For more than 30 years, our specialized engineering teams have developed unrivalled expertise for the design of engineered solutions using precast arches and boxes. TechSpan® and TechBox™ are excellent options as proven through many tunnels and underground structures, buried bridges, box bridges and culverts built around the world.
Geoquest’s precast arches and boxes, exhibits this efficiency in design and construction of precast tunnels. Using reinforced precast concrete and a catalog of proven optimized shapes, Geoquest’s engineers’ design and manufacture the arch units based on the project’s loading and clearance requirements. With accompanying retaining walls, the result is the substantial load-carrying ability with minimal materials that provide efficient high-performance bridges, precast tunnels and other proven solutions for applications in roadways, railway, mining, military, and beyond.
Common Applications
Precast arches can be used in various contexts and sectors, and can be used as part of:
- Short span bridges
- Tunnels for roadway, railway, pedestrian, and mining site reclaim or access
- Ammunition storage facilities
- Above ground earth shelters
