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The use of SCPT and HVSR for site period and subsoil class estimation

ABSTRACT NZS 1170.5:2004 provides a subsoil classification system of classes A to E, which are determined by specific criteria of soil or rock characteristics. The fundamental site period, T, is a key parameter in the classification system and is particularly useful in deciding between soil…

AGS4 NZ Electronic transfer of data

The concept of transferring geotechnical data between all industry parties in electronic format is widely used internationally. As computer technology has become an integral component of the geotechnical industry, producers and users of geotechnical information have adopted digital database systems to store, manage, analyse and present their data. Currently,…

Correction for CPT fs errors due to variation in sleeve diameter

Correction for CPT fs errors due to variation in sleeve diameter

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…