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Ingeokring Newsletter Review of the 11th ISRM Congress, July 2007, Lisbon (Portugal) Dr.ir. Robrecht Schmitz Lisbon, the city where the first conference of the International Society for Rock Mechanics (ISRM) was organised, hosted in July 2007 the 11th ISRM Congress, titled: ‘The second half century of rock mechanics’. Especially our most senior ISRM colleagues, of whom there were no few that joined the first ISRM personally, pointed out at several occasions that the founders of the ISRM would have been surprised of the dimensions, standards and world-wide reach that the ISRM attains today. Photo taken on a stroll through Lisbon. The camera was accidentally set to black and white mode (leaving you puzzled if this photo was taken during the 1st or the 11th congress). Even after 50 years of intensive academic and industrial research it is interesting to note that: 3) There is need to consolidate the knowledge gained by half a century of ISRM activity. Examples are the publication of the book ‘The complete ISRM suggested methods for rock characterisation, testing and monitoring’ presented at the conference by the Turkish national group of the ISRM as well as the set-up of a mining interest group by past president Nielen van der Merwe. 4) The diversity in presentations was very wide. Subjects covered were a.o.: underground- and surface mining, dam construction, tunnelling and slope stabilisation in virtually all rock classes. All subjects were treated very theoretically but also (fortunately) from the practitioner's point of view. The question was raised if this broad spectrum of presentations is good or if one should focus on more detailed aspects during future conferences. Summarising, one can say the organisation committee did a perfect job. The lectures started on time, changes in the programme were clearly communicated and the help offered to the lecturers to set up the presentation was excellent. Nevertheless, the old tradition of simultaneous translation should be kept in mind for following conferences since the quality of many excellent presentations suffered from a linguistic point of view. The information gained during the day was discussed with colleagues from all over the world during the coffee breaks and continued during the evening, framed by Lisbon’s excellent gastronomic setting. 1) There are still basic aspects in rock engineering that are unsolved, e.g. questions regarding the behaviour of rock mass in block caving (presentation by Prof. E.T. Brown). A very important issue, as the rush for raw materials forces an increase in production rates of underground mining activities. 2) Automation of outcrop mapping still presents challenges. The most sophisticated tools are, at present, only capable of identifying 50% of the discontinuities the trained eye/brain can recognise (presentation by Prof. Z.N. Flynn). For the long slopes in large surface mines there is no automated way to map kilometres of slopes on an automated basis (discussion during the laser scanning session). Professor E.T. Brown who attended the 1st and 11th ISRM conference was honoured this year by receiving the Rocha medal. Dam edition | Double Issue 2007/2008 | 60
Ingeokring Newsletter Excursions were organised to Portugal’s thriving marble quarrying industry and ore mining activity in the Iberian Pyrite Belt. Another excursion showed how Lisbon’s metro is extended with all challenges accompanying construction through very inhomogeneous, partly anthropogenic deposits with virtually no overburden. Literature Ulusay, R. & J.A. Hudson (2007). The complete ISRM suggested methods for rock characterisation, testing and monitoring: 1974-2006. Suggested Methods prepared by the Commission on Testing Methods, International Society for Rock Mechanics (ISRM). ISRM Turkish National Group. Ribeiro e Sousa, L., C. Olalla & N. Grossmann (eds.) (2007). Proceedings 11th Congress of the International Society for Rock Mechanics: The Second Half Century of Rock Mechanics. Taylor & Francis/Balkema, Leiden. The conference centre near Bélem next to the river Tagus. Dam edition | Double Issue 2007/2008 | 61
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