作　　者： ; ;

机构地区： 东南大学交通学院

出　　处： 《公路交通科技》 2006年第8期33-35,47,共4页

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。 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.

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

领　　域： [交通运输工程]