Simulation of interaction between components of underground piping-mine working (UP-MW) transportation and technological system to identify the specificity of methane-air mixture movement through mine pipelines as well as tendencies reducing hydraulic resistance and improving capacity is topical today. For this purpose, it is required to conduct an expert appraisal of the technical condition of mine degassing lines constructed in underground development workings, where the floor tends to heave and evaluate available approaches to identify indices of the methane-air mixture (MAM) motion. Analysis of underground gas pipelines' technical conditions and their operational features within curvilinear mine workings has helped to understand the following. Under the impact of rock mass deformations, flange connections of a pipeline bend which results in water accumulation; mechanical depositions of coal and rock dust; and corrosion of inner walls of metal pipes. The obtained actual data, concerning the interaction between components of underground piping-mine working, as well as modeling results of its technical condition, using Solid Works Flow Simulation software, has made it possible to define peculiarities of MAM transportation through the deformed degassing pipeline. It has been proved experimentally that in addition to mechanical failure of pipe connections, the negative impact of rock mass deformation provokes a decrease in the pipeline capacity and needs the development of new engineering solutions concerning its upgrading. Simulation of the features of MAM transportation through degassing underground odd-shaped pipelines has helped substantiate new approaches to decrease hydraulic resistance while increasing the capacity of the transportation and technological system in the specific environment of gaseous coal seam mining
Received 25.11.2021
Revised 18.02.2022
Accepted 23.05.2022
[1] Shyrin L.N., Yehorchenko R.R., Serhiienko M.I. Osoblyvosti diahnostyky tekhnichnoho stanu transportno-tekhnolohichnoi systemy «shakhtnyi hazoprovid – hirnycha vyrobka. Naukovo– tekhnichnyi zhurnal «HEOINZhENERIIa». 2021. Vol. 6. P. 28-37. [in Ukrainian] https://doi.org/ 10.20535/2707-2096.6.2021.241823
[2] Shyrin L.N., Bartashevskyi S.Ie., Yehorchenko R.R. Osoblyvosti monitorynhu ta pidtrymky tekhnichnoho stanu shakhtnykh dehazatsiinykh hazoprovodiv v umovakh intensyfikatsii hirnychykh robit. Zbirnyk naukovykh prats NHU. Dnipro: Natsionalnyi TU «Dniprovska politekhnika». 2021. No 67. P. 153164 р. [in Ukrainian] https://doi.org/10.33271/ crpnmu/67.153/
[3] Stolbchenko E. V., Pugach S. I. Obosnovanie parametrov uchastkov trub shahtnyih setey. Sotsialno-ekonomicheskie i ekologicheskie problemyi gornoy promyishlennosti, stroitelstva i energetiki: sbornik materialov 15-oy Mezhdunarodnoy konferentsii po problemam gornoy promyishlennosti, stroitelstva i energetiki, Minsk–Tula– Donetsk. 2019. P. 198-204. https://rep.bntu.by/ handle/data/63094 [in Russian]
[4] Novikov L.A. Matematicheskaya model dvizheniya turbulentnogo potoka gazovzvesi v degazatsionnom truboprovode. Geotehnicheskaya mehanika. 2008. Vol. 76. P. 126-131. [in Russian]
[5] Lavrik V.G. Vliyanie izmenyayuscheysya vyisotyi shahtnogo degazatsionnogo gazoprovoda na velichinu davleniya metanovozdushnoy smesi. Razrabotka mestorozhdeniy poleznyih iskopaemyih: 1978. Vol. 49. P. 8 – 10. [in Russian]
[6] Sklyarov L.A. Raschet davleniya v naklonnyih i vertikalnyih gazoprovodah . Borba s gazom, pyilyu i vyibrosami v ugolnyih shahtah: Sb. tr. MakNII. 1974. Vol. 10. P. 58-61. [in Russian]
[7] SOU-P 10.1.00174088.018:2009 Sistema upravleniya proizvodstvom i ohranoy truda v ugolnoy promyishlennosti Ukrainyi (tipovoe rukovodstvo): Utverzhdeno Prikazom Ministerstva ugolnoy promyishlennosti Ukrainyi ot 21.01.2010 g. No 7. Kiev, 2010. 200 p. [in Russian]
[8] NPAOP 10.0-1.01-10 Pravyla bezpeky u vuhilnykh shakhtakh: zatv. Nakazom Derzhavnoho komitetu Ukrainy z promyslovoi bezpeky, okhorony pratsi ta hirnychoho nahliadu 22.03.2010 No 62. Kyiv: 2010- 2154 (Normatyvnyi dokument Minvuhlepromu Ukrainy). [in Ukrainian]
[9] Pravyla proektuvannia dehazatsii vuhilnykh shakht ta ekspluatatsii dehazatsiinykh system: SOU-P. 2020. Ministerstvo enerhetyky Ukrainy. [in Ukrainian]
[10] Malashkina V. A. Issledovanie faktorov, vliyayuschih na kachestvo metanovozdushnoy smesi, podavaemoy ot skvazhin na poverhnost ugolnoy shahtyi po gazoprovodu iz kompozitnogo materiala. Gornyiy informatsionno-analiticheskiy byulleten. 2015. No 8. P. 234–242. [in Russian]
[11] Tseytlin Yu.A. Analiz techeniya metanovozdushnoy smesi po negermetichnomu truboprovodu. Gornaya elektromehanika i avtomatika. 1977. Vol. 30. [in Russian]
[12] Tseytlin Yu.A., Oksen Yu.I. Raschet rezhima rabotyi degazatsionnyih sistem ugolnyih shaht s primeneniem EVM. Gornaya elektromehanika i avtomatika.1976. Vol. 29. P. 52-60. [in Russian]
[13] J.D.Bethune. Engineering Design and Graphics with Solid Works. Upper Saddle River: Prentice Hall. 2009. 552 p.
[14] Deiaki osoblyvosti transportuvannia i pererobky metanopovitrianoi sumishi na vuhilnykh shakhtakh / S.P. Minieiev, D.M. Pymonenko, L.A. Novikov, A.I. Slashchov. Instytut heotekhnichnoi mekhaniky im. M.S. Poliakova NAN Ukrainy, Dnipro, Ukraina coll.res.pap.nat.min.univ. 2019, 59:98-107. [in Ukrainian] https://doi.org/10.33271/crpnmu/59.098
[15] Gusarova I.G., Boyarskaya Yu.V. Klassyi zadach modelirovaniya i chislennogo analiza nestatsionarnyih rezhimov rabotyi gazotransportnoy sistemyi. Vostochno-Evropeyskiy zhurnal. 2010. No 3/6(45). P. 26-32. [in Russian]