Discussion on the Structural Design Index and Design Method of Widening and Splicing Lane of Old Asphalt Pavement
The splicing design of the existing road and the new road in the expansion project is an important part of the design work. Based on the analysis of the characteristics and the load effect of pavement structure on splicing, this paper points out that tensile crack or shear failure may occur at the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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University of Baghdad
2023-12-01
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| Series: | Journal of Engineering |
| Subjects: | |
| Online Access: | https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/1961 |
| _version_ | 1827365978063765504 |
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| author | Li Jun Liao Chen-Xi Tian Xiao-Ge Xie Zhen |
| author_facet | Li Jun Liao Chen-Xi Tian Xiao-Ge Xie Zhen |
| author_sort | Li Jun |
| collection | DOAJ |
| description |
The splicing design of the existing road and the new road in the expansion project is an important part of the design work. Based on the analysis of the characteristics and the load effect of pavement structure on splicing, this paper points out that tensile crack or shear failure may occur at the splicing under the repeated action of the traffic load on the new/old pavement. According to the current structure design code of asphalt pavement in China, it is proposed that the horizontal tensile stress at the bottom of the splicing layer and the vertical shear stress at other layers of the splicing line should be controlled by adjusting the position and size of the excavated steps in addition to the conventional design index, and put forward the corresponding technical requirements and design process. It can be used for reference in the design of asphalt pavement reconstruction and expansion projects.
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| first_indexed | 2024-03-08T08:40:29Z |
| format | Article |
| id | doaj.art-9b5a6b1cffd143708dd5f7ca406eb633 |
| institution | Directory Open Access Journal |
| issn | 1726-4073 2520-3339 |
| language | English |
| last_indexed | 2024-03-08T08:40:29Z |
| publishDate | 2023-12-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Journal of Engineering |
| spelling | doaj.art-9b5a6b1cffd143708dd5f7ca406eb6332024-02-01T19:48:29ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392023-12-01291210.31026/j.eng.2023.12.03Discussion on the Structural Design Index and Design Method of Widening and Splicing Lane of Old Asphalt PavementLi Jun0Liao Chen-Xi1Tian Xiao-Ge2Xie Zhen3Guangdong Kaiyang Expressway Co., Ltd., Kaiping Guangdong 529300, ChinaGuangdong Kaiyang Expressway Co., Ltd., Kaiping Guangdong 529300, ChinaSchool of Traffic and Transportation Engineering, Changsha University of Science ＆ Technology, Changsha Hunan 410114, ChinaChangsha University of Science ＆ Technology The splicing design of the existing road and the new road in the expansion project is an important part of the design work. Based on the analysis of the characteristics and the load effect of pavement structure on splicing, this paper points out that tensile crack or shear failure may occur at the splicing under the repeated action of the traffic load on the new/old pavement. According to the current structure design code of asphalt pavement in China, it is proposed that the horizontal tensile stress at the bottom of the splicing layer and the vertical shear stress at other layers of the splicing line should be controlled by adjusting the position and size of the excavated steps in addition to the conventional design index, and put forward the corresponding technical requirements and design process. It can be used for reference in the design of asphalt pavement reconstruction and expansion projects. https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/1961Reconstruction and expansion projectRoad wideningDesign indexDesign standardDesign method |
| spellingShingle | Li Jun Liao Chen-Xi Tian Xiao-Ge Xie Zhen Discussion on the Structural Design Index and Design Method of Widening and Splicing Lane of Old Asphalt Pavement Journal of Engineering Reconstruction and expansion project Road widening Design index Design standard Design method |
| title | Discussion on the Structural Design Index and Design Method of Widening and Splicing Lane of Old Asphalt Pavement |
| title_full | Discussion on the Structural Design Index and Design Method of Widening and Splicing Lane of Old Asphalt Pavement |
| title_fullStr | Discussion on the Structural Design Index and Design Method of Widening and Splicing Lane of Old Asphalt Pavement |
| title_full_unstemmed | Discussion on the Structural Design Index and Design Method of Widening and Splicing Lane of Old Asphalt Pavement |
| title_short | Discussion on the Structural Design Index and Design Method of Widening and Splicing Lane of Old Asphalt Pavement |
| title_sort | discussion on the structural design index and design method of widening and splicing lane of old asphalt pavement |
| topic | Reconstruction and expansion project Road widening Design index Design standard Design method |
| url | https://www.joe.uobaghdad.edu.iq/index.php/main/article/view/1961 |
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