路面倒装结构弯沉交工验收值修正方法研究

The Research on the Correction Method of Deflection Acceptance Value for the Pavement Inverted Structure

随着我国公路建设的飞速发展,半刚性基层路面暴露出反射裂缝较多、路面早期局部破损等问题,因此倒装结构路面在部分省份开始了应用,但因倒装结构力学计算模型、土基模量、材料特性等方面理论假设与实际状态之间存在一些差异,图纸给定的弯沉交工验收值与实测值难以匹配,不能实际指导施工现场交工验收工作。结合工程实际,使用实测的土基回弹模量及弯沉实测值,依据相关规范计算得到修正计算弯沉值,可为路面倒装结构的沥青层弯沉交工验收提供参考。

Combined with the engineering practice, using the measures elastic modulus of soil foundation and the measured value of deflection, according to the relevant specifications, this paper obtained the modified deflection value by calculation, which provided reference for the acceptance of asphalt layer deflection for the pavement inverted structure.