ABSTRACT

The Snowy 2.0 pumped storage project in Australia is situated within a complex alpine geological and hydrogeological setting which entails significant geotechnical uncertainties for sub-surface construction. To address this condition, a Geotechnical Baseline Report (GBR) has been incorporated in the construction contract of underground works to stipulate the allocation of geotechnical risks between the Parties. This paper outlines the conceptual framework used in the preparation and development of this GBR and associated risk-sharing mechanisms.