摘要
机场跑道路面的隐性结构病害严重威胁飞机的运行安全,为了准确、及时对道面结构承载能力进行检测和内部结构病害的精准识别,依托广东白云机场开展跑道道面无损检测技术研究。采用落锤弯沉仪法获取的弯沉盆反演道面结构层弹性模量,联合水泥板间弯沉比传递系数,可以全面评价机场道面承载能力,模量偏低的道面水泥板,其板间弯沉比传递系数偏小,二者间存在良好的映射关系。采用三维探地雷达技术开展道面结构层内部病害检测,发现弯沉比传递系数偏低位置出现传力杆断裂、变形,混凝土板内部破碎,接缝处积水等问题,建议对不同病害开展分质处治措施。两种无损检测技术的结合可以高效检测与评价跑道道面路用性能,也为路面病害探测与处治提供准确可靠的技术依据。
The hidden structural disease of the airport runway pavement seriously threatens the safety of the operational aircraft.In order to accurately and timely detect the bearing capacity of the pavement structure and accurately identify the internal structural diseases,the non-destructive testing technology research is carried out based on the runway surface of Guangdong Baiyun Airport.Inversion of the elastic modulus of the pavement structure by the deflection cone method obtained by the drop hammer deflection method,combined with the coefficient of transfer ratio between the cement plates,can comprehensively evaluate the pavement cement with low bearing capacity and low modulus.In the board,the deflection between the plates is smaller than the transfer coefficient,and there is a good mapping relationship between the two.The three-dimensional ground penetrating radar technology is used to detect the internal disease of the pavement structure layer.It is found that the deflection and deformation of the force-transmitting rod occur in the position where the deflection is lower than the transfer coefficient,and the interior of the concrete slab is broken and the water is accumulated at the joint.It is recommended to carry out different treatment measures according to diseases.The combination of two non-destructive testing technologies can efficiently detect and evaluate the road surface performance of the runway,and provide an accurate and reliable technical basis for the detection and treatment of pavement diseases.
作者
李柱峰
黄志勇
陈搏
LI Zhu-feng;HUANG Zhi-yong;CHEN Bo(Guangzhou Baiyun International Airport Co.,Ltd.,Guangzhou 510406,China;Xiaoning Institute of Roadway Engineering,Guangzhou 510641,China)
出处
《科技和产业》
2019年第10期158-162,共5页
Science Technology and Industry
基金
广东省科技厅科技计划项目（2014B010105005）
关键词
机场道面
落锤弯沉仪
三维雷达
承载能力
结构病害
airport pavement
falling weight deflectometer
three-dimensional radar
bearing capacity
structural damage
