机场跑道对波音727型飞机滑行的动态响应实测研究

Field Research on Dynamic Response of Airport Runway to Taxiing of Boeing 727 Aircraft

在介绍丹佛国际机场项目的基础上,根据丹佛机场跑道实测弯沉数据,详细分析了机场跑道对波音727型飞机典型滑行事件的动力响应。对跑道实测弯沉数据的分析结果表明:飞机滑行时,横缝板边弯沉峰值较大且易出现脱空现象,跑道总沉降以地基沉降为主;板中荷载传递系数具有方向性;在板中弯沉盆反弯点内外,横向应变与纵向应变曲线凹凸方向不同;实测横向与纵向应变曲线形状随测量点至横缝的距离不同而变化。

Based on the introduction of Denver International Airport project,and measured deflection data of runway of Denver International Airport,the dynamic response of airport runway to typical taxiing of Boeing727 aircraft is analyzed in detail. The analysis results of measured deflection data of runway show that the peak value of deflection at the transverse joint of runway plate edges is much greater during the aircraft taxiing,and the void phenomenon easily occurs at the joint edge of the plate. The foundation settlement is the dominant part of the total runway settlement. Load transfer coefficient has directional property. Inside / outside of inflection point of deflection basin,the concavo-convex of transverse strain and longitudinal strain curve is different. The shape of transverse and longitudinal strain curves varies with the distance from the measuring points to the transverse joint.