摘要
光纤光栅技术(FBG)是工程安全监测的一项新技术,提出了该技术应用于地铁隧道安全监测的工作思路。通过某地铁隧道沉降监测实例,探讨了光纤光栅在监测地铁隧道沉降中的可行性。研究结果显示,相比传统的精密水准测量方法,光纤光栅拥有相同等级的测量精度,在一定距离范围内可满足地铁隧道安全监测的要求。
The fiber bragg grating （FBG） technology is a new technology for engineering safety monitoring. This article presents a technology idea applying to monitoring the subsidence of subway and tunnel. According to a case of subsidence monitoring of subway and tunnel, it discusses the feasibility and technical way of subsidence monitoring in subway and tunnel by fiber bragg grating. The researching results show that the measurement accuracy is the same between the fiber bragg grating and the traditional precise leveling method, it can meet the demand of monitoring and uphold in subway and tunnel safety operation This technology will be the popularization and application prospect.
出处
《上海国土资源》
2012年第3期76-78,共3页
Shanghai Land & Resources
基金
上海申通地铁集团有限公司科研项目"轨道交通数字化监护管理系统开发"
关键词
光纤光栅
地铁隧道
沉降监测
安全监护
fiber bragg grating
subway tunnel
subsidence monitoring
security wardship
