These are elements used for retaining and stabilising the limit of excavations on hillsides, slopes and areas of soil susceptible to sliding, when necessary for provisional or permanent requirements.
SITE Canada can perform the installation of both systems, strand anchors tiebacks usually in temporary shoring solutions and high strength capacity Thread bars ground anchors in permanent structures.
For implementation of all the above work we have medium and large capacity hydraulic and pneumatic drilling equipment, as well as reduced size equipment, and for performing work at heights from suspended cages when will be not possible to create a working platform.
Used in passive retaining systems or soil-nailing, in order to stabilize hillsides, slopes with high risk of sliding due to project excavations and to stabilizing the excavation in fractured rock layers.
Sometimes self-drilling solutions can be used taken the permanent threadbar as the drilling rod and using a poor cement mix as a washing fluid for remove the spills and debris from the borehole.
Sometimes for stabilizing hillsides or slopes and large areas susceptible to landslides during excavations is necessary to combine more than one system or technique.
Soil Nailing comes from the combination of the installation of nails with other complementary techniques such electro-welded wire mesh installation, sprayed shotcrete, or California drains installation.
Wire mesh can be take as an isolated technique as a Flexible support systems, once in some circumstances we don’t need to retain the slope but rather guide the sliding small rock debris to fall inside the slope limit and avoid any chance to reach road or urban areas.
In these cases we simply use triple torque meshing, networks of cables where the purpose is to retain large rocks, dynamic barriers, etc.