Abstract
The influence of tectonic, geostatic, and mining stresses on coal and gas outburst (CGO) becomes more obvious with increasing mining depth. The limitations of general experimental methods and test systems hinder the direct observation and characterization of the dynamic responses of the multi-physical parameters associated with CGO. In this study, a custom-made large-scale physical simulation test system was used to study the characteristics of outburst evolution under different geo-stress levels, to overcome dynamic disasters in coal mines. The intensity and initial velocity of the outburst coal flow increased with increasing geo-stress. The geo-stress changes and gas pressure released during the outburst process mainly manifested in the relief and abutment stress zones, while the release of the elastic strain energy manifested in the abutment stress zone. This showed that the sphere of influence of the change on the physical parameters, such as the geo-stress, gas pressure, and elastic strain energy, is important for setting the drilling depth in measures to eliminate outburst. Interestingly, there seems to be a mechanism that suppresses the excess energy released during the outburst process, such that the solid–gas ratio of the two-phase outburst flow does not increase with increasing initial geo-stress. The dynamic outburst phenomenon is not completely positively correlated with increasing geo-stress. The mechanism causes cyclical fluctuations in the geo-stress, elastic strain energy, and gas pressure during the CGO process and pulse characteristics of the outburst coal flow simultaneously.
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References
Aguado MBD, González C (2009) Influence of the stress state in a coal bump-prone deep coalbed: a case study. Int J Rock Mech Min Sci 46:333–345. https://doi.org/10.1016/j.ijrmms.2008.07.005
Aguado MBD, Nicieza CG (2007) Control and prevention of gas outbursts in coal mines, Riosa-Olloniego coalfield. Spain Int J Coal Geol 69:253–266. https://doi.org/10.1016/j.coal.2006.05.004
Alexeev AD, Revva VN, Alyshev NA, Zhitlyonok DM (2004) True triaxial loading apparatus and its application to coal outburst prediction. Int J Coal Geol 58:245–250. https://doi.org/10.1016/j.coal.2003.09.007
Álvarez-Fernández MI, González-Nicieza C, Álvarez-Vigil AE, Herrera García G, Torno S (2009) Numerical modelling and analysis of the influence of local variation in the thickness of a coal seam on surrounding stresses: application to a practical case. Int J Coal Geol 79:157–166. https://doi.org/10.1016/j.coal.2009.06.008
An FH, Yuan Y, Chen XJ, Li ZQ, Li LY (2019) Expansion energy of coal gas for the initiation of coal and gas outbursts. Fuel 235:551–557. https://doi.org/10.1016/j.fuel.2018.07.132
Cai MF (2002) Rock mechanics and engineering. Science Press, Beijing
Cao YX, Davis A, Liu RX, Liu XW, Zhang YG (2003) The influence of tectonic deformation on some geochemical properties of coals-a possible indicator of outburst potential. Int J Coal Geol 53:69–79. https://doi.org/10.1016/S0166-5162(02)00077-0
Cao J, Sun HT, Wang B, Dai LC, Zhao B, Wen GC, Zhao XS (2019) A novel large-scale three-dimensional apparatus to study mechanisms of coal and gas outburst. Int J Rock Mech Min Sci 118:52–62. https://doi.org/10.1016/j.ijrmms.2019.04.002
Chen KP (2011) A new mechanistic model for prediction of instantaneous coal outbursts—dedicated to the memory of Prof. Daniel D. Joseph. Int J Coal Geol 87:72–79. https://doi.org/10.1016/j.coal.2011.04.012
