| Autor: |
Pusch, Roland, Weston, Richard, Knutsson, Sven |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
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| Popis: |
The scale dependence of the strength of virtually homogeneous rock is caused by the spectrum of discontinuities of different size and nature. This makes small samples significantly stronger and less deformable than larger ones. The strength reduction for larger volumes is defined and found to apply to rock volumes 500 times larger than standard samples tested in the laboratory. Recording of the creep strain in large-scale load tests show the strain rate to be strongly retarded and negligible for stresses lower than about 1/3 of the failure load. For higher stresses creep took place according to a log time law representing secondary creep that ultimately changed to tertiary creep and failure. Upprättat; 2014; 20120530 (svek) |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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