Evaluation of the Coordination of Structural Layers in the Design of Asphalt Pavement
The purpose of asphalt pavement structural design is to get a materially-coordinated and structurally-durable product, and a pavement structure with good road performance by combining the structural layer materials reasonably. However, due to lack of a rational evaluation index on the parameter comb...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-05-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/10/9/3178 |
| _version_ | 1797569058988621824 |
|---|---|
| author | Hao Li Naren Fang Xuancang Wang Chuanhai Wu Yang Fang |
| author_facet | Hao Li Naren Fang Xuancang Wang Chuanhai Wu Yang Fang |
| author_sort | Hao Li |
| collection | DOAJ |
| description | The purpose of asphalt pavement structural design is to get a materially-coordinated and structurally-durable product, and a pavement structure with good road performance by combining the structural layer materials reasonably. However, due to lack of a rational evaluation index on the parameter combinations of structural layer materials, the structural layer materials are poor in terms of coordination, have low efficiency, and the actual use period is much lower than the designed working life. Therefore, it is very important to conduct research evaluating the coordination of the structural layer materials. In this study, the sensitivity of mechanical parameters and equivalent envelope area are proposed as new indexes to evaluate the coordination of material design of asphalt pavement structure layers. Software is developed to calculate the equivalent envelope area that can quantitatively evaluate the coordination among different layers and visualize the mechanical transfer behavior of each structural layer. Based on the equivalent envelope area index, this study incorporates two new steps in the design of pavements, namely the structural form comparison and optimization, and proposes a new structural design process. Finally, the rationality and reliability of the equivalent envelope area index are verified by presenting fatigue life calculation and field verification in a test road. The results propose a clear evaluation index of the coordination of material design of each structural layer, which makes the structural design of the asphalt pavement more scientific and reasonable. |
| first_indexed | 2024-03-10T20:05:39Z |
| format | Article |
| id | doaj.art-9252017caa994d1a8847af216eb0650d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T20:05:39Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-9252017caa994d1a8847af216eb0650d2023-11-19T23:19:58ZengMDPI AGApplied Sciences2076-34172020-05-01109317810.3390/app10093178Evaluation of the Coordination of Structural Layers in the Design of Asphalt PavementHao Li0Naren Fang1Xuancang Wang2Chuanhai Wu3Yang Fang4School of Highway Engineering, Chang’an University, Xi’an 710064, ChinaSchool of Highway Engineering, Chang’an University, Xi’an 710064, ChinaSchool of Highway Engineering, Chang’an University, Xi’an 710064, ChinaGuangdong Hualu Communications Technology Co. LTD, Guangzhou 510420, ChinaFoshan Transportation Science and Technology Co. LTD, Foshan 528041, ChinaThe purpose of asphalt pavement structural design is to get a materially-coordinated and structurally-durable product, and a pavement structure with good road performance by combining the structural layer materials reasonably. However, due to lack of a rational evaluation index on the parameter combinations of structural layer materials, the structural layer materials are poor in terms of coordination, have low efficiency, and the actual use period is much lower than the designed working life. Therefore, it is very important to conduct research evaluating the coordination of the structural layer materials. In this study, the sensitivity of mechanical parameters and equivalent envelope area are proposed as new indexes to evaluate the coordination of material design of asphalt pavement structure layers. Software is developed to calculate the equivalent envelope area that can quantitatively evaluate the coordination among different layers and visualize the mechanical transfer behavior of each structural layer. Based on the equivalent envelope area index, this study incorporates two new steps in the design of pavements, namely the structural form comparison and optimization, and proposes a new structural design process. Finally, the rationality and reliability of the equivalent envelope area index are verified by presenting fatigue life calculation and field verification in a test road. The results propose a clear evaluation index of the coordination of material design of each structural layer, which makes the structural design of the asphalt pavement more scientific and reasonable.https://www.mdpi.com/2076-3417/10/9/3178road engineeringasphalt pavementcoordination evaluationsensitivityequivalent envelope area |
| spellingShingle | Hao Li Naren Fang Xuancang Wang Chuanhai Wu Yang Fang Evaluation of the Coordination of Structural Layers in the Design of Asphalt Pavement Applied Sciences road engineering asphalt pavement coordination evaluation sensitivity equivalent envelope area |
| title | Evaluation of the Coordination of Structural Layers in the Design of Asphalt Pavement |
| title_full | Evaluation of the Coordination of Structural Layers in the Design of Asphalt Pavement |
| title_fullStr | Evaluation of the Coordination of Structural Layers in the Design of Asphalt Pavement |
| title_full_unstemmed | Evaluation of the Coordination of Structural Layers in the Design of Asphalt Pavement |
| title_short | Evaluation of the Coordination of Structural Layers in the Design of Asphalt Pavement |
| title_sort | evaluation of the coordination of structural layers in the design of asphalt pavement |
| topic | road engineering asphalt pavement coordination evaluation sensitivity equivalent envelope area |
| url | https://www.mdpi.com/2076-3417/10/9/3178 |
| work_keys_str_mv | AT haoli evaluationofthecoordinationofstructurallayersinthedesignofasphaltpavement AT narenfang evaluationofthecoordinationofstructurallayersinthedesignofasphaltpavement AT xuancangwang evaluationofthecoordinationofstructurallayersinthedesignofasphaltpavement AT chuanhaiwu evaluationofthecoordinationofstructurallayersinthedesignofasphaltpavement AT yangfang evaluationofthecoordinationofstructurallayersinthedesignofasphaltpavement |