Ding YL, Yue ZQ (2018) An experimental investigation of the roles of water content and gas decompression rate for outburst in coal briquettes. Fuel 234:1221–1228. https://doi.org/10.1016/j.fuel.2018.07.143
Dutka B, Kudasik M, Pokryszka Z, Skoczylas N, Topolnicki J, Wierzbicki M (2013) Balance of CO2/CH4 exchange sorption in a coal briquette. Fuel Process Technol 106:95–101. https://doi.org/10.1016/j.fuproc.2012.06.029
Geng J, Xu J, Nie W, Peng S, Zhang C, Luo X (2017) Regression analysis of major parameters affecting the intensity of coal and gas outbursts in laboratory. Int J Min Sci Technol 27:327–332. https://doi.org/10.1016/j.ijmst.2017.01.004
Guo CY, Xian XF, Yao WJ, Jiang YD (2010) Relationship between the fracture zone and cave of coal or gas outburst caving in coal and rock seams. J China U Min T 36:802–807. https://doi.org/10.1016/S1876-3804(11)60004-9
Hashemi SS, Melkoumian N (2016) A strain energy criterion based on grain dislodgment at borehole wall in poorly cemented sands. Int J Rock Mech Min Sci 87:90–103. https://doi.org/10.1016/j.ijrmms.2016.05.013
Hodot BB (1966) Outburst of coal and coalbed gas. China Industry Press, Beijing
Huang D, Li Y (2014) Conversion of strain energy in triaxial unloading tests on marble. Int J Rock Mech Min Sci 66:160–168. https://doi.org/10.1016/j.ijrmms.2013.12.001
International Energy Agency (2019) Coal information 2019. Organisation for Economic Co-operation and Development, Paris
Jasinge D, Ranjith PG, Choi SK (2011) Effects of effective stress changes on permeability of Latrobe valley brown coal. Fuel 90:1292–1300. https://doi.org/10.1016/j.fuel.2010.10.053
Jaworski AJ, Dyakowski T (2002) Investigations of flow instabilities within the dense pneumatic conveying system. Powder Technol 125:279–291. https://doi.org/10.1016/S0032-5910(01)00516-2
Jiang JY, Cheng YP, Wang L, Li W, Wang L (2011) Petrographic and geochemical effects of sill intrusions on coal and their implications for gas outbursts in the Wolonghu Mine, Huaibei Coalfield, China. Int J Coal Geol 88:55–66. https://doi.org/10.1016/j.coal.2011.08.007
Jin K, Cheng YP, Ren T, Zhao W, Tu QY, Dong J, Wang ZY, Hu B (2018) Experimental investigation on the formation and transport mechanism of outburst coal-gas flow: implications for the role of gas desorption in the development stage of outburst. Int J Coal Geol 194:45–58. https://doi.org/10.1016/j.coal.2018.05.012
Lama RD, Bodziony J (1998) Management of outburst in underground coal mines. Int J Coal Geol 35:83–115. https://doi.org/10.1016/S0166-5162(97)00037-2
Li H (2001) Major and minor structural features of a bedding shear zone along a coal seam and related gas outburst, Pingdingshan coalfield, northern China. Int J Coal Geol 47:101–113. https://doi.org/10.1016/S0140-6701(02)86160-4
Li H, Feng ZC, Zhao D, Duan D (2017) Simulation experiment and acoustic emission study on coal and gas outburst. Rock Mech Rock Eng 50:2193–2205. https://doi.org/10.1007/s00603-017-1221-3
Li SC, Li QC, Wang HP, Yuan L, Zhang YQ, Xue JH, Zhang B, Wang J (2018) A large-scale three-dimensional coal and gas outburst quantitative physical modeling system. J China Coal Soc 43(S1):121–129. https://doi.org/10.13225/j.cnki.jccs.2017.1076
Liu YB, Yin GZ, Li MH, Zhang DM, Deng BZ, Liu C, Lu J (2019) Anisotropic mechanical properties and the permeability evolution of cubic coal under true triaxial stress paths. Rock Mech Rock Eng 52:2505–2521. https://doi.org/10.1007/s00603-019-01748-1
