Hiway GeoStabilization was engaged as a specialist ground improvement sub-contractor to design and build five slip sites on SH1 Dome Valley. The soil nails were installed using both rope access hand drilling and our purpose-built SuperNailer machine. The original contract was for three sites, with an additional two sites added during the contract following a high degree of Client satisfaction on the first three sites. Extensive pull-out testing was undertaken on the soil nails as was UCS testing on grout samples.
Hiway GeoStabilization was the main contractor for this project, which involved the installation of over 860m of soil nails and 90m3 of shotcrete, all using rope access techniques.