Background

Taipei City has had several major road collapses caused mainly by construction work. To prevent such accidents, this project follows Taipei’s guidelines for protecting public facilities during building construction. It focuses on inspecting underground voids around roads near new construction sites.

Objectives

Establish a two-stage ground-penetrating radar (GPR) inspection: before construction staking and after project completion to ensure road safety.

Use high-resolution geophysical techniques combined with geological data and expert analysis to deliver comprehensive inspection reports.

Approach

GTE has extensive experience conducting GPR inspections for many construction projects in Taipei, both before and after construction. Using advanced, non-destructive array GPR technology with multiple antennas, we scan roads, sidewalks, storm drains, and public facilities up to 3 meters deep.

This allows us to accurately detect underground utilities, box culverts, and voids, quantify voids, assess risks, and pinpoint potential hazard zones. Our results help project owners establish early-warning and repair plans, effectively reducing road-collapse risks and ensuring safety around new developments.