Presented by Dick Beetham,
Principal Geotechnical Engineer & Engineering Geologist, Coffey NZ
Ruahihi and Wheao canal collapses, 1981 and 1982. These two case histories where something goes drastically wrong are pictorially described and discussed. The photo images graphically demonstrate what has happened; the lessons learnt, and steps taken for improvement are discussed. They are mostly applicable today. As geotechnical practitioners we have limited work experience and we must learn from case histories, favourable and unfavourable!
Interestingly Dick is double qualified, with both a BE Civil from Canterbury University and a BSc in geology and geophysics from Auckland University. He is also one of very few people jointly awarded as both CPEng and PEngGeol.