Samsen Road Subsidence Outside Boon Rawd Brewery: Subsurface Challenges and Proactive Survey Solutions via GPR
BANGKOK — A sudden road subsidence occurred on Samsen Road outside Boon Rawd Brewery Co., Ltd. in early September 2026, within the construction zone of the Metropolitan Waterworks Authority’s (MWA) pipeline installation project. Authorities immediately secured the site and carried out urgent road repairs to ensure public transit safety.
From a geotechnical engineering perspective, road collapses in utility construction zones are often triggered by soil density shifts, water seepage, or incomplete compaction. These factors can form undetected "underground voids" beneath the pavement that remain invisible from the surface.
Risk Mitigation via GPR (Ground Penetrating Radar) Technology
To reduce sudden collapse risks and proactively address subsurface hazards, Non-Destructive Testing (NDT) solutions such as Ground Penetrating Radar (GPR) provide essential engineering insight:
- Underground Void Detection: GPR transmits electromagnetic waves below the pavement to generate cross-sectional subsurface images, enabling engineers to identify voids, moisture accumulation, or loose soil zones before collapse occurs.
- Underground Utility & Subsurface Surveying: Maps existing pipe networks, utilities, and subsurface structures while evaluating soil conditions to prevent accidental strikes and minimize impact on surrounding infrastructure during excavation.
EJEC Thailand: Supporting Safe & Resilient Infrastructure
Leveraging our expertise in Infrastructure Inspection & Maintenance, EJEC Thailand provides advanced engineering survey solutions to assist public authorities and contractors in evaluating subsurface risks and proactively preventing hazards for long-term urban safety.