Underground mine backfilling in Australia using paste fills and hydraulic fills

Sivakugan, Nagaratnam, Veenstra, Ryan, and Niroshan, Naguleswaran (2015) Underground mine backfilling in Australia using paste fills and hydraulic fills. International Journal of Geosynthetics and Ground Engineering, 1 (2). pp. 1-7.

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Abstract

Underground mine backfilling is a form of ground improvement that has to be carried out in the mine sites. The backfilling provides ground support and regional stability, thus facilitating ore removal from nearby regions. The large underground voids created by the ore removal are backfilled with the waste tailings in the form of paste fills, hydraulic fills, and others. The tailings are placed in the form of slurry that undergoes self-weight consolidation. A small dosage of binder is added to paste fill and cemented hydraulic fill to enhance strength. Considering the high cement cost, mines are using fly ash and slag to partially replace cement with blended cements. This paper gives a practical overview of underground mine backfilling in Australia using paste fills and hydraulic fills. The mining methods and different types of backfills are briefly discussed, with major focus on paste fills and hydraulic fills.

Item ID: 38966
Item Type: Article (Refereed Research - C1)
Keywords: mining, backfilling, hydraulic fills, paste fills
Additional Information:

A version of this publication was included as Chapter 2 of the following PhD thesis: Niroshan, Naguleswaran (2018) Cemented paste backfill modification using different types of binders and insight into its mechanical, micro-structure, and flow properties. PhD thesis, James Cook University, which is available Open Access in ResearchOnline@JCU. Please see the Related URLs for access.

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ISSN: 2199-9279
Date Deposited: 04 Jun 2015 03:18
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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