DESIGN AND CONSTRUCTION OF A CUT-OFF WALL IN WARM PERMAFROST

摘要

In 2002 Teck Alaska Inc. (TAK) commissioned Golder Associates Inc. (Golder) to design a Back Dam to minimize the potential for seepage at the southern end of the tailings impoundment at their Red Dog Mine zinc operation in Alaska. The Back Dam was to be designed for an elevation of 960 ft with a planned closure elevation of 986 ft and was to include provisions to reduce long-term seepage through the native materials and weathered bedrock.