基于共轭梁理论的机场道基沉降广域感知方法  

Wide Range Monitoring Method for Runway Foundation Settlement Based on the Conjugate Beam Theory

作　　者：凌建明[1,2] 杨毅杰 张家科 方意心 LING Jianming;YANG Yijie;ZHANG Jiake;FANG Yixin

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海201804 [2]同济大学民航飞行区设施耐久与运行安全重点实验室,上海201804

出　　处：《上海公路》2022年第2期1-6,M0003,共7页Shanghai Highways

基　　金：国家重点研发计划(2019YFB1310600);国家自然科学基金(U1933116)。

摘　　要：传统机场工程地基沉降监测大多采用点式传感器,难以满足机场跑道多点位、长距离、高精度监测的需求。为此,提出基于监测管的分布式光纤结构与埋设方法,对多源监测数据,利用共轭梁理论和二次积分的解析方法,得到监测点间距小于5 cm的沉降曲线。利用原地基地质情况和具体地基处理方法预测沉降,利用智能沉降仪等设备测得沉降,并对其进行验证。结果表明,使用此方法监测沉降是可行的,且更易于反映不均匀沉降的情况。Most traditional airport engineering foundation settlement monitoring adopts point sensors,which is difficult to meet the demand of high precision monitoring of airport runways at multiple points and long distances.To this end,this paper proposes a distributed fiber optic structure and burial method based on monitoring tubes.For multi-source monitoring data,the settlement curve with monitoring point spacing less than 5 cm is obtained by using the conjugate beam theory and the analytical method of quadratic integration.The results show that it is feasible to use this method to monitor settlement and easier to reflect the uneven settlement situation.

关 键 词：机场跑道 共轭梁法 分布式光纤 沉降监测 

分 类 号：V351.11[航空宇航科学与技术—人机与环境工程]