At approximately 2:10 a.m. on May 1, 2024, a road collapse accident occurred on the Guangdong Meida Expressway, causing heavy casualties. This expressway road collapse accident has aroused public thinking about road safety risks and sounded an alarm for the industry. How to detect, prevent and handle similar incidents early through road slope monitoring technology has become a widely discussed topic in related industries recently.
The formation of road slopes is an important engineering measure taken during highway construction to adapt to terrain, maintain subgrade stability and ensure driving safety. Common types of slopes include subgrade slopes and mountain slope protection. These slopes are affected by various factors such as geological disasters, foundation settlement, natural rainfall and gravity rolling, leading to disaster accidents like subgrade subsidence and slope collapse, which seriously threaten the lives and property safety of road users.
The highway slope monitoring and early warning system is a comprehensive monitoring system that integrates high and new technologies such as structural analysis and calculation, computer technology, communication technology, network technology, and sensor technology. It can realize functions including surface displacement monitoring, deep displacement monitoring, crack displacement monitoring, rainfall monitoring, and soil monitoring. As a professional online real-time monitoring system for comprehensive slope safety, this system has achieved digitalization and networking of slope monitoring.
The dynamic monitoring system for slope monitoring uses high-precision and high-reliability monitoring sensors to effectively monitor slope stability. The monitoring data reflects factors that may lead to slope instability, including slope surface displacement, cracks, and rainfall. It determines monitoring and early warning thresholds, and establishes control values specified in designs and standards—such as deformation amount and change rate. The monitoring data is combined with macroscopic deformation and failure signs for comprehensive judgment to confirm the safety of the slope structure, and monitor the bearing capacity, operating status, and durability of the supporting structure, so as to meet the requirements of safe operation.
Based on Beidou high-precision positioning technology, the system conducts all-round monitoring of the slope surface and interior, supporting structures, and surrounding environment by using a variety of monitoring equipment, including Beidou receivers, new multi-point deformation monitors, multi-dimensional monitors, crack gauges, rain gauges, and AI video domes. It realizes 24-hour automatic monitoring and early warning, and supports the intelligent management and maintenance of highway slopes.
█ Real-Time Monitoring: The highway slope monitoring and early warning system can monitor changes of highway slopes in real time, including surface displacement, slope inclination, underground horizontal displacement, and soil moisture content. Through the collection and transmission of real-time data, potential slope stability issues can be detected in a timely manner, and preventive measures can be taken in advance to avoid disasters.
The highway slope monitoring and early warning system can conduct monitoring around the clock, without being affected by weather or the environment. Even under severe weather conditions, the system can operate normally and provide accurate monitoring data.
Through the Internet of Things (IoT) technology and remote transmission system, remote monitoring of landslide cracks can be realized, which reduces the workload and risks of manual inspection.
The highway slope monitoring and early warning system can analyze and process the large amount of collected data, identify the trends and patterns of slope changes, and predict potential disaster risks. Through data analysis, it can provide a scientific decision-making basis to guide the management and maintenance of slopes.
█ Video Monitoring:By selecting a device or an area, the list will display all the videos captured by that device or all devices under the selected area. Queries can be made by type, such as manual capture or alarm, and also by device code. As shown in the figure below.
The highway slope monitoring and early warning system is equipped with an early warning function. When the monitoring data exceeds the preset safety threshold, the system will automatically issue an alarm and provide early warning information, notifying relevant personnel to take timely measures to prevent the occurrence of disasters.
█ Emergency Plan Handling:Corresponding handling methods are directly extracted from the expert database, and measures such as personnel intervention and road blockage are taken in a timely manner to eliminate potential safety hazards in the bud.
The highway slope monitoring and early warning system can strongly safeguard the safety of transportation infrastructure and ensure the safe and smooth operation of road networks, especially expressways and national/provincial trunk highways. This is crucial for maintaining national economic development and meeting people's livelihood needs.
In addition, an efficient and reliable slope monitoring and early warning mechanism can significantly enhance the public's confidence in road safety, reduce panic caused by uncertainties and unexpected incidents, and improve the overall sense of security and well-being of society.
