IN-MINE INVESTIGATION OF GEOMECHANICAL PROCESSES NEAR THE LOCAL WORKINGS IN THE STATE ENTERPRISE "«YUZHNODONBASSKAYA №1 MINE» COAL COMPANY"

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 123

UDC 622.261.2:622.28.04

Authors:

Solodyankin O.V., D.Sc. (Tech.), Professor (State H E I «NMU»)

Grigoriev A.E., PhD. (Tech.), Associate Professor (State H E I «NMU»)

Khalimendik A.V., PhD. (Tech.), Associate Professor (State H E I «NMU»)

Mashurka S.V., M.S. (Tech.), (State H E I «NMU»)

Abstract.

Purpose of the investigation was to study physics of geomechanical processes in the rock mass around the workings in difficult geomechanical conditions in the SE “Yuzhnodonbasskaya Mine №1».

The investigation complex included a visual inspection of the preparatory roadway state and instrumental measurements of the rock contour displacements.

Specific types of support deformations were revealed, and volumes of repair works were determined. Basic factors were formulated which determined a complexity degree of the workings use. Dependence between the rock contour displacements and timeline was specified for different stages of the workings exploitation.  Influence of the rock bottom lifting on intensification of the geomechanical processes in the workings was explained. Methods for improving the workings stability under the effect of large deformations in the marginal rock mass were analyzed. The most effective facilities are proposed for supporting operational condition of the workings under the effect of mining operations and for their further reuse in difficult geomechanical conditions.

Keywords:

extended working, in-mine researches, longwall, rock floor heaving, methods for working support, roof bolting.

References:

1. Demchenko, A.I. and Kulassek, M. (2003), “Engineering support sustainable airing longwall heavily in mining and geological conditions of the coal seam d₄ mine "Krasnoarmeyskaya-Zapadnaya № 1"”, Glukauf, no. 4, pp. 45-50.

2. Skypochka, S.I., Usachenko, B.M. and Kuklin, V.U. (2006), Elementy heomekhaniky ugleporodnogo massyva pri vysokikh skorostyakh podviganiya lav [Elements of geomechanics rock mass at high advance rates of longwall], Lyra LTD, Dnepropetrovsk, Ukraine.

3. Majcherczyk, T., Szaszenko, A. and Sdwizkowa E.  (2006), PodstawyGeomechaniki [Foundations geomechanics], AGH Uczelniane widawnictwa naukowo-dydaktyczne, Krakow, Poland.

4. Shashenko, A.N., Solodyankyn, A.V. and Smirnov, A.V. (2015), Puchenie porod pochvy v vyrabotkakh ugolnykh shakht [Heaving of bottom rocks in coal mines workings], LyzunovPres, Dnepropetrovsk, Ukraine.

5. Tupikov, B.T. and Kompanets, V.F. (1998), “Stability in an rock mass coal seam workings at great depths”, Coal of Ukraine, no. 6, pp. 15-17.

6. Vygodin, M.A. and  Yevtushenko, V.V. (1999), “The use of metal-roof bolts in mines of Western Donbass”, Coal of Ukraine, no. 8, pp. 36-38.

7. Litvinsky, G.G. (1987), “The mechanism of heaving rocks floor of development workings”, Coal of Ukraine, no. 2, pp. 15-17.

8. Zubov, V.P., Chernyshkov, L.N. and Lazchenko, K.N. (1987), “Influence of rock floor taking-up on heaving rocks in development workings”, Coal of Ukraine, no. 7, pp. 15-16.

9. Kostogryz, V.I. (1998), “The effectiveness of hardening plastic rocks anchoring”, Naukovy vіsnyk Natsyonalnogo hyrnichogo unyversitetu, no. 3, pp. 13-15.

10. Bulat, A.F. and Vinogradov, V.V. (2002), Oporno-ankernoe kreplenie gornykh vyrabotok ugolnykh shakht [The support anchor mining workings of coal mines], IGTM NAN Ukraine, Dnepropetrovsk, Ukraine.

• < Prev
• Next >