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Conference Proceedings

Twelfth International Symposium on Mine Planning and Equipment Selection (MPES 2003)

Conference Proceedings

Twelfth International Symposium on Mine Planning and Equipment Selection (MPES 2003)

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Mine Sequencing for High Recovery in Western Australian Mines

Some Western Australian underground mines are challenged by very high stress gradients. This environment frequently results in poor induced ground conditions and damaging seismic activity. In some cases, rockbursting or squeezing ground has been observed as shallow as 250 m below surface. Very few mines operating at depths greater than 500 m experience no stress-related issues. As a general result of this difficult environment, there are a growing number of mines that are now challenged or have been closed by induced geotechnical problems. Often, the up-front savings or perceived advantage of an inappropriate mine plan may be entirely lost to the real cost of managing the hazards, or a write-down of reserves resulting from access difficulties will diminish the economic position of the mine. From an engineering perspective, it is best if stress-related hazards can be proactively minimised, because reactive measures offer less improvement in risk exposure. In this paper, some examples of sequencing techniques for managing difficult environments are contrasted with examples from mines where developing hazards have adversely affected production or the economic viability of the project.
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  • Published: 2003
  • PDF Size: 0.78 Mb.
  • Unique ID: P200301050

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