Abstract
Understanding of internal structure of the technogenic rock dumps (gob dumps) is required condition for estimation of using ones as filtration massifs for treatment of mine wastewater. Internal structure of gob piles greatly depends on dumping technology to applying restrictions for use them as filtration massifs. Numerical modelling of gob dumps allows adequately estimate them physical parameters, as a filtration coefficient, density, etc. The gob dumps numerical modelling results given in this article, in particular was examined grain size distribution of determined fractions depend on dump height. Shown, that filtration coefficient is in a nonlinear dependence on amount of several fractions of rock in gob dump. The numerical model adequacy both the gob structure and the dependence of filtration coefficient from gob height acknowledged equality of calculated and real filtration coefficient values. The results of this research can be apply to peripheral dumping technology.
Highlights
IntroductionUnevenness of physical parameters (density, porosity, filtration coefficient etc.) to evolved from grain sizes segregation in dump height [1]
Using of gob dumps as filtration massifs for waste mine waters treatment is widespread at open pit mines in a major North Eurasia coal region Kuzbass
The gob dumps numerical modelling results given in this article, in particular was examined grain size distribution of determined fractions depend on dump height
Summary
Unevenness of physical parameters (density, porosity, filtration coefficient etc.) to evolved from grain sizes segregation in dump height [1]
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