Slope monitoring

1.Slope monitoring background

For a long time, the safety monitoring technology of slopes in my country has been a weak link in highway construction. Due to the lack of systematic research on safety monitoring technology and the lack of mature experience for design departments to apply, they can only use the protection technology of low-grade highways or learn from the experience of other departments to implement local protection. Lack of comprehensive consideration has caused huge economic losses and adverse social impacts, and some even interrupted traffic. The state and local governments have made specific regulations on the health monitoring of slopes. For example, Article 3, Paragraphs 1 and 2 of the Interim Regulations on Slope Management of Open-pit Coal Mines stipulate that slope management work is included in the agenda of safety supervision and is responsible for business security. According to the annual plan and design and the decisions and measures on slope stability, arrangements are made and supervision and inspection are carried out in the safety inspection work.

2. Overview of Slope Monitoring System

In recent years, slope safety incidents have occurred frequently. In order to timely understand the operation of the slope and give early warning of sudden accidents, slope safety monitoring is imminent! Our company's slope online monitoring system can continuously monitor the surface displacement of the slope, the internal displacement of the soil, rainfall, soil moisture content, water level changes, etc. in real time, judge the overall stability before the disaster occurs, and quickly make early warnings and forecasts of disasters.

3. Main monitoring contents of Slope monitoring

1. Environmental monitoring: rainfall, soil moisture content

2. Deformation monitoring: including surface displacement, internal displacement of soil, relative displacement of the ground surface, and ground cracks

3. Retaining wall monitoring: lateral pressure, tilt monitoring, etc.

4. Groundwater monitoring: pore water pressure monitoring

5. Support structure monitoring: anchor axial force, anchor cable stress, anti-slide pile inclination, lattice stress

6. Video monitoring: Camera

IV. Slope monitoring project list

5. Slope monitoring basis

"Slope Engineering Investigation Specification YS/T 5230-2019"

Technical Specification for Building Slope Engineering GB50330-2013

Geotechnical Engineering Monitoring Specification YS5229-96

《Landslide Prevention Engineering Investigation Specification DZT0218-2006》

6. Slope monitoring implementation function

1. Display of monitoring data throughout the entire life cycle: The system integrates the monitoring data of slope construction, performs automatic online monitoring of slope deformation and environment during operation, and performs data storage and analysis to achieve monitoring of the entire life cycle of the tunnel;

2. Data display during operation period: In addition to conventional data storage, report download and data display, the system uses BIM+GIS and aerial survey technology to display the three-dimensional model of the slope and the relevant monitoring content and numerical changes;

3. Graded warning: Set different warning levels as required. When data is abnormal, the warning information will be automatically triggered according to the settings, including platform push, SMS and email notifications to the corresponding person;

4. Accumulate slope status data: provide necessary decision-making basis for long-term operation, maintenance, repair and reinforcement of slopes, and provide basis for safety status assessment of slopes after emergencies;

5. Provide reference basis: verify the design and construction theory and construction technology of the slope, so as to improve the technical regulations for slope design and construction under relevant geological conditions and ensure the safety of slope use.