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建立了Winkler地基上考虑层间接触状况的双层路面结构模型,计算了传力杆几何尺寸、空间位置、与混凝土结合状况及布设方式对采用乳化沥青进行层间处治的水泥混凝土路面接缝传荷能力、传力杆内力和面层最大应力的影响。结果表明:增加传力杆长度、直径不能有效提高接缝传荷能力,但能降低面层最大应力;弯沉传荷系数随传力杆竖直偏角的增大线性减小,随传力杆支撑模量的增大呈指数增大,随松动量的增大呈二次曲线下降;弯沉传荷系数随传力杆数量的增加而提高;数量相同时,层数和位置差异对传荷能力影响不大,均匀布设改为轮迹带布置时传荷能力略有降低;达到一定数量后接缝传荷能力几乎不再因布设位置、层数发生变化。
The double-layer pavement structure model of Winkler foundation considering the status of interlayer contact is established. The geometrical dimensions of the dowel bar, the spatial position, the combination with the concrete and the layout are calculated. Dutch ability, force transmission rod and the maximum surface pressure of the impact. The results show that: increasing the length and diameter of dowel bar can not effectively improve the load carrying capacity of the joint, but can reduce the maximum stress of the surface layer; the deflection and load transfer coefficient decreases linearly with the increase of vertical dowel angle of dowel bar, The increase of rod support modulus increases exponentially, and decreases with the increase of loosening amount. The curve load-transfer coefficient increases with the increase of the number of dowel bar. When the number is the same, the difference of layer number and position The influence of load capacity is not big, and the load carrying capacity is slightly reduced when the layout is changed to the arrangement of wheel tracks. When the load reaches a certain amount, the load transfer performance of the joints is hardly changed due to the location and the number of layers.