The potential for systematic variations in SPT N –values between mud rotary and sonic drilling methods has been the focus of a pilot investigation at a site that exhibited extensive liquefaction during the 22 February 2011 M 6.3 Christchurch Earthquake. In an attempt to quantify…
The major events of the Canterbury Earthquake Sequence (CES) caused significant land and building damage in Christchurch between September 2010 and December 2011. The extensive damage necessitated detailed ground investigations and liquefaction hazard assessments to inform repair and rebuild options. Relying solely on intrusive testing to provide sufficient…
The sleeve friction measurement, fs, is considered to be the least reliable of the three measurements in piezocone testing. It has been shown that the diameter of the friction sleeve in relation to the cone tip diameter has an effect on the sleeve friction measurements (fs). Testing…