Tuesday, 11 May, 2010 at 5:15 pm
The failure of Analcóllar Dam
Evening lecture by Professor Gens.
Aznalcóllar dam, a tailings dam in Southern Spain, failed catastrophically by sliding on the foundation clay. Parts of the dam moved downstream more than 50 m. The resulting spillage caused one of the worst environmental disasters in Europe threatening a major nature reserve located downstream of the dam.
The lecturer was an expert witness for the court in the judicial case that was initiated immediately after the failure. The lecture describes the investigation carried out including fi eld observations before failure, a description of the geometry and mechanism of failure as well a number of analyses of the failure and of the post-failure dynamics. Special attention is given to the causes underlying the failure that involve progressive failure and the presence of very high pore water pressures in the foundation. The lecture concludes with a summary of the lessons learnt andtheir implications for future designs.
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Venue: Pickering Room, Aurecon NZ Ltd, Level 1 Old Bank Chambers, Custom House Quay, Wellington
Date: Tuesday 11th May 2010
Time: Light refreshments from 5.15pm – for 5.45pm start
Contact: Wellington branch coordinators
David Stewart, 027 471 0837, david.stewart@opus.co.nz
Bev Curley, 027 205 8931, beverley.curley@ghd.com
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