Tunnel
1. Monitoring Background
my country has a vast territory and a complex geographical environment. Because tunnels can shorten mileage, protect the environment, improve alignment, and improve railway traffic conditions, modern high-speed railways, highways, urban rail transit, etc., encounter complex terrain and geological conditions, and mostly use tunnel construction. The tunnel is a hidden underground project, the underground geological conditions are complex, there are many potential, unpredictable geological factors, belong to the linear project, some of the scale is large, can be as long as several kilometers and dozens of kilometers, often through many different environmental airspace and time domain, the engineering conditions are often more complex, sometimes the environment is very harsh, a little bit less, it will cause collapse, subsidence, sudden mud and water, deformation of supporting structure, personnel and equipment injury, etc., which will seriously affect the safety of the tunnel. In order to ensure the safety of tunnel engineering, timely forecast dangerous situation, so the tunnel engineering safety and stability of the state of monitoring and evaluation is very important, mainly through monitoring means to understand the operation of the tunnel, the establishment of the monitoring system of tunnel engineering monitoring, evaluation and prediction to seek advantages and avoid disadvantages, has become an urgent need for the development of modern tunnel engineering.
2. System Overview
The tunnel online monitoring system provides targeted monitoring solutions for the important and difficult problems in the whole life cycle of the tunnel, and protects the safety of tunnel construction and operation.
Main monitoring contents
Monitoring basis
Technical Code for Construction of Highway Tunnel JTG/T 3660-2020
Technical Code for Construction Monitoring of Highway Tunnels (draft for comments)
Technical Specification for Urban Tunnel Maintenance DB41/T 1271-2016
Technical Specification for Monitoring and Measurement of Railway Tunnel Q/CR9218-2015
Technical Specification for Maintenance of Highway Tunnel JTG H12-2015
JTGF60-2009 of Technical Specifications for Construction of Highway Tunnels
TB10121-2007 of Technical Regulations for Monitoring and Measurement of Railway Tunnels
System function
Data big screen
Customized data large screen to meet the different needs of customers, showing different data information.
real-time monitoring
24 hours uninterrupted real-time monitoring.
Data alarm
According to the different range of monitoring and control indicators, the early warning is divided into three levels for monitoring process management, and the monitoring data is compared with the three-level early warning value to determine the monitoring and early warning level of the site. And through the platform, SMS and email to notify the relevant responsible person.
Data analysis
Including comparative analysis, correlation analysis, time domain analysis, frequency domain analysis and other analysis methods.
Patrol inspection and maintenance
Make patrol inspection plan, record, repair and maintain the diseased parts.
Report generation
Users can set different report generation rules based on customized report templates and general report templates, and automatically generate their own monitoring data reports.
Security Assessment
Combined with the inspection record data, monitoring data and detection data, the weight of different parts of the structure is scored, and finally the overall safety score of the structure is obtained.
