which factors are the main reasons for the damage of the paving around manholes. Based on the investigation on the damage of paving around manholes, a vibration model with multidegree of freedom for the vehicle-manhole cover was established and analyzed. After that, the Matlab software was used to obtain the variation law of impact load over time, and the 95% fourth power of the aggregate force was used as the index to evaluate the pavement damage. Finally, many influencing factors on pavement damage were analyzed by the method of grey correlation entropy. The results indicated that the impact load reached the maximum for the first time when the vehicle reached the top of the manhole cover, which was 1.29 times that of the static load, and the pavement damage coefficient was 2.12 times that of the static load. The influencing factors had different degrees of influence on the pavement damage; from large to small, they were change of road longitudinal slope > driving speed > damping of tire > stiffness of tire > height difference from the pavement damage > height difference from the manhole settlement > stiffness of the manhole cover.http://dx.doi.org/10.1155/2020/6510439 |
| spellingShingle | Wenjun Hu Quanman Zhao Yao Liu Zhigang Li Xianghui Kong Damage Evaluation of the Paving around Manholes under Vehicle Dynamic Load Advances in Materials Science and Engineering |
| title | Damage Evaluation of the Paving around Manholes under Vehicle Dynamic Load |
| title_full | Damage Evaluation of the Paving around Manholes under Vehicle Dynamic Load |
| title_fullStr | Damage Evaluation of the Paving around Manholes under Vehicle Dynamic Load |
| title_full_unstemmed | Damage Evaluation of the Paving around Manholes under Vehicle Dynamic Load |
| title_short | Damage Evaluation of the Paving around Manholes under Vehicle Dynamic Load |
| title_sort | damage evaluation of the paving around manholes under vehicle dynamic load |
| url | http://dx.doi.org/10.1155/2020/6510439 |
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