REASONS FOR MINING-INDUCED CAVE FORMATION AND WAYS OF THE CAVE LIQUIDATION

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Parent Category: Geo-Technical Mechanics, 2013

Category: Geo-Technical Mechanics, 2013, Issue 111

UDC 622.831.6:622.882 

Chetverik М.S., D.Sc. (Tech.), Professor (IGTM NAS of Ukraine)

Bubnova Ye.А., Ph.D. (Tech.), Senior Researcher (IGTM NAS of Ukraine)

Soroka Yu.N. Ph.D. (Tech.) (LLC "Center of radio-environmental monitoring")

Abstract. Every year in Ukraine more than billion cubic meters of rocks is recovered from the bowels of the earth in the form of extracted minerals and associated overburden and host rocks causing formation of underground pockets of various sizes. In tens and even hundreds years the caves will be formed in the area of the old mines and underground tunnels.

The paper describes main factors conducing to cave formation and main types of secondary  rock dislocations with postforming of the caves.

On example of a sinkhole in the city of Zhyoltye Vody, causes for intensified natural and man-caused processes in the undermined space are shown with a model of their further development. It is demonstrated that when the Novaya Mine, which is adjacent to the sinkhole, becomes closed a part of the city territory would be flooded, an open water body would be formed,  and soil under the buildings and structures would subside. In order to avoid such consequences of the field mining reclaiming of the sinkhole is proposed to be performed in three stages.

The proposed method for recovering geological environment in the sinkhole allow to recreate geological environment close to the original natural state, reduce negative ecological load on the region and provide safely operation of  the Novaya Mine of the company East- Ore LLC.

Keywords: mining, voids, deformations, karst, dips, recovery.

References:

1. Chetverik, M.S., Bubnova, Ye.A. and Kulak, V.P. “Effect of violation of the geological environment at elevated groundwater levels and the formation of cone of depression during excavation of minerals”, Materialy mizhnarodnoi konferentsii Forum girnykiv-2008 [Proceedings of the International Conference of Forum miners – 2008], Dnepropetrovsk, Ukraine, 13-15 October 2008, pp. 226-233.

About the authors:

Chetverik Mikhail Sergeyevich, Doctor of Technical Sciences (D. Sc), Professor, Head of Department of Geomechanics of Mineral Opencast Mining Technology, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Bubnova Yelena Anatolevna, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in Department of Geomechanics of Mineral Opencast Mining Technology M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Soroka Yuriy Nikolaevich, Candidate of Technical Sciences (Ph.D), Director of Limited Liability Company "Center of radio-environmental monitoring" (LLC "Center of radio-environmental monitoring"), Zheltye Vody, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

 

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