Ore reserve estimation: myth and reality of computer models : R. V. Ramani, K. V. K. Prasad & R. L. Frantz, Mineral Resources Engineering, 4(1), 1995, pp 15–28
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 192 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0148-9062
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✦ Synopsis
dimensional code of the Distinct Element Method used for this study, UDEC, the mechanical behaviour of rock joints is represented by an elasto-plastic law and the empirical continuous-yielding law. The modified version of the Saeb and Amadei non-linear model is implemented in UDEC. Two simple examples provided a verification of the implemented model. The influence of joint constitutive law on the stability of an underground cavity was then examined for a specific joint network geometry. This analysis involved in situ low, medium, and high stress fields. Results show that while stress magnitudes depend little on the type of constitutive law, the displacement field is, on the contrary, constitutive law dependent, particularly at high stress levels.