HOW THE RIB-SIDE TRACK RIGIDITY IMPACTS ON THE GATE CONTOUR CONVERGENCE AND ECLOSING ROCK STATE

UDC 622.268.13: 622.268.7

Authors:

Kurnosov S.A., D.Sc. (Tech.), Senior Researcher,

Zaderiy V.V., M.S (Tech.) (IGTM NAS of Ukraine),

Pilyugin V.I., D.Sc. (Tech.),

Demidenko A.G., Master of Science («DTEK Energo» OJSC),

Tsikra A.A., Ph. D. (Tech.),

Averkin D.I., Master of Science («Minova Ukraine» LTD),

Baldin V.V., M.S (Tech.),

Silishchev A.G., M.S (Tech.) («Rovenkiantracit» OJSC)

Abstract.

Dependences between displacement of the gate contour, deformation of enclosing rocks and rigidity of the rib-side track were studied at all stages of the tunnel running: before winning operations impacting, in zones with bearing pressure ahead of the longwall and in zones with intensive and steady-state displacements behind the longwall. The findings showed high effectiveness of the rigid tracks, and it was proved that a belt entry with combined (concrete packed track plus bolt-and-arch support) supports could be reused as an air roadway when mining an adjoining panel. In order to escape bottom ripping, it is recommended to apply a double track where the first, nearest to the entry, row consists of the formed chocks (i.e. yielding track), and the second row is a rigid concrete track.

Keywords:

rigidity of the rib-side tracks, deformation of the gate contour and enclosing rocks

References:

1. A.F. Bulat, S.A. Kurnosov, I.N. Slaschev (et al.) (2007),"Interaction of the combined method of maintaining gas collecting developments with the host coal massif", Geotechnical Mechanics, no. 68, рр. 24-36.

2. Ukraine Ministry of Coal Industry (2008), 10.1.05411357.010:2008. Systema zabezpechennia nadiynogo ta bezpechnogo funktsionuvannia girnychyh vyrobok iz ankernym kriplenniam. Zagalni tehnichni vymogy: Normatyvnyy dokument Minvuhlepromu Ukrainy. Standart [10.1.05411357.010:2008. System to ensure reliable and safe operation of mining bolting. General specifications: Regulatory Document Coal Industry of Ukraine. Standard], Ukraine Ministry of Coal Industry, Kiev, Ukraine.

3. The Ministry of Fuel and Energy of Ukraine, The National Academy of Sciences of Ukraine, M.S. Polyakov Institute of Geotechnical Mechanics under the NAS of Ukraine (2004), "Temporary technological regulations for the protection of development workings of coal mines cast strips of hardened materials", Dnepropetrovsk-Donetsk, Ukraine.

4. The Ministry of Fuel and Energy of Ukraine, The National Academy of Sciences of Ukraine, M.S. Polyakov Institute of Geotechnical Mechanics under the NAS of Ukraine (2009), "Technological regulations maintain reusable drifts excavation combined anchoring systems", Dnepropetrovsk-Donetsk, Ukraine.

5. S.A. Kurnosov, V.V. Zaderiy, A.A. Tsikra (et al.) (2013), “Experience in the application security team-insulating strip of fast-curing mixture “TEKHARD”, Geotechnical Mechanics, no. 112, рр. 267-280.

6. Baysarov, L.V., Ilyashov, M.A. and Demchenko, A.I. (2005), Geomehanika i tehnologiya podderzhaniya povtorno ispolzuemyh vyrabotok [Geomechanics and maintain technology reusable mining developments], Lira, Dnepropetrovsk, Ukraine.

About the authors:

Kurnosov Sergey Anatolyevich, Doctor of Technical Sciences (D.Sc.), Senior Researcher, Senior Researcher in the Department of Miberal Mining at Great Depths M.S. Polyakov Institute of Geotechnical Mechanics under the NAS of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Zaderiy Vladimir Vasilyevich, Engineer in the Department of Miberal Mining at Great Dephts M.S. Polyakov Institute of Geotechnical Mechanics under the NAS of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Pilyugin Vitaliy Ivanovich, Doctor of Technical Sciences (D.Sc.), Head of the Department for Science and Innovation, Department of Technical Development, LLC «DTEK Energo» LTD, Donetsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Demidenko Alexander Gennadievich, Master of Science, Deputy Head of the Department for Science and Innovation, Department of Technical Development, LLC «DTEK Energo» LTD, Donetsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Tsikra Alexander Anatolyevich, Candidate of Technical Sciences (Ph.D), Technical director of «Minova Ukraine» LTD, Donetsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Averkin Dmitry Ivanovich, Master of Science, Deputy Director of «Minova Ukraine» LTD, Donetsk, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Baldin Vyacheslav Valentinovich, Master of Science, Deputy chief Engineer of the production of «Rovenkiantracit» OJSC, Rovenki, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.

Silishchev Aleksey Gennadievich, Master of Science, mining master of «Rovenkiantracit» OJSC, Rovenki, Ukraine, Ця електронна адреса захищена від спам-ботів. вам потрібно увімкнути JavaScript, щоб побачити її.