STUDY OF WATER INFLOW IN MINE WORKINGS WITH ANCHORS

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 120

UDC691.32:620.193.4:539.219.3

Authors:

Krukovskaya V.V., D.Sc. (Tech.), Senior Researcher,

Krukovskiy A.P., D.Sc. (Tech.), Senior Researcher

(IGTM NAS of Ukraine),

Vinogradov Y.A., Student

(State HEI «NMU»)

Abstract:

The Western Donetsk Basin refers to one of the most complicated regions by its geological conditions. Due to the water intrusion the enclosing rocks get soaked, tunnel contour loose its stability, and edge rocks fall. Therefore, it is important to accurately forecast water inflow into the tunnel under the concrete hydrogeological conditions in order to undertake effective measures to prevent emergency water inflows.

Changes in the stress fields, permeability and moisture around the tunnels with the frame and roof bolting under different hydrogeological conditions were studied by method of computer simulation. The calculated values of water inflow into the tunnels with the frame and roof bolting have been confirmed by underground observations. It is stated that the roof bolting suppresses further fracturing, hereupon the dimensions of the filtration domain decreases around the tunnel, and water inflow in the opening reduces. In some cases, when watered rock layers are at a sufficient distance from the tunnel contour, water inflow into the tunnel can be prevented almost completely. Therefore, the roof bolting can be used as a technological means for reducing water inflow into the mine tunnels.

Keywords: water inflow into the tunnel, numerical calculation methods, roof bolting.

References:

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About the authors:

Krukovskaya Victoriya Victorovna, Doctor of Technical Sciences (D. Sc), Senior Researcher, Senior Researcher in Department of Control of Dynamic Demonstrations of Rock Pressure, 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.

Krukovskiy Alexander Petrovich, Doctor of Technical Sciences (D. Sc), Senior Researcher, Deputy Director of the institute, 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.

Vinogradov Yuriy Alexeevich, student, State higher educational establishment «National mining university» (SHEE «NMU» MES of Ukraine), Dnepropetrovsk, Ukraine.

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