回弹模量对路面验收弯沉的影响分析

Modulus on Pavement Acceptance Deflection

摘要:

新建沥青路面结构设计中，各层结构材料抗压回弹模量的大小对路面验收弯沉值有一定影响。通过计算路面结构，研究各层结构材料回弹模量变化对路面验收弯沉值的影响。结果表明：各层结构材料的回弹模量对路面验收弯沉值的影响程度，自路面结构下层向上层逐层递减；各层结构材料回弹模量取值区间不同且结构厚度差异大，导致对应的路面验收弯沉变化区间也较大。其中，水泥稳定碎石基层的回弹模量值较大，结构厚度较厚，其对应的路面验收弯沉值的影响区间最大。

Abstract:

In the design of new asphalt pavement structures, the compressive rebound modulus of each layer of structural materials has a certain impact on the acceptance deflection value of the pavement. By calculating the pavement structure, the influence of the variation of the rebound modulus of each layer of structural materials on the acceptance deflection value of the pavement is studied. The result shows that the influence of the rebound modulus of each layer of structural materials on the acceptance deflection value decreases progressively from the lower layers to the upper layers of the pavement structure. The value range of the rebound modulus of each layer of structural materials is different, and the thickness of the structure varies greatly, leading to a relatively large variation range of pavement acceptance deflection, in which the rebound modulus value of the cement-stabilized crushed stone base is relatively large, and the structural thickness is relatively thick. The influence range of the corresponding pavement acceptance deflection value is the largest.