The BeijingXiong′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, realtime online monitoring is essential.
Herein, an optical fiber sensing technology is employed to 〖JP2〗monitor the structural health of the
BeijingXiong′an intercity
tunnel. Based on building information modeling technology,〖JP〗 intelligent and highprecision monitoring is conducted on the multiple parameters of the
highspeed 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 highspeed 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 highspeed railway
tunnel and a strong technical support for the "Jing Xiong" project.
YE Shaomin
. Application of Deformation Monitoring System in
BeijingXiong′an Intercity Railway
Tunnel Based on Multiparameter Optical Fiber Sensing Technology[J]. Tunnel Construction, 2021
, 41(7)
: 1141
-1149
.
DOI: 10.3973/j.issn.2096-4498.2021.07.007
