机场水泥混凝土道面弯沉的影响因素分析

竖向挠度过大是引起机场道面损坏的一个重要原因,因此弯沉是机场道面结构设计时的重要考虑指标。影响道面弯沉的因素有很多。该文通过对影响道面弯沉的三个最主要因素进行分析,分别为面层厚度、面层材料弯拉模量和基层顶面反应模量,得到不同影响因素对道面弯沉的影响程度,比选出对弯沉影响最大的因素,作为改善道面挠度时优先考虑的指标,为道面结构设计提供参考。

Analysis of Influence Factor on Bending Deflection of Cement Concrete Pavement in Airport

Too large vertical deflection is an important factor to cause the damage of the pavement in airport.Therefore,the bending deflection is the importantly considered index in the design of the pavement structure of airport.There are many factors to influence the pavement deflection.The article analyzes three most important factors of surface thickness,surface material flexural modulus and base top surface reaction modulus to influence the pavement deflection,gives the different influence degrees to influence the pavement deflection,and compares the maximum factor to influence the deflection.The index,preferentially considered in the improvement of pavement deflection,can be referred for the design of pavement structure.