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Highwall design for a New Zealand opencast coal mine

✍ Scribed by D.N. Jennings; A. Bracegirdle; G. Ramsay

Publisher: Elsevier Science
Year: 1985
Tongue: English
Weight: 566 KB
Volume: 22
Category: Article
ISSN: 0013-7952
DOI: 10.1016/0013-7952(85)90035-3

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✦ Synopsis

The development stages and the highwall design of the No. 16 opencast coal mine in the Ohai coalfield are described. The factors which were considered in the design of the 100 m high batters for the mine are discussed. Of particular concern was the nature of the overburden in the highwall where old underground workings were recorded as having been pillared out. Careful consideration was given to the selection of appropriate factors of safety, representative strength parameters and piezometric conditions for design.

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