摘要
京雄城际铁路机场隧道面临不均匀沉降以及地面异常入侵等风险,为了更加迅速、直观地了解隧道结构全生命周期的安全及健康状态,需要对其进行实时在线监测。将光纤传感技术应用于京雄城际隧道的结构健康监测工作中,先结合BIM技术对高铁隧道的分层沉降、衬砌环向应变、渗漏水、火灾、异常侵入、变形缝变形等多参量开展智能化、高精度监测技术研究;再结合相应评估指标与预警阈值构建基于多参量传感技术的高速铁路隧道形位感测管理平台展示系统。该系统集数据采集、监测预警、安全评估以及可视化展示于一体,能够实时反映隧道所处的安全状况,为高铁隧道安全运营提供有力保障,并为“智能京雄”工程提供强有利的技术支撑。
The Beijing-Xiong′an intercity railway airport tunnel is facing the risk of differential settlement and abnormal ground invasion.For an easy and intuitive understanding of the safety and health status of the tunnel structure throughout the entire life cycle,real-time online monitoring is essential.Herein,an optical fiber sensing technology is employed to monitor the structural health of the Beijing-Xiong′an intercity tunnel.Based on building information modeling technology,intelligent and high-precision monitoring is conducted on the multiple parameters of the high-speed railway tunnel,including layered settlement,lining circumferential strain,leakage,fire,abnormal intrusion,and deformation joint deformation.A display system for the shape and position sensing management platform for the high-speed railway tunnel based on a multiparameter sensing technology is developed according to the corresponding evaluation index and early warning threshold.The system integrates data acquisition,monitoring,warning,safety assessment,and visual display,which can reflect the safety condition of the tunnel in realtime,thus ensuring a safe operation of the high-speed railway tunnel and a strong technical support for the"Jing Xiong"project.
作者
叶少敏
YE Shaomin(China Railway Design Corporation,Tianjin 300308,China)
出处
《隧道建设（中英文）》
CSCD
北大核心
2021年第7期1141-1149,共9页
Tunnel Construction
基金
中国铁路总公司科技研究开发计划(P2018G004)
中国铁路设计集团有限公司科研项目(7218106)。
关键词
京雄城际隧道
形位感测
建筑信息模型(BIM)
光纤传感技术
多参量
监测系统
Beijing-Xiong′an intercity railway tunnel
deformation monitoring
building information modeling
optical fiber sensing
multiple parameters
monitoring system
