Bridge

Modern large-scale bridge is an important node of the main traffic road, which has a great influence on the development of transportation. In the long-term use of the bridge, due to environmental erosion, material aging and increasing traffic volume and the increasing number of heavy vehicles and overweight vehicles crossing the bridge, the bridge structural damage and functional degradation are caused. As a result, the ability to resist natural disasters and even normal environmental effects is reduced, leading to disasters and accidents in extreme cases, causing heavy casualties and property losses. Automatic monitoring and diagnosis of bridge structure performance, timely damage assessment and safety warning have become the inevitable requirements of future bridge construction.

Tunnel

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.

Landslide

In recent years, with the continuous progress of scientific and technological means and the continuous improvement of information technology, disciplines cross each other and penetrate deeper and deeper. Slope prevention and control work, especially slope monitoring, has developed from traditional and simple manual measurement of steel ruler, caliper and other tools to single geodetic measurement and leveling measurement to real-time monitoring of the hidden danger point, in order to find out the change and deformation signs of the slope in time, grasp the occurrence and development trend of the slope, adopt wired and wireless transmission technology, carry out long-distance automatic collection, transmission and analysis service platform data processing of the information obtained from instrument monitoring, and release early warning information in time, so as to take effective prevention and control measures before and after the disaster, Minimize or avoid the loss of people's life and property caused by slope.

Railway

The construction and planning of high-speed rail, subway and other rail transit are being carried out on a large scale throughout the country, and the implementation of the rail transit structural health automation monitoring system is convenient for enterprises and safety supervision departments to quickly grasp the latest developments of technical indicators closely related to project safety, which is conducive to timely grasp the operation and safety status of the project. Collect monitoring data, record the rectification plan, systematically organize and accumulate data, timely grasp the structural health status of existing projects under construction or already built, and constantly sum up experiences and lessons, which can provide a reliable basis for disease treatment and reference for future related engineering design, construction, operation and maintenance units.

Deep Excavation

With the rapid development of the city, the buildings are longer and higher, and the safety of the essential foundation pit project has always been a special concern of the public. However, in recent years, the foundation pit engineering accidents continue, mainly for the destruction of the enclosure structure, foundation pit collapse and large-scale landslides, foundation pit around the road cracking and collapse, adjacent underground facilities displacement and destruction, leading to the construction (structure) building cracking and collapse, resulting in a significant loss of life and property. According to statistical data, it is found that almost all foundation pit accidents are directly related to poor detection or inaccurate prediction of dangerous situations. If we can carry out effective safety monitoring of the foundation pit enclosure structure, so as to give an assessment of the health status of the foundation pit enclosure structure, and give an early warning before the disaster, it will greatly reduce the occurrence of accidents.

Mine

The Opinions of the State Administration of Work Safety on Strengthening the Construction of the Safety Supervision Support System for Non-Coal Mines (Safety Supervision Manager -2009 No. 204), and the State Administration of Work Safety and the State Flood Control and Drought Relief Headquarters on Doing a Good Job in Mines, Tailings The requirements for the construction of the mine safety monitoring system are also particularly emphasized in documents such as the Notice on Work Safety in Flood Season such as the Tailings Reservoir.