Posted 9 years ago
Driveway Retaining Wall Pole Holes
Post Hole Drilling (Augering)
Waitakere
Site Description - combination of: roadside, cleared bush with mature surrounding trees, some roots from surrounding trees cover working area. Approx. size of working area 10m x 12m. Topographical fall over working area 3m. Geotechnical bore hole information: 200mm topsoil, Lone Kauri Formation soils, consisting of firm to hard silts and clays with undrained shear strengths of between 40 kPa and 243kPa. Background - 3m wide driveway being built from roadside over a vehicle crossing to reach...