Currently, research on the mechanical behavior of deep foundation pit support structures is still in the exploratory phase. This results in discrepancies between pre-calculation assumptions and actual conditions, leading to inaccurate predictions of structural deformation. Such inaccuracies pose safety risks to project execution and hinder effective cost control during construction. Therefore, continuous monitoring of relevant data throughout the project lifecycle is essential.
At present, safety monitoring data for deep foundation pits is typically presented as reports combined with 2D graphics. This format prevents on-site engineers from viewing forces or deformations holistically, making it difficult to understand the overall deformation patterns. Experienced engineers may detect and address potential hazards promptly, but non-experts often struggle to make timely judgments, which can delay construction decisions and cause significant project losses.
Integrating BIM technology with existing monitoring systems can revolutionize this process. By creating a BIM model that represents the overall shape of the deep foundation pit, its retaining structures, surrounding environment, and predefined monitoring points (e.g., stress, displacement, settlement sensors), real-time monitoring data can be imported. Using 4D simulation and deformation cloud mapping, all project stakeholders can visualize the support system’s deformation status more intuitively.
This integration enables the fusion of key node monitoring data with the BIM model, allowing for virtual reality monitoring throughout the construction process. Engineers can predict maximum imminent deformations based on force and deformation data, facilitating early warnings of potential safety hazards and enabling timely contingency planning.
Furthermore, combining this data with other monitoring inputs such as groundwater level fluctuations, nearby road settlements, underground pipeline shifts, and building deformations helps on-site engineers analyze the root causes and critical factors behind any dangerous conditions. This comprehensive approach supports proactive risk prevention and control measures, ultimately minimizing hazards during construction.
The Integration of AR Technology and BIM Technology
Augmented Reality (AR) technology enhances users’ perception of the real world by overlaying computer-generated information. By simulating real deep excavation scenarios, AR allows on-site engineers to view both the actual environment and augmented data through portable devices like smartphones and tablets.
Using a 3D BIM construction model developed during early project stages, engineers no longer need to sift through multiple monitoring charts on-site. Instead, they can use the AR functionality on their devices to observe key monitoring results—such as groundwater level changes, localized support system deformations, and municipal pipeline shifts—directly overlaid onto the real-world view. These critical monitoring points are often difficult to identify visually in the field.
The combined use of BIM and AR technologies in deep foundation pit projects provides on-site managers with a clear, detailed understanding of structural deformations, enhancing safety management and decision-making.
The Integration of Google Glass Technology and BIM Technology
Google Project Glass, an AR-based smart glasses device, integrates functionalities such as intelligent communication, satellite navigation, and photography. It displays real-time information and allows users to perform various tasks hands-free, simply by using their eyes and voice.
On-site personnel can capture photos of critical construction progress and instantly transmit them to designated locations. They can communicate with other project members, access 3D models anytime, monitor the support system’s stress and deformation, review key node monitoring results, and consult emergency procedures—all without manual device handling.
Compared to conventional smart tools, Google Glass greatly enhances work efficiency by enabling voice-controlled photography and video calls. By combining BIM with Google Glass, project participants can effortlessly access vital monitoring data without navigating complex charts.
Wearing Google Glass transforms traditional information monitoring, allowing real-time control over the support system’s deformation status. This integration presents monitoring results clearly and intuitively, facilitating comprehensive analysis and enabling even non-expert managers to understand the safety status of deep foundation pits and foresee potential future deformations.
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