Correlation analysis of microearthquakes in western Bohemia, Czech Republic : T. Jira, Publications - Institute of Geophysics, Polish Academy of Sciences, series, M, M-19(281), 1995, pp 289–295
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 166 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0148-9062
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✦ Synopsis
series M, M-19(281
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The strain softening of a granular soil under a or' # ai # cr3' condition and along a wide spectrum of paths was investigated experimentally. Strain softening was found to be pathdependent. It can take the form of shear band formation, or it can occur without the development of any non-homogeneity.
Six mining tremors (connected with rockbursts) from the Wujek coal mine area, with energies lo'-10' J, were chosen for investigation. All events caused serious and well documented damage in mining excavations and were felt on the Earth's surface. The mechanisms of these tremors were determined on th