Location > Services > Geotechnical

Geotechnical Drilling

In River Geotechnical, Mohikinui April '07

CW Drill has been involved in a number of drilling projects that require specific and detailed information on sub-surface ground conditions prior to large commercial and/or industrial structures being built. 

Information is collected using Standard Penetration Tests (SPT), push tube samples, Coring and Logging of bores using Logging tools and survey camera, and the installation of piezometers, and inclinometers etc.   We also have a cordless Cone Penetration Testing (CPT) testing unit (this is a 50 MPA unit with piezo cone).


Geotechnical Projects
Mataura:
A series of geotechnical boreholes for Trustpower for a proposed windfarm. 

Mokohinui:
An extensive drill programme carried out in the Mokohinui Gorge for Meridian Energy for a proposed hydro scheme.

Waihopai Valley:
Multiple coreholes drilled for proposed irrigation dam, with packer testing in rock formation. 

Pike River Coal:
Multiple bored drilled to determine strata underlying old gold workings at Ikimatua, for Pike River Coal load out facility.

Picton Foreshore Redevelopment:
Both land based and barge mounted drilling carried out.

State Highway 1:
Russley Road widening - Drilling and Perculation Testing.

Irrigation Dam:
Extensive Drill programme to access formation for possible large scale irrigation dam.  HQTT Core and Regular Lugeon Testing carried out.