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为深入分析半刚性基层沥青路面和复合式基层沥青路面面层内的最大拉应变的规律,选取两类沥青路面的典型结构,采用壳牌设计软件BISAR3.0为计算工具,考虑层间完全连续以及不完全连续两种状态,对各结构在不同的层间结合条件下沥青层最大拉应变进行了比较和分析。结果表明:对于两类沥青路面而言,当层间条件为完全连续时,沥青层最大拉应变出现在面层层底;当层间条件为不完全连续时,沥青层最大拉应变出现在中面层层底。
In order to deeply analyze the law of maximum tensile strain in semi-rigid base asphalt pavement and composite base asphalt pavement surface, the typical structure of two types of asphalt pavement is selected. With Shell design software BISAR 3.0 as calculation tool, Incompletely continuous two states, the maximum tensile strain of asphalt layer was compared and analyzed under the condition of different interlayer combination. The results show that for two kinds of asphalt pavement, the maximum tensile strain of asphalt layer appears at the bottom of the bedding layer when the conditions between layers are completely continuous. When the interlayer conditions are not completely continuous, the maximum tensile strain of asphalt layer appears Layer bottom.