Voloshyn O.I.,, Riabtsev O.V., Protsak S.Yu., Onika S.Н. The forecast of a possibility to re-use preparatory roadway with anchor-frame supports in mines of western donbass

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Parent Category: Geo-Technical Mechanics, 2021

Category: Geo-Technical Mechanics, 2021, № 156

Geoteh. meh. 2021, 156, 77-87

https://doi.org/10.15407/geotm2021.156.077

 

THE FORECAST OF A POSSIBILITY TO RE-USE PREPARATORY ROADWAY WITH ANCHOR-FRAME SUPPORTS IN MINES OF WESTERN DONBASS

¹Voloshyn O.I., ¹Riabtsev O.V., ¹Protsak S.Yu., ²Onika S.Н.

¹Institute of Geotechnical Mechanics named by N. Poljakov of NAS of Ukraine,²Belarusian National Technical University

UDC 622.268.6                                    

Language: Russian

Abstract. The authors present a solution for an live scientific applied problem on predicting a possibility to re-use a preparatory roadway - a mother entry, which is reinforced with the anchor-frame supports - in the conditions of the mines in Western Donbass. The purpose of the research is to develop a complex of practical recommendations, implementation of which will create the conditions for re-use of the roadway in the conditions of the Western Donbass mines.
The solution of this problem is based on the analysis of changes in geomechanical state of the enclosing rocks in the vicinity of the roadway. The obtained analytical data on changes of the rock geomechanical state in the vicinity of the mother entry under typical operating conditions outside zone of longwall influence, in the bearing zone of advancing face of the longwall and behind the face of the longwall show that it is possible to predict a possibility for re-using a roadway during the implementation of routine measures on its maintenance and protection. Identification of the calculated values of the convergence of the roadway roof and soil showed good convergence with the corresponding factual values measured during the mine research.
As a result of the research, a set of measures is proposed, implementation of which will create conditions for the roadway reuse. It is also proposed to use a combined timbering of strengthening which will allow to support the roadway edge and to change direction of load on the roadway frame support for providing more yielding and, besides, to reduce roof rock lowering up to 400 mm, preserve geometry of the roadway and prevent deformation of the frame support elements.
The proposed recommendations will reduce operating costs of the roadway maintenance, improve safety of its operation and increase economic efficiency of mining district.
Keywords: reuse of production, convergence of roofing and soil working, prefab stripping, operational safety.

REFERENCES:

1. Bulat, A.F. and Vinohradov, V.V. (2002), Oporno-ankernoe kreplenie gornykh vyrabotok ugolnykh shakht [Support and anchor fastening of mine workings of coal mines], Institute of Geotechnical Mechanics NAS of Ukraine, Dnepropetrovsk, Ukraine.

2. Ministry of Energy and Coal Industry of Ukraine (2014), 10.1.05411357.012:2014: Instruktsiia z proiektuvannya kombinovanoho ramno-ankernoho kriplennya hirnychikh vyrobok [10.1.05411357.012:2014: Instructions for designing a combined frame-anchor fastening of mine workings], Ministry of Energy and Coal Industry of Ukraine, Kyiv, Ukraine.

3. Ministry of Energy and Coal Industry of Ukraine (2014), 10.1.05411357.010:2014: Systema zabezpechennya nadiynoho ta bezpechnoho funktsionuvannya hirnychykh vyrobok z ankernym kriplennyam. Zahalni tekhnichni vymohy [10.1.05411357.010:2014: System for ensuring reliable and safe operation of mine workings with anchoring. General technical requirements], Ministry of Energy and Coal Industry of Ukraine, Kyiv, Ukraine.

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5. Voloshyn, A.I., Bulat, А.F., Ryabtsev, О.V. and Savostiyanov, А.V. (2011), “Technology of strategic planning of mining development”, Ugol, no.2, 22 – 256.

6. Voloshyn A. I. (2013), “Technology of strategic planning of mining development”, Materialy naukovo-praktychnoho seminaru «Stratehichne planuvannya rozvytku hirnychykh robit», Donetsk, 29.01.2013, DU «NNDIPBOP» Informatsiynyy byuleten z okhorony pratsi, Vol.1, pp. 52 – 69.

 
About the authors:

Voloshyn Oleksii Ivanovych, Doctor of Technical Sciences (D.Sc.), Professor, Deputy Director for Research, Institute of Geotechnical Mechanics named by N. Poljakov of the National Academy of Sciences of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Riabtsev Oleh Viktorovych, Candidate of Technical Sciences (Ph.D), Senior Researcher, Senior Researcher in Department of Vibratory Transporting Systems and Complexes, Institute of Geotechnical Mechanics named by N. Poljakov of the National Academy of Sciences of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Protsak Serhii Yuriovych, Master of Science, Junior Researcher in Department of Vibratory Transporting Systems and Complexes, Institute of Geotechnical Mechanics named by N. Poljakov of the National Academy of Sciences of Ukraine (IGTM NAS of Ukraine), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Onika Serhii Heorhiiovych, Doctor of Technical Sciences, Professor, Head of the Mining Department, Belarusian National Technical University (BNTU), Minsk, Republic of Belarus

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