Smart Execution: Digital Integration and Quality Control for Diaphragm Wall and Barrette Delivery-PPT Presentation

PPT Presentation

Pdf Summary

The presentation describes an integrated, digitally supported approach to delivering diaphragm walls and barrettes on two major infrastructure projects in Melbourne and Sydney. Across approximately three kilometres of wall, panels were 1.0–1.2 metres thick and excavations reached 45 metres in depth. Variable soils, rock, groundwater, weak zones, heavy reinforcement cages and constrained urban sites made execution high risk.<br /><br />Risk-informed planning used PLAXIS 3D modelling to assess ground behaviour and potential failure mechanisms, guide excavation and slurry requirements, and set plant setback distances. During excavation, an in-house tracking system and B-Tronic equipment recorded productivity, depth, verticality and excavation rate. Engineers reviewed the data daily, while settlement and deflection monitoring helped identify deviations and changing ground conditions early. Bentonite properties were regularly checked to maintain trench stability.<br /><br />Constructability and quality were addressed through 3D reinforcement-cage modelling in Tekla and Trimble, enabling clash detection and advance planning of cage sections, lifting points and installation. Digital verification, QR tagging and connection systems supported fabrication compliance, traceability and accurate on-site assembly. Concrete pours were coordinated and monitored in real time, with displacement curves used to assess quality and respond to variations.<br /><br />A Power BI dashboard brought together project information on volumes, equipment use and productivity, improving visibility, coordination and decision-making. The central lesson is that digital tools are most valuable when integrated across planning, excavation, installation and quality assurance. This supports safer, more controlled and efficient execution.

Keywords

diaphragm walls

barrettes

Melbourne infrastructure

Sydney infrastructure

PLAXIS 3D

B-Tronic

Tekla

Trimble

Power BI dashboard

ground monitoring