Influence of concrete supports on bearing capacity of ore pillars under chamber mining systems
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Abstract
In recent years, in the development of valuable ores of non-ferrous and ferrous metals, development systems with concrete and solidifying backfill are becoming more and more widespread. These systems make it possible in some cases to conduct simultaneous mining of deposits by open-pit and underground methods, to preserve the surface from shearing and collapse, in other cases - to produce advanced excavation of rich ores, to extract the previously left pillars and to work fire-hazardous deposits with relatively small losses and dilution...
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References
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- Borisov A. A. et al. Universal dynamometer for measuring the mining pressure in volumetric and flat models. Technology of coal mining by underground method, No. 2, 1967.
- Dzhansugurov S. I. Chamber system of development with complete filling of the excavated space at Tekeli mine. In the collection: Application of mining systems with hardening and concrete backfilling of excavated space. CITI Cvetmet, 1967.
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