Features of phosphogypsym dump deformation development


https://doi.org/10.17073/2500-0632-2017-1-31-37

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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

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

Engineer, The Scientific Center of geomechanics and mining issues.

199106, Sankt-Peterburg, Vasil'evskij ostrov, 21 linija d. 2



References

1. Galperin AM, Förster V., Chief H.-J. Tehnogennye massivy i ohrana prirodnyh resursov: Ucheb. posobie dlja vuzov: v 2 t. [Technogenic arrays and protection of natural resources: Proc. Manual for universities: in 2 tons.] – Moscow: Publishing House of Moscow State University, 2006. – Vol. 1: Bulk and Reclining Massifs. – 391 p. In Russian.

2. Ivochkina M.A. Inzhenerno-geologicheskoe obespechenie ustojchivosti otvalov fosfogipsa [tekst]: dis. kand. tehn. nauk: 25.00.16 [Engineering geological support of the stability of phosphogypsum dumps [text]: dis. Cand. Tech. Sciences: 25.00.16]. Ivochkina Maria Aleksandrovna; The National Mineral Resources University "Gorny" – St. Petersburg, 2013. – 172 p. In Russian.

3. Izuchenie fiziko-mehanicheskih svojstv gipsosoderzhashhih othodov proizvodstva fosfornoj kisloty i porod v tehnogennyh massivah «suhih» otvalov fosfogipsa s ustanovleniem ih normativnyh znachenij dlja vypolnenija raschetov ustojchivosti priobosnovanii optimal'nyh parametrov otval'nyh sooruzhenij: otchet o NIR [Study of physicomechanical properties of gypsum-bearing wastes of phosphoric acid and rocks in technogenic massifs of "dry" dumps of phosphogypsum with the establishment of their normative values for performing stability calculations for the rationalization of optimal parameters of dumping structures: report on research]. Kutepov Yu.I. – SPb: Mining University, 2012. – 93 p. In Russian.

4. Korobanova T.N. Monitoring opasnyh geodinamicheskih processov pri formirovanii otvala fosfogipsa Balakovskogo filiala AO «Apatit» [Monitoring of dangerous geodynamic processes during the formation of the phosphogypsum dump of the Balakovo branch of JSC "Apatite"]. Mining information-analytical bulletin. – 2015. – No. 4. – Pp. 405-408. In Russian.

5. Kutepova N.A. Inzhenerno-geologicheskoe obosnovanie prognoza gidrogeomehanicheskih processov pri vedenii gornyh rabot [tekst]: avtoref. dis. … d-ra tehn. nauk: 25.00.16 [Engineering-geological justification for the prediction of hydrogeomechanical processes in the conduct of mining operations [text]: author's abstract. Dis. ... Dr. techn. Sciences: 25.00.16] St. Petersburg State Mining Institute. GV Plekhanov (Technical University) – St. Petersburg, 2010. – 39 p. In Russian.

6. Meshherjakov Ju.G., Fedorov S.V. Promyshlennaja pererabotka fosfogipsa [Industrial processing of phosphogypsum]. – St. Petersburg: Stroyizdat St. Petersburg, 2007. – 104 p. In Russian.

7. Report on research: «Vypolnit' izuchenie inzhenerno-geologicheskih uslovij i razrabotat' rekomendacii po optimizacii parametrov otvalov OOO "Balakovskie mineral'nye udobrenija" ["To study the engineering-geological conditions and develop recommendations for optimizing the parameters of the dumps of OOO" Balakovo Mineral Fertilizers"]. – St. Petersburg, 2010.

8. Report on research: "Vnedrenie na OOO "BMU" sistemy monitoringa ustojchivosti otvala fosfogipsa s odnovremennoj ocenkoj kolichestva razmeshhaemogo materiala" ["Implementation of a monitoring system for the stability of the phosphogypsum slab at LLC BMU with the simultaneous estimation of the quantity of the placed material"]. – St. Petersburg, 2012.

9. Hilton, Julian, Phosphogypsum (PG): Uses and Current Handling Practices Worldwide, Proceedings of the 25th Annual Lakeland Regional Phosphate Conference. October 13-14, 2010, London UK.

10. Korobanova, Tatyana. «Dangerous geodynamic processes accompanying dump’s formation». Applied and Fundamental Studies: Proceedings of the 8th International Academic Conference. April 29-30, 2015, St. Louis, USA. Science and Innovation Center Publishing House, Ltd., 2015. pp. 84-90.

11. Lee Abramson. Slope stability and stabilization methods. – New York: John Wiley & Sons, 2001. – 712 p.

12. Tayibi H., Choura M., López F.A., Alguacil J.A., López-Delgado A. (2009). Environmental impact and management of phosphogypsum (Review). J. Environ. Manage. 90, 2377-2386.


Supplementary files

For citation: Kutepova N.A., Korobanova T.N. Features of phosphogypsym dump deformation development. Gornye nauki i tekhnologii = Mining Science and Technology (Russia). 2017;(1):31-39. https://doi.org/10.17073/2500-0632-2017-1-31-37

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