Project Description

Easy and quick to construct and providing substantial load bearing capacity, our precast concrete arch (TechSpan®) and box (TechBox™) are a great solution for a variety of structures, such as single or multi-span bridges, vehicle, pedestrian or wildlife underpasses, conveyance or mining site reclaim tunnels, culverts, and above-ground buried shelters.

Resistant to fire, lightning, and explosions, TechSpan® arches, pre-approved by major Defence agencies, are regularly designed for ammunition storage bunkers and aircraft housing at military installations.

Related techniques

TechSpan®

TechSpan®

Resulting from decades of research and development, TechSpan® is a buried precast concrete arch system designed to accommodate high fills, heavy live loads, and alternating loading conditions. With a small footprint and easy and quick to install, TechSpan® is ideal for mining, industrial, and railway applications, it is gaining popularity in many different markets. See the many uses of our precast arch system.
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TechBox™

TechBox™

TechBoxTM consists of precast box elements used to build a structure under backfill. It allows rapid on-site regulated installation. The soil cover required in TechBox™ structures is lower than for arch structures.

Reinforced Earth®

Reinforced Earth®

Our flagship technique, Reinforced Earth®, is based on the principle of the friction between soil and reinforcements creating a permanent and predictable bond. At the origin of all mechanically stabilized earth (MSE) walls on the market today, we are continuously perfecting this simple, yet ingenious technique.

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