Trokhymets М.Ya., Maltseva V.Ye., Vialushkin Ye.O., Аntonchik V.Ye., Moskalova Т.V., Polushyna M.V. Method and equipment for the safe development of preparatory workings in the gas-bearing coal seams

Details
Parent Category: Geo-Technical Mechanics, 2019
Category: Geo-Technical Mechanics, 2019, № 145

Geoteh. meh. 2019, 145, 108-118

https://doi.org/10.1051/e3sconf/201910900102

METHOD AND EQUIPMENT FOR THE SAFE DEVELOPMENT OF PREPARATORY WORKINGS IN THE GAS-BEARING COAL SEAMS

1Trokhymets М.Ya., 1Maltseva V.Ye.,2Vialushkin Ye.O.,1АntonchikV.Ye.,

3Moskalova Т.V., 3PolushynaM.V.

1Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of Ukraine, 2National Metallurgical Academy of Ukraine, 3National Technical University Dnipro Polytechnic

UDC 622.232.522. 24

Language: English

Abstract. The article describes a method and equipment for the safe development of preparatory working on a gas-bearing, outburst hazardous coal seam by a heading machine. The described method significantly prevents the gas emission during mining operations. Determination of the amount of degassing and relief wells is performed according to the given in article mathematical formulas. This ensures a significant increase in the level of safety processing the preparatory roadway on a gas-bearing, prone to outbursts coal seam by a heading machine. Due to this, the speed of conducting excavation increases and the cost of mining is reduced. Technological scheme of equipment placement for the implementation of the preparatory development method of preparatory work on a gas-bearing outburst hazardous coal seam by a heading machine is given. The proportionality coefficients of the mathematical models were determined. Mathematical models are used to calculate the number of relief and degassing wells, which are drilled during the impulse hydraulic loosing of the nearby part of the coal seam. Also the duration of liquid injection into a coal seam is also determined. Mathematical models for calculating the number of injection, unloading and degassing boreholes can be used in development of the passports for conducting preparatory workings on a gas-bearing, prone to outburst coal seam by a heading machine with a preliminary impulse hydraulic loosing of the nearby part of a coal seam. These will provide a significant increase in the level of safety when implementing the method of carrying out preparatory roadway in a prone to outburst gas-bearing seam by a heading machine, since all three conditions are simultaneously fulfilled according to the theory of preventing gas-dynamic phenomena: reducing the stress state of a gas-saturated coal formation by deforming the relief holes, reducing the gas pressure in the seam by pumping fluid into the injection boreholes and, as a result, gas displacement from the seam through the degassing bore-holes into the sealed part of the development, as well as the decrease of mechanical properties of the seam as a result of its wetting.measures and provide an opportunity to solve the problem of safe preparation of the emission of dangerous gas-bearing coal seams for the extraction of coal from them.

Keywords:heading machine, unloading and degassing boreholes, a preliminary impulse hydraulic loosing, gas-bearing outburst hazardous coal seam.

