Project Description

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, and it is gaining popularity in many different markets.

Discover

The perfect custom-designed arch

Nearly 25 years ago, Terre Armée developed the TechSpan® precast concrete arch system.

This technology is based on the Group’s soil expertise and a finite element analysis, which paved the way for the development of this three-hinged system of two funicular curve-shaped parts.

Benefits

Reliability

Reliability

The TechSpan® system can be designed to accommodate high fills, heavy live loads, and altering loading conditions. The precast units are manufactured under strict quality control environments and tolerances and the durability of materials provide a long service life with minimal maintenance requirements.

Customization

Customization

The design of our TechSpan® arches is customized and optimized for project-specific loading conditions and geometry.

Cost-effectiveness

Cost-effectiveness

The use of inexpensive material, and a rapid and simple installation method – a crew of three or four and one crane is sufficient on most days of construction – TechSpan® structures are a very cost-effective solution.

Rapid construction

Rapid construction

TechSpan®’s precast segmental arch units simplify shipping, delivery, and installation. A self-supporting unit design and installation procedure minimizes heavy equipment usage and bracing requirements.  No scaffolding, post-tensioning or bearings are needed.

Minimal disruption to traffic

Minimal disruption to traffic

TechSpan® arches can be installed over existing roads and waterways, live rail, or other service, with minimal disruption, ensuring continuous service.

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