摘要
大跨度隧道下穿机场跑道施工时,跑道沉降控制是决定工程成败的关键因素。由于跑道不允许人员进入,如何对跑道与隧道间的土体进行数据采集成为难题。本文通过对点式光纤光栅传感器的二次开发,将其封装成长标距FBG(Fiber Bragg Grating)应变传感器,成功地解决了此问题,取得了良好的社会和经济效益。
When the super-large cross-section tunnel passes through the airport runway,the runway subsidence control is the key factor that determine success or failure of the project.Because staves are not permitted to enter the runway,how to effectively collect the soil data between the runway and the tunnel is the challenge.Through the secondary development of the fiber optic sensor,it is packaged as a long distance strain sensor FBG（Fiber Bragg Grating）,which successfully solves the problem and achieves a favorable social and economic benefits.
出处
《铁道建筑》
北大核心
2016年第11期111-113,共3页
Railway Engineering
关键词
点式光纤
监测
机场跑道
沉降
SOFO（Surveillance d＇Ouvragespar Fibres Optiques）
Monitor
Airport runway
Subsidence
