tailieunhanh - Triple Bottom Line Risk Management_5

Tham khảo tài liệu 'triple bottom line risk management_5', kinh doanh - tiếp thị, quản trị kinh doanh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | __10_ Project Selection Mining Papua New Guinea This case study will look at the Iterative nature of the risk management process and its benefits Application of the RISQUE method to a large very complex project Selection of the expert panel Use of differing modeling techniques Project selection on the basis of total cost including risk cost Project selection on the basis of benefit-cost ratio including risk cost Significant advantages in addition to the modeled outcomes provided by the RISQUE method Background This case study examines the risk assessments performed for the Ok Tedi coppergold mine which is located in the Star Mountains in the Western Province of Papua New Guinea PNG and is operated by Ok Tedi Mining Limited OTML . Environment The Star Mountains region is one of the wettest places on earth receiving around 40 feet ft 12 m of rain annually. The open-pit operation is located at an elevation of approximately 5 000 ft 1 500 m in the headwaters of the Ok Tedi Ok means river in the local language a tributary of the Fly River. For most of its 105-mile 170-km length the Ok Tedi is typified as a steep braided river. Approximately 30 miles 50 km upstream of its confluence with the Fly River the riverbed gradient reduces dramatically the bed sediments change from predominantly gravel to sand and the form of the river changes to an incised 137 138 Project Selection Mining Papua New Guinea meandering single channel within a large floodplain. From the confluence the Fly River meanders a further 500 miles 800 km before disgorging into the Gulf of Papua. With an average water discharge of approximately 210 000 cubic feet per second ft3 s 6 000 m3 sec the Fly River is one of the world s largest rivers comparable to the Yukon and Columbia rivers in North America 250 000 ft3 s and 235 000 ft3 s respectively and the Danube in Europe 230 000 ft3 s . It also carries a considerable natural sediment load discharging .