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Application of high-strength backfill at the Cannon Mine
| Content Provider | Scilit |
|---|---|
| Author | Brechtel, C. E. Hardy, M. P. Baz-Dresch, J. Knowlson, J. S. |
| Copyright Year | 2021 |
| Description | High-strength backfilling in the B-NORTH Zone at the Cannon Mine is being used in sublevel bench-and-fill mining of gold ores. The high strength backfill is required to minimize surface subsidence and to provide safe operating conditions during pillar mining between backfill pillars that are carrying portions of overburden weight. Pillar recovery between the backfill pillars has been very successful. Undercutting of the B-NORTH Zone between July, 1987 and November, 1988 has resulted in measured backfill stresses of 2.28 MPa, or 68 percent of full overburden weight. Low water content and high proportions of coarse aggregate allow in-place strengths of 5.66 MPa to be achieved, with cement contents between 5 and 6 percent. Book Name: Innovations in Mining Backfill Technology |
| Related Links | https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9781003211488-15&type=chapterpdf |
| Ending Page | 117 |
| Page Count | 13 |
| Starting Page | 105 |
| DOI | 10.1201/9781003211488-15 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2021-07-07 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Innovations in Mining Backfill Technology Mining and Mineral Processing Pillars Cannon High Strength Backfill Stresses Percent Overburden |
| Content Type | Text |
| Resource Type | Chapter |
