STUDY OF THE DUMP STABILITY UNDER THE CONVEYOR GALLERY IN THE COMPLEX WITH CYCLIC-AND-CONTINUOUS TECHNOLOGY IN THE PERVOMAISKY QUARRY

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 123

UDC 622.271:624.131.543

Authors:

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

Babiy K.V., Ph.D. (Tech.), Senior Researcher (IGTM NAS of Ukraine)

Abstract.

Purpose of the research was to study factors which cause sliding of the dump under the conveyor gallery in the Pervomaisky Quarry where a cyclic-and-continuous technology (CCT) was used, and to develop recommendations for improving the gallery stability.

Geological and hydrogeological state of the rocks in the Pervomaisky Quarry was studied. The diagnostics of the massif was performed by electrometric measurement. The underground water level (topwater) and the rocks moisture were determined. It was established that the main factor of the landslide occurred in the top part of the dump was cutting-off of areas, where groundwater from the loess-like loam was discharged into the quarry, and, as a result, weakening of the dump base. The dump structures were simulated with the purpose to consolidate the dump and to validate the landslide-preventing measures. The calculated safety factor has showed that technical solutions for improving the dump stability should be aimed at consolidation of the dump base and reduction of a load caused by the rock weight. Technical solutions were developed which should improve the dump stability under appropriate technological loads and seismic loads up to 8 points caused by the blasting operations.

Keywords:

quarry, landslides, cyclic-and-continuous technology, underground water, electrometric diagnosis.

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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. .

Babiy Katerina Vasilevna, 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 Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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