水泥混凝土机场道面板角脱空判定分析

针对机场水泥混凝土道面板角脱空问题，把道面板划分为弹性地基上的梁，得出道面板板中及板角的弯沉公式．根据接缝的传荷性能，提出了应用板角弯沉值与板中弯沉值之比判定板角脱空的方法；通过某机场水泥混凝土道面实测弯沉数据及现场钻芯取样验证了该法的正确性；详细讨论了影响板角脱空的几个主要因素，为实际工程中板角脱空的判断及防止提出了一些有益的建议．

Void Identifying Under Airport Portland Cement Concrete Pavement Corner

To deal with the problem of the void possibility beneath the slabs, the slab is divided as beams above the elastic subgrade and the deflection functions for the center and the comer of the slab are deduced. Based on the transfer load of joints, the ratio between the deflection in the comer and the one in the center is established to appraise the void possibility beneath slabs. The method is verified through the measured deflection data of an airfield slab. Finally, effects of relevant parameters on the void possibility beneath slabs are analyzed and presented according to the compiled program. Some useful suggestions are proposed to appraise and prevent the void possibility beneath slabs in the project.