GeoStabilization International (GSI) services

GeoStabilization International typically provides design/build/warranty landslide repairs. That means that GSI engineers or representatives will provide a no-cost, no-obligation visit to any landslide. After surveying the site and gathering data, a design and guaranteed fixed-cost proposal will be submitted to the client. In emergency situations, we routinely have crews installing nails two days or fewer after a failure and often have the corridor open to traffic within the week. After construction, an optional warranty statement is issued that covers not just materials and installation, but the stability of the repaired section. With over 1200 landslides repaired to date, no other company has the experience, tools, rapid response time, or guarantee of GeoStabilization International.

Bluff Stabilization GeoStabilization International’s tools and techniques are uniquely suited for coastal and riparian zones. In extremely corrosive environments, launched fiberglass soil nails and fiberglass SuperNails can be used. These nails can be perforated to act as drains or pressure grouted with cementicious or non-cementicious materials to improve soil properties in the nail zone. Because our work typically is conducted from above, damage to sensitive areas can be avoided, and some regulatory permits may not be required.

GeoStabilization International’s excavation shoring falls into three main categories: Temporary Shoring: Launched Soil Nails can be used for temporary shoring; the application is ideal for deep cuts on congested sites. This solution uses easily-mobilized equipment and does not require extensive steel fabrication. This approach minimizes start-up time and can be faster and less expensive than traditional drilled soil nails.

GSI engineers and geologists have extensive experience with rockfall mitigation, stretching back to the 1960’s. Most famously, GSI founders Robert Barrett and Albert Ruckman rolled hundreds of rocks into experimental barriers as part of the research behind the Colorado Rockfall Simulation Program (CRSP). GSI’s specialized fleet of purpose-built limited-access rock drills, combined with our staff of engineers and rock remediation technicians, extends our design-build services to rockfall mitigation and rock slope stabilization across the continent. GSI’s rockfall remediation technicians are the most highly trained individuals in the industry, holding both S.P.R.A.T. (Society of Professional Rope Access Technicians) and P.C.I.A. (Professional Climbing Instructors’ Association) scaler certifications following the rigorous

Compaction grouting is a ground improvement technique that improves the strength and stiffness of the ground by controlled, high pressure injection of low-mobility cementicious grout. As the grout mass expands, the soil is displaced and compacted. If injected properly, the grout does not flow away from the injections zone or significantly permeate the surrounding soil. The result is a series of very stiff, bulbous grout columns surrounded by soil of increased density. Compaction grouting is used for sinkhole repair, improving soil under new or existing structures, settlement mitigation, the improvement of collapsing soils, liquifaction mitigation, and to construct foundations subjected to axial and/or lateral loads.