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Conference Proceedings

Ground Movement and Control Related to Coal Mining, Wollongong

Conference Proceedings

Ground Movement and Control Related to Coal Mining, Wollongong

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Subsidence and Strata Control Under Stored Waters in the Southern Coalfield New South Wales

A significant part of the reserves of the Southern Coalfield lie beneath major water storages and their impounding dam structures._x000D_
One of the functions of the NSW Government's Dams Safety Committee is to specify the particular mine layouts which can be used beneath the stored waters according to certain guidelines. A study was made of examples of the two different methods of extraction used under the stored waters as proposed by the mining company according to the guidelines and approved by the Dams Safety Committee. Using both pillar monitoring and mathematical modelling approaches it was shown that the recovery of coal from these layouts could be improved while still ensuring the long term stability of both the underground support pillars and the body of the strata. The integrity of the water storages and their impounding structures would therefore not be Affected.
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  • Subsidence and Strata Control Under Stored Waters in the Southern Coalfield New South Wales
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  • Published: 1986
  • PDF Size: 1.153 Mb.
  • Unique ID: P198603029

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