Abstract This paper states the basic operation principles of a hydrostatic level gauge and the factors influencing monitoring accuracy in a subway tunnel during operation. Combined with a monitoring case of a hydrostatic leveling system in an operational metro tunnel during construction of a foundation pit, the monitoring accuracy of the hydrostatic level gauge during a train shutdown is contrasted with that of train normal operation in order to analyze the influence of train operation on monitoring accuracy. Meanwhile, the reliability of the hydrostatic level system is verified by comparison with the manual monitoring data. The results show that the automatic monitoring system can meet the requirements of real-time monitoring accuracy for subway tunnel deformation during operation.
Abstract：
This paper states the basic operation principles of a hydrostatic level gauge and the factors influencing monitoring accuracy in a subway tunnel during operation. Combined with a monitoring case of a hydrostatic leveling system in an operational metro tunnel during construction of a foundation pit, the monitoring accuracy of the hydrostatic level gauge during a train shutdown is contrasted with that of train normal operation in order to analyze the influence of train operation on monitoring accuracy. Meanwhile, the reliability of the hydrostatic level system is verified by comparison with the manual monitoring data. The results show that the automatic monitoring system can meet the requirements of real-time monitoring accuracy for subway tunnel deformation during operation.
SUN Ze-Xin-1,
ZHANG Shu-Feng-2,
LIU Ning-1
.Application and Analysis of Hydrostatic Level Gauges in Deformation Monitoring of Subway Tunnels During Operation[J] MODERN TUNNELLING TECHNOLOGY, 2015,V52(1): 203-208
2015, Vol. 52 