REFERENCES

  1. Potapenko, O.O., Anhelovskyi, O.A., Vasylev, D.L., Trokhymets, M.Ya., Nykyforov, O.V., Chuhunkov, I.F., Antonchyk, V.Ye., Vasyliev, L.M., and Vialushkin, Ye.O., Institute of Geotechnical Mechanics named be M. Poljakov of National Academy of Sciences of Ukraine (2006), Prystriy dlya mekhanizovanoho burinnya shpuriv i sverdlovyn u vykydonebezpechnomu vuhilnomu plasti pry provedenni v nomu pidhotovchykh plastovykh vyrobok prokhidnytskym kombaynom z robochym orhanom na teleskopniy strili [A device for mechanized drilling of bore-holes and wells in an prone to outburst coal seam during conducting it in preparatory workings by a heading machine with a working body on a telescopic boom], Stat Register of Patents of Ukraine, Kyiv, UA, Pat. No 104681.
  2. www.ngmzbur.com/products/boring-rig/sbn
  3. Nikolin, V.I. and Vasylchuk, M.P. (1997), Prognozirovaniyeiustraneniyevybrosoopasnostiprirazrabotkeugol'nykhmestorozhdeniy [Forecasting and eliminating outburst hazards in the development of coal deposits], Roscompechat, Lipetsk, RU.
  4. Anhelovskyi, O.A., Potapenko O.O., Vasyliev, L.M., Vialushkin, Ye.O., Nykyforov, O.V, and Trokhymets, M.Ya., Institute of Geotechnical Mechanics named by M.Poljakov of National Academy of Sciences of Ukraine (2015), Sposibzapobihannyavykydonebezpechnostivuhilnohoplastapryprovedennivnomupidhotovchoyiplastovoyivyrobky[A method of preventing the outburst in coal seams during caring out preparation working in it], Stat Register of Patents of Ukraine, Kiyiv, UA, Pat. No 100004.
  5. Mineev, S.P., Potapenko, O.O., Nykyforov, O. V., Anhelovskyi, O. A., Vialushkin, Ye.O., and Trokhymets, M.Ya., Institute of Geotechnical Mechanics named by M. Poljakov of National Academy of Sciences of Ukraine (2015), Sposib zapobihannya vykydonebezpechnosti vuhilnoho plasta pry provedenni v nomu pidhotovchoyi plastovoyi vyrobky prokhidnytskym kombaynom [A method of preventing the outburst of coal seams during caring out a preparation working in it by a heading machine],Stat Register of Patents of Ukraine, Kyiv, UA, Pat. No 108176.
  6. Usov, O.O., Trokhymets, M.Ya., Vasyliev, D.L., Poljakov, Yu.Ye., Potapenko, O.O., and Anhelovskyi, O.A., Institute of Geotechnical Mechanics named by M. Poljakov of National Academy of Sciences of Ukraine (2012), Sposib dehazatsiyi hazonasychenoho vykydonebezpechnoho vuhilnoho plasta [Method for degassing a gas-saturated outburst-dangerous coal seam], Stat Register of Patents of Ukraine, Kyiv, UA, Pat. No 68478.
  7. Vasilev, L.M., Potapenko, O.O., Anhelovskyi, O.A., Vasyliev, D.L., Usov, O.O., and Trokhymets, M.Ya., Institute of Geotechnical Mechanics named by M. Poljakov of National Academy of Sciences of Ukraine  (2012), Sposib upravlinnya hidroimpulsnoyu diyeyu na vuhilnyy plast [Method for control of hydropulse effect on a coal seam],Stat Register of Patents of Ukraine, Kyiv, UA, Pat. No 67767.
  8. Vasyliev, L.M., Usov, O.O., and Potapenko, A.A., Institute of Geotechnical Mechanics named by M.S. Poljakov of  National Academy of Sciences of Ukraine (2011), Prystriy upravlinnya gidroimpulsnoyu diyeyu na vugilniy plast [The device of management hydropulse action on coal seam], Stat Register of Patents of Ukraine, Kyiv, UA,  Pat. No 68355.
  9. Ukraine Ministry of Coal Indusry (2005), 10.1.00174088.011:2005. Pravila vedeniya gornnykh rabot na plastakh sklonnykh k gazodinamicheskim yavleniyam: Normativniy dokument Minugleproma Ukrainy Standart [10.1.00174088.011:2005. Rules for conducting mining cracks in layers prone to gas-dynamic phenomena: Regulatory Document Coal Indastry of Ukraine. Standart], Ukraine Ministry of Coal Indusry, Kyiv, Ukraine.

About the authors

Trohimets МyкolaYakovych, Candidate of Technical Sciences (Ph.D.), Senior Researcher, Senior Researcher in the Department of Pressure Dynamics Control in Rocs, Institute of Geotechnical Mechanics named by M. Poljakov of National Academy of Sciences of Ukraine (IGTM, NAS of Ukraine), Dnіprо, Ukraine

Maltseva Vіra Yevhenivna, Master of Science, Principal Engineer in the Department of Pressure Dynamics Control in Rocs, Institute of Geotechnical Mechanics named by M. Poljakov of National Academy of Sciences of Ukraine (IGTM, NAS of Ukraine), Dnіprо, Ukraine

Vialushkyn Yehor Olehovych, Master of Science, Engineer, National Metallurgical Academy of Ukraine, Dnіprо, Ukraine

Antonchik Volodymyr Yevhenovych, Master of Science, Chief Designer in the Department of Pressure Dynamics Control in Rocs, Institute of Geotechnical Mechanics named by M. Poljakov of National Academy of Sciences of Ukraine (IGTM, NAS of Ukraine), Dnіprо, Ukraine

Moskalova Тetiana Vitaliivna, Candidate of Technical Science (Ph.D.), Associate Professor, Associate Professor in Department of Engineering and Design in Machinery Industry of National Technical University Dnipro Polytechnic (NTU “DP”), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Polushyna Maryna Vitaliivna, Candidate of Technical Science (Ph.D.), Associate Professor, Associate Professor in Department of Engineering and Design in Machinery Industry of National Technical University Dnipro Polytechnic (NTU “DP”), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.