| Autor: |
Shapar', A. G., Krasnopol'skii, I. A., Khobotova, L. N. |
| Zdroj: |
Journal of Mining Science; September 1984, Vol. 20 Issue: 5 p371-374, 4p |
| Abstrakt: |
As a result of the investigations performed, the need for a complex approach to the study of thermal effects in rock is well founded, an approach which would permit the establishment of optimal regimes for thermal action for maximum strengthening of a rock mass.The maximum strengthening effect at T=550°C is attained without altering the crystal structure and is caused by the partial sintering of the particles because of a decrease in pore space, due to the removal of free and physically bound water as well as to the uniform grain size, i.e., the presence of a large amount of a finely dispersed clay fraction (38–77%).With thermal effects, the structural and textural features of the rocks must be considered, which will permit the determination of the expediency of their use in strengthening a rock mass. |
| Databáze: |
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| Externí odkaz: |
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