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Chemical Destressing to Alleviate Rockbursts
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Citation (Style = APA)
Singh, S. P. (1987). Chemical Destressing to Alleviate Rockbursts. Proceedings 6th International Conference on Ground Control in Mining (ICGCM) 6th
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SpreadSheed (CSV)
Singh, S. P. (1987). Chemical Destressing to Alleviate Rockbursts. Proceedings 6th International Conference on Ground Control in Mining (ICGCM) 6th
Citation Downloads
Reference Manager (RIS)
SpreadSheed (CSV)
Organization: International Conference on Ground Control in Mining
Pages: 9
Publication Date:
Jan 1, 1987
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Abstract
Abstract
| Destress blasting is commonly used in the mines to minimize the occurrence of rockbursts. The fracturing created by destressing in the vicinity of the face reduces the stress concentration by pushing the zone of high stress deeper into the rock mass. But the destressing practice by blasting may be devastating near the faults or other sensitive high stress zones. To avoid severe rockbursts in such situations, the application of chemical destressing has been proposed in this paper. A laboratory investigation was conducted on the rocks in the Sudbury basin to examine the change in the material properties with an aim of assessing the feasibility of destressing by chemical means. The favourable change observed in the rock properties led to the suggestion that the injection of surfactants in boreholes would enhance fracture propagation similar to what is currently done by blasting but in a safer, inexpensive and non-violent manner. The current destressing practices in Ontario mines have also been reviewed in this paper. |
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