| 重载沥青路面基于实测荷载图式的轴载换算研究 |
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| 引用本文： | 张洪亮,许金良,郭荣庆,杨宏志.重载沥青路面基于实测荷载图式的轴载换算研究[J].武汉理工大学学报(交通科学与工程版),2010,34(1):110-112,129. |
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| 作者姓名： | 张洪亮 许金良 郭荣庆 杨宏志 |
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| 作者单位： | 1. 长安大学特殊地区公路工程教育部重点实验室,西安,710064
2. 长安大学汽车学院,西安,710064 |
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| 基金项目： | 国家自然科学基金项目资助(批准号:50608007) |
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| 摘 要： | 为更准确地进行重载沥青路面轴载换算，调查了货车的轴重及胎压分布，发现了两者之间存在的对应关系．改变轴重和胎压测试了轮迹，轮胎接地压强和接地半径均随轴载的增加而增加，荷载中心距保持不变．测试了移动车辆的轮胎接地压强分布，发现在全轮迹范围内基本属于均匀分布．根据重载车辆轮迹及轮胎接地压强分布，得到了重载道路荷载作用图式．采用该图式，并充分考虑路面结构的非线性，推导出基于弯沉等效、弯拉等效和土基顶面压应变等效的轴载换算公式．
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| 关 键 词： | 道路工程 重载 沥青路面 荷载作用图式 轴载换算 |
Axle Load Conversion Formula for Asphalt Pavement Under Heavy-load Based on Load Figures Tested |
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| Institution: | Key Laboratory for Special Area Highway Engineering of Ministry of Education/a>;Chang'an University/a>;Xi'an 710064/a>;China;School of Automobile/a>;China |
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| Abstract: | In order to get the accuracy axle load conversion formula for asphalt pavement,the inquiry about the axle load and the tire's inflation pressure of trucks was made,it was found that the inflation pressure of the tire varied with the axle load.One obtained the footprints of the vehicles with different axle loads and the inflation pressures of tires.It was found that the average contact pressure and the contact area increased with the axle load,and the distance between the centers of the two adjacent footprin... |
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| Keywords: | highway engineering heavy-load asphalt pavement load figure axle load conversion |
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