STS Soil Services

Soils
Soil samples (continuous cores) are retrieved by experienced drillers using a hydraulically powered push tube. Samples in excess of 6m in depth can be taken. Augering will be undertaken if push tube penetration meets high resistance. Furthermore, access to most sites is not normally a problem as we have the flexibilty of using hand-held equipment when required. Extensive information is provided on main site features as well as photographs. Soil is logged in accordance with the Unified Soil Classification (U.S.C) system. The soil profiles engineering properties are generally assessed using the visual-tactile method, with samples from one in 50 sites (as recommended by AS 2870-2011) being subjected to Shrink-Swell testing by an independent NATA Accredited Laboratory. All soil assessment is undertaken by suitably experienced people.