A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-toughness asphalt pavement structure based on strong roadbed and design method
The invention provides a high-toughness asphalt pavement structure based on a strong roadbed and a design method, and belongs to the technical field of road engineering design. The maximum traffic axle load and the highest temperature are determined according to the annual axle load spectrum and the annual temperature field of the active service pavement around the high-toughness asphalt pavement structure, and then the design scheme of the high-toughness asphalt pavement structure is updated by combining the highest temperature according to the initial design scheme of the high-toughness asphalt pavement structure. A high-toughness asphalt pavement structure numerical model is constructed based on a semi-analytical method finite element, the maximum traffic axle load is used as a load, the high-toughness asphalt pavement structure numerical model is used for simulation to obtain each pavement design index, whether each pavement design index value exceeds a critical value or not is judged, and if not, an optimal design scheme is obtained. And if so, adjusting the initial planning scheme to perform simulation again until an optimal design scheme is obtained. The influence of temperature and load on the pavement structure is fully considered, and the environmental load resistance and durability of the pavement structure are improved.
本发明提供了一种基于强路基的高韧性沥青路面结构及设计方法，属于道路工程设计技术领域。本发明根据高韧性沥青路面结构周围现役路面的全年轴载谱和全年温度场，确定最大交通轴载和最高温度，再根据高韧性沥青路面结构的初拟设计方案，结合最高温度更新高韧性沥青路面结构设计方案，基于半解析法有限元构建高韧性沥青路面结构数值模型，以最大交通轴载作为荷载，利用高韧性沥青路面结构数值模型模拟得到各路面设计指标，判断各路面设计指标值是否超过临界值，若未超过则得到最佳设计方案，若超过则调整初拟计划方案重新进行模拟，直至得到最佳设计方案。本发明充分考虑了温度和荷载对路面结构的影响，提高了路面结构的抗环境负荷性能和耐久性。
High-toughness asphalt pavement structure based on strong roadbed and design method
The invention provides a high-toughness asphalt pavement structure based on a strong roadbed and a design method, and belongs to the technical field of road engineering design. The maximum traffic axle load and the highest temperature are determined according to the annual axle load spectrum and the annual temperature field of the active service pavement around the high-toughness asphalt pavement structure, and then the design scheme of the high-toughness asphalt pavement structure is updated by combining the highest temperature according to the initial design scheme of the high-toughness asphalt pavement structure. A high-toughness asphalt pavement structure numerical model is constructed based on a semi-analytical method finite element, the maximum traffic axle load is used as a load, the high-toughness asphalt pavement structure numerical model is used for simulation to obtain each pavement design index, whether each pavement design index value exceeds a critical value or not is judged, and if not, an optimal design scheme is obtained. And if so, adjusting the initial planning scheme to perform simulation again until an optimal design scheme is obtained. The influence of temperature and load on the pavement structure is fully considered, and the environmental load resistance and durability of the pavement structure are improved.
本发明提供了一种基于强路基的高韧性沥青路面结构及设计方法，属于道路工程设计技术领域。本发明根据高韧性沥青路面结构周围现役路面的全年轴载谱和全年温度场，确定最大交通轴载和最高温度，再根据高韧性沥青路面结构的初拟设计方案，结合最高温度更新高韧性沥青路面结构设计方案，基于半解析法有限元构建高韧性沥青路面结构数值模型，以最大交通轴载作为荷载，利用高韧性沥青路面结构数值模型模拟得到各路面设计指标，判断各路面设计指标值是否超过临界值，若未超过则得到最佳设计方案，若超过则调整初拟计划方案重新进行模拟，直至得到最佳设计方案。本发明充分考虑了温度和荷载对路面结构的影响，提高了路面结构的抗环境负荷性能和耐久性。
High-toughness asphalt pavement structure based on strong roadbed and design method
一种基于强路基的高韧性沥青路面结构及设计方法
LIU GUOSHAN (author) / XU XIZHONG (author) / LIU FENG (author) / WEI JINCHENG (author) / JIANG FENGCHUAN (author) / WANG GUANGYONG (author) / WEI CHUANWEN (author) / ZHANG XIAOMENG (author) / WANG MINGFA (author) / WU WENJUAN (author)
2024-10-15
Patent
Electronic Resource
Chinese
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