The Dannemora mine has been in production since (at least) 1481 until its first closure in 1992. The fact that the mine is very old, but also has been closed for some time, has influenced the infrastructure and mine planning during the earlier era of mining.
Live in-person introductory training course in Minneapolis, Minnesota. This course provides an overview of the capabilities and features in 3DEC.
Dr. Petersen has experience in the analysis and design of underground excavations for occupancy, science facilities, transit and mining.
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