Geoquest and subsidiary companies offer TerraNail, a highly developed, high-performance solution for installing passive soil and rock anchoring and stabilization systems.
This solution is widely specified by geotechincal engineers for builders and earthworkers to install adequate measures to ensure stability and take control of embankment soil and rock displacement, foundation instability, mass erosion, and retention facing displacements.
Slope instability and landslide risks
Space constraints
Complexity and cost of traditional stabilization methods
The in-situ installation method involves installing soil nails within an engineered pattern of closely spaced inclusions which create an in-situ coherent gravity mass structure. Installation is straightforward:
- Solid or hollow, fully-threaded and optionally coated high tensile geotechnical steel bars are driven into soil, and are then encased in grout and secured to a surface – normally fastened to a stabilized facing element.
- Hardware accessories, including nails, nuts, plates, couplers, and drill bits are furnished by Geoquest in size, shape and quantity as required by the project details.
Both, plain drilling and self-drilling nail options are available from Geoquest. The self-drilling TerraNail anchoring system is comprised of a threaded hollow bar with an attached drill bit that can perform drilling, grouting, and fastening in a single operation.
Our solution allows:
Seamless design and supply process
Performing as a geotechnical engineer, material supplier and offering installation support services gives the Geoquest solution a single-source advantages over most alternatives.
Synergistic approach
We closely match and combine our soil stabilization solutions with an established footprint for building all types of soil-structure applications.
Integrated protection
By combining TerraNail with active solutions such as drapery netting and TerraAnchors, a full range of protection and mitigation against ground displacement is possible.
Our solutions suit severall applications to: RetainCrossProtectStrengthen



