Description

This type of drilling is carried out to determine soil and rock characteristics and in some cases, gather information about the nature and position of the water table from particular sites. Drilling is conducted to assess potential construction sites and to confirm conditions. It is important to have the detailed information of soil and rock properties obtained from Geotechnical Drilling so that buildings or tunnels are not place on top or cut through, unstable or weak material. Geotechnical drilling precedes foundation and construction drilling: i.e.

• Buildings and storage facilities
• Factories and plants
• Dams, bridges and roads
• Wharves and civil work
• Tunnels and shafts
• Access or inspection holes
• Power Stations

Experience

Alton Drilling has completed numerous investigation drilling programs, including working on some of the country’s largest and oldest dams including, Arapuni, Karapiro and Manapouri. Much of this work involved working in either confined spaces or inaccessible remote locations. Another major project was based at an Auckland wastewater treatment plant. Over a four year period, Alton Drilling completed major concrete cutting and drilling along with site investigation and temporary and permanent dewatering of the complex.