| 半刚性基层沥青路面轴数系数研究 |
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| 引用本文： | 马涛,黄晓明.半刚性基层沥青路面轴数系数研究[J].公路交通科技,2006,23(8):33-35,47. |
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| 作者姓名： | 马涛 黄晓明 |
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| 作者单位： | 东南大学,交通学院,江苏,南京,210096 |
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| 摘 要： | 应用弹性层状体系理论计算程序，分别以路表设计弯沉值，半刚性基层层底拉应力为换算指标，变换面层、半刚性基层、土基等不同结构层的参数，同时考虑轴距变化的影响，计算半刚性基层沥青路面轴载换算公式中的轴数系数。首先分析各结构层参数对轴数系数的影响，然后通过回归分析计算结果，提出建议的轴数系数计算公式，并与我国设计方法中取值作对比分析，发现以拉应力指标控制的轴数系数计算公式与规范较为接近，相对而言规范偏于安全保守。
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| 关 键 词： | 弹性层状理论 半刚性基层 轴载换算 轴数系数 结构层参数 |
| 文章编号： | 1002-0268（2006）08-0033-03 |
| 收稿时间： | 2005-05-25 |
| 修稿时间： | 2005-05-25 |
Research on Equivalent Axle-number Coefficient of Asphalt Pavement with Semi-rigid Base |
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| MA Tao,HUANG Xiao-ming.Research on Equivalent Axle-number Coefficient of Asphalt Pavement with Semi-rigid Base[J].Journal of Highway and Transportation Research and Development,2006,23(8):33-35,47. |
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| Authors: | MA Tao HUANG Xiao-ming |
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| Institution: | Transportation College of Southeast University, Jiangsu Nanjing 210096, China |
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| Abstract: | By use of program based on layer-elastic theory, with surface design deflection value and stress under semi-rigid base as conversion indexes under the conditions of different structure-layer and wheelbase parameters, the axle-number coefficient in the axle-load conversion formula for semi-rigid asphalt pavement is calculated. Through analyzing the results, the recommended axle-number coefficient formula is proposed and comparisons are made with design methods used in China. The axle-number coefficient controlled by the stress under semi-rigid base is found to be similar with the coefficient defined in the specification. However, the axle-number coefficient in the specification is relatively conservative. |
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| Keywords: | layer-elastic theory semi-rigid base axle-load exchange axle-number coefficient structure-layer parameter |
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