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Colenco Info November 2005 Enrolment in Slovenian Engineering Chamber  In connection with the execution of the Pumped Storage Scheme AVCE in Slovenia it was necessary for selected Colenco engineers working on this project to be registered in the Slovenian register of engineers. This rigorous procedure began in April 2005 and a flood of confirmations from universities, authorities, REG Swiss Register of Engineers, competent experts, with many stamps, etc. had to be established and legalized. Above all, many telephone inquires were exchanged. All documents were then translated into Slovenian and had to be accepted by numerous authorities. At the end of September 2005 our partner KORONA Power Engineering Ltd, Ljubljana, informed us, that Colenco finally received permission to be registered in the Engineering Chamber IZS. With this, ours are the first foreign engineers ever registered in the Slovenian engineering chamber. Monika Antener - Hydropower Plants Work in Progress for the Siah Bishe Pumped Storage Project in Iran (November 2005) The construction of the 1'000 MW Siah Bishe Pumped Storage Project in the Elburz Mountains north of Tehran, Iran, is well under way. The excavation of the foundation for the two concrete faced rockfill dams (height 85 m and 106.5 m) is nearing completion while the rockfill placement for the dam body and the concrete work for the plinth have already started. The work will be interrupted during the coming winter season, when temperatures below zero and a compact snow cover are expected. Underground the excavation for the 2 km long headrace tunnels, surge shafts, pressure shafts and the powerhouse and transformer caverns will continue throughout the winter season. The two 760 m long inclined pressure shafts with a final diameter of 5 m will be excavated with the raise boring method. Two raise boring equipments are presently drilling pilot holes with a diameter of 30 cm from an intermediate adit to a lower construction chamber. After the pilot holes have reached the lower level, the drill head will be replaced by a reamer head having a diameter of 2.4 m which is then rotated and pulled back up with the bore rods. The enlargement of the shafts to the final diameter of 5 m will be carried out by drilling and blasting from the top, using the pilot shafts for mucking. Since early 2003 Colenco Power Engineering Ltd. has been advising the Owner in the design review and the general site supervision for this challenging project.
Dr. Stefan Mützenberg - Hydropower Plants |
