With the in-depth implementation of the “Notice from the Guangzhou Housing and Urban-Rural Development Bureau on Strengthening the Management of Foundation Pit Monitoring for Building Engineering” (Sui Jian Zhi [2023] No. 207) (hereinafter referred to as the “Notice”), foundation pit monitoring has been fully integrated into systematic supervision. The “Notice” requires that foundation pit projects with a safety level of Class I (including environmental risk level Class I and some profiles Class I) must implement automated monitoring. Among them, the number of deep horizontal displacement points monitored automatically should not be less than 20% of the total number of measurement points, and at least 3 points; surrounding water level monitoring should be fully automated; for profiles with a safety level of Class I for support design or environmental risk level, the internal force testing items such as anchor cable axial force, support axial force, and pile wall internal force must all use automated monitoring; for each building within the excavation depth range of one times the depth, at least one inclinometer should be installed for automated monitoring.
Guangdong Provincial Institute of Building Science Research Group Co., Ltd. Engineering Monitoring and Surveying Research Institute (hereinafter referred to as the Monitoring Institute) closely follows policy guidance and has developed a series of automated monitoring equipment for foundation pits, using technology to strengthen the safety defense line of construction.
Introduction video of the automated monitoring product series for foundation pits
From deep horizontal displacement to surrounding water levels, from internal forces of support structures to the inclination of adjacent buildings, this series of equipment (including array displacement meters, integrated water level meters, integrated string acquisition instruments, and tilt vibration meters) can achieve uninterrupted automated monitoring, with every key parameter and monitoring data under real-time control. Relying on the supporting monitoring cloud platform, it enables precise data monitoring, real-time uploading, intelligent analysis, and dynamic presentation; when data exceeds warning thresholds, alarm information can be pushed through various means to ensure early detection and handling of potential hazards; the equipment supports integration with municipal platforms, fully meeting regulatory requirements.
Top left is the array displacement meter, top right is the integrated water level meter,
Bottom left is the integrated string acquisition instrument, bottom right is the tilt vibration meter.
This series of equipment has four core advantages:
More economical, easy to install, operate, and maintain, significantly reducing labor input;
More intelligent, with a high degree of intelligent integration, capable of accurately capturing small deformations and data fluctuations;
Faster, with high monitoring frequency, real-time data transmission, and significantly improved response speed compared to manual inspections;
More reliable, with low power consumption and high-strength protection, suitable for adverse conditions such as heavy rain and high temperatures, ensuring uninterrupted data collection.
Currently, this series of equipment has been applied in multiple foundation pit engineering projects, ensuring construction safety. In the future, the Monitoring Institute will adhere to Guangdong Construction Science’s development philosophy of “innovative development, serving society,” taking on the role of a guardian of urban safety, continuously conducting scientific research and innovation in the field of engineering monitoring, and promoting the intelligent advancement of engineering safety management to a higher level.
Source: Monitoring Institute
Editor: Huang Yixuan
Reviewer: Huang Ruoling
