Real-time drill monitoring and control using building information models augmented with 3D imaging data

• A framework for developing real-time monitoring systems is presented.
• The framework is applied for placing embeds into reinforced concrete decks.
• 3D imaging technologies are used to map the locations of rebar.
• Zones safe for drilling are automatically detected and saved as a BIM.
• Experimental results highlighted potential of real-time monitoring systems.

The problem of placing embeds into existing reinforced concrete structures without damaging reinforcement bars is an industry-wide challenge for the construction industry. This paper presents research that investigated real-time monitoring approaches for hazardous engineering processes. A conceptual solution for processing and incorporating point cloud data obtained from 3D imaging technologies1 into the drilling process in was developed. The 3D imaging technologies were used to map the locations of rebar within a section of a railway bridge deck. Once the point clouds were processed, zones which are safe for drilling were automatically detected and saved as a Building Information Model (BIM). The BIM was used to provide real-time feedback to the drill operator about whether it is safe to continue drilling based on the position and orientation of the drill. The results showed the feasibility of real-time feedback for improving the safety, productivity, and quality of engineering processes by helping avoid the time and cost of rework.