This evaluation was performed on shoot-in or “launched” soil nails based on information provided by the Federal Highway Administration (FHWA) and Soil Nail Launcher, Inc.
The soil nail launcher, typically mounted on an excavator, uses compressed air to launch 20-foot long, 1½-inch outside diameter steel or fiberglass tubes with closed steel tips into the ground in a single blast at speeds in excess of 200 miles per hour. The tubes can then be reinforced with a steel bar and grouted to achieve maximum strength. The tubes can also be perforated and pressure grouted to allow grout permeation into the soil, improving the adjacent soil properties and increasing the soil-nail bond.
Slope stability and highwall safety are at the forefront for all open-pit mining operations. Our seasoned geotechnical engineers and highly experienced staff bring extensive and specialized expertise in resolving your geotechnical problems.