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NZGS Specifications

NZGS Specifications

A clear and effective specification is an essential tool to help ensure that projects achieve the objectives desired by the client, geotechnical designer and contractor. While project-specific specifications can be useful in accurately describing the exact requirements for each project, they result in a steep…

Earthquake Geotechnical Engineering Module 3 – Liquefaction Hazards

The sequence of strong earthquakes in Canterbury in 2010 to 2011, most notably the devastating Mw 6.2 earthquake on 22 February 2011, the source of which was located within Christchurch, resulted in 185 fatalities and extensive damage to buildings and infrastructure. Liquefaction occurred on several occasions through the…

Earthquake Geotechnical Engineering Module 1 – Overview of the guidelines

These guidelines for Earthquake Geotechnical Engineering Practice in New Zealand were originated by a working group of the New Zealand Geotechnical Society. The idea for the working group came from a panel discussion ‘Geotechnical Seismic Design Standards’ which took place during the NZGS Biennial Symposium ‘Earthquakes and Urban…

Simulation of piles subjected to excavation or embankment loading

Simulation of piles subjected to excavation or embankment loading

ABSTRACT This paper provides investigation into response of (forward-rotated or backrotated) piles subjected to embankment loading, in light of 2-/3-layer models. First, recent advance is briefly reviewed concerning range of parameters used to model piles subjected to excavation and embankment loading. Second, simulations of six…

NZ Ground Investigation Specification

NZ Ground Investigation Specification

Introduction There has not previously been a standard template in New Zealand for the specification and procurement of ground investigation work, and specifications varied significantly from project to project and between organisations.  Long project specific specifications were unlikely to be fully read by tenderers (at least…

Earthquake Geotechnical Engineering Module 5a – Specification for Ground Improvement

This document has been produced in response to the Canterbury earthquake sequence that started on 4 September 2010 with the Darfield earthquake. The intention of this document is to provide guidance on what should be included in a technical specification when designing and constructing ground improvement (for liquefaction mitigation purposes)…