Features of phosphogypsym dump deformation development
https://doi.org/10.17073/2500-0632-2017-1-31-37
Abstract
The problems of storing wastes of chemical industry are aggravated year by year due to, on the one hand, increasing capacities of chemical enterprises and, on the other hand, strengthening of requirements for environmental protection and sustainable land use. The results of long-term geodetic studies during the formation of phosphogypsum dump of the Balakovo branch of Apatit JSC in the Saratov Region, which enabled studying the laws of development of deformation processes, caused by simultaneous manifestation of landslide displacements and subsidence of the dump surface, are presented. The reasons, mechanism, dynamics, and conditions of landslide formation on phosphogypsum dumps are considered, including the influence of the technogenic aquifer on bearing capacity of the structure base ground. The data of laboratory studies of phosphogypsum characterize it as highly compressible material with pronounced rheological properties, which predetermines the manifestation of large-scale and long-term subsidence deformations on phosphogypsum dumps. The information presented in the paper can be useful for assessing stability of phosphogypsum dumps and determining their maximum capacity.
About the Authors
N. A. Kutepova
Saint-Petersburg mining University
Russian Federation
Russian Federation
Dr. Sci. (Tech.). Chief researcher, The Scientific Center of geomechanics and mining issues.
199106, Sankt-Peterburg, Vasil'evskij ostrov, 21 linija d. 2
T. N. Korobanova
Saint-Petersburg mining University
Russian Federation
Russian Federation
Engineer, The Scientific Center of geomechanics and mining issues.
199106, Sankt-Peterburg, Vasil'evskij ostrov, 21 linija d. 2
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Review
For citations:
Kutepova N.A., Korobanova T.N. Features of phosphogypsym dump deformation development. Mining Science and Technology (Russia). 2017;(1):31-39. (In Russ.) https://doi.org/10.17073/2500-0632-2017-1-31-37
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