I am currently researching open-pit mine reclamation strategies. Most literature focuses on push and end-dumping, but I would like to know if there are other practical backfilling methods (e.g., by elevation levels, modular terraces, or hybrid systems). Any suggestions or references would be highly appreciated!
Abdelghaffour El Mchiek This is a great topic however to provide a more meaningful response, some additional context would be helpful; there are several different backfilling scenarios, each with its own economic and technical and other considerations. Here are a few examples:-
In short, there is no one size-fits-all approach. Each site must be assessed individually based on its physical layout, mining sequence, equipment, site conditions, economic drivers etc.
Yes there are several alternative methods for open pit mine backfilling other than the conventional push/end-dumping technique such as Hydraulic Backfilling,Paste Backfilling,Rock Fill Backfilling,Cemented Tailings Backfilling,Waste Rock and Tailings Combined and Geopolymer Cemented Backfill.....
Md Mojahidul Islam I would be sold on the potential economic viability for Waste Rock and to some degree tailings backfill. Do you have examples of actual open pit mines where " Hydraulic Backfilling, Paste Backfilling, Rock Fill Backfilling, Cemented Tailings Backfilling, and Geopolymer Cemented Backfill."? I would be interested to know the economics of doing so for an Open pit mine.
Some open-pit mines use alternative backfilling methods for cost and environmental benefits. For example, Chuquicamata Mine in Chile uses hydraulic backfilling, while Cadia Valley in Australia uses paste backfilling with cement. Veladero Mine in Argentina relies on rock fill backfilling, using waste rock from the mining process. Kennecott Copper Mine in the USA explores cemented tailings backfilling, which provides stability but at a higher cost.
Md Mojahidul Islam But these are not Open pit backfill, they are underground, isn't it?
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