Lu YY, Wang HY, Xia BW, Li XH, Ge ZL, Tang JR (2017) Development of a multi-functional physical model testing system for deep coal petrography engineering. Rock Mech Rock Eng 50:269–283. https://doi.org/10.1007/s00603-016-1124-8
Nie BS, Ma YK, Meng JQ, Hu ST (2015) Middle scale simulation system of coal and gas outburst. Chin J Rock Mech Eng 37:1218–1225. https://doi.org/10.13722/j.cnki.jrme.2017.1125
Peng RD, Ju Y, Wang JG, Xie HP, Gao F, Mao LT (2015) Energy dissipation and release during coal failure under conventional triaxial compression. Rock Mech Rock Eng 48:509–526. https://doi.org/10.1007/s00603-014-0602-0
Qian XS (1966) Gas dynamics equations. Science, Beijing
Sandwell DT (1987) Biharmonic spline interpolation of GEOS-3 and SEASAT altimeter data. Geophys Res Let 14:139–142. https://doi.org/10.1029/GL014i002p00139
Shankar PN, Deshpande MD (2003) Fluid mechanics in the driven cavity. Annu Rev Fluid Mech 32:93–136. https://doi.org/10.1146/annurev.fluid.32.1.93
Shapiro AH (1953) The dynamics and thermodynamics of compressible fluid flow. Ronald, New York
Singh JG (1984) A mechanism of outbursts of coal and gas. Min Sci T 1:269–273. https://doi.org/10.1016/S0167-9031(84)90309-8
Skoczylas N, Wierzbicki M (2014) Evaluation and management of the gas and rock outburst hazard in the light of international legal regulations. Arch Min Sci 59:1119–1129. https://doi.org/10.2478/amsc-2014-0078
Skoczylas N, Dutka B, Sobczyk J (2014) Mechanical and gaseous properties of coal briquettes in terms of outburst risk. Fuel 134:45–52. https://doi.org/10.1016/j.fuel.2014.05.037
Sobczyk J (2011) The influence of sorption processes on gas stresses leading to the coal and gas outburst in the laboratory conditions. Fuel 90:1018–1023. https://doi.org/10.1016/j.fuel.2010.11.004
Su XP (2014) Molding condition optimization of coal containing gas and its application in physical simulation of CBM extraction. Chongqing University, Chongqing
Sun Q, Zhang JX, Zhang Q, Yin W, Germain D (2016) A protective seam with nearly whole rock mining technology for controlling coal and gas outburst hazards: a case study. Nat Hazards 84:1793–1806. https://doi.org/10.1007/s11069-016-2512-9
Sun HT, Cao J, Li MH, Zhao XS, Dai LC, Sun DL, Wang B, Zhai BN (2018) Experimental research on the impactive dynamic effect of gas-pulverized coal of coal and gas outburst. Energies 11:797. https://doi.org/10.3390/en11040797
Tu QY, Cheng YP, Guo PK, Jiang JY, Wang L, Zhang R (2016) Experimental study of coal and gas outbursts related to gas-enriched areas. Rock Mech Rock Eng 49:3769–3781. https://doi.org/10.1007/s00603-016-0980-6
Valliappan S, Zhang WH (1999) Role of gas energy during coal outbursts. Int J Numer Meth Eng 44:875–895. https://doi.org/10.1002/(SICI)1097-0207(19990310)44:73.0.CO;2-G
Wang CJ, Yang SQ, Li JH, Li XW, Jiang CL (2018a) Influence of coal moisture on initial gas desorption and gas-release energy characteristics. Fuel 232:351–361. https://doi.org/10.1016/j.fuel.2018.06.006
Wang CJ, Yang SQ, Li XW, Yang DD, Jiang CL (2018b) The correlation between dynamic phenomena of boreholes for outburst prediction and outburst risks during coal roadways driving. Fuel 231:307–316. https://doi.org/10.1016/j.fuel.2018.05.109
Wang CJ, Yang SQ, Yang DD, Li XW, Jiang CL (2018c) Experimental analysis of the intensity and evolution of coal and gas outbursts. Fuel 226:252–262. https://doi.org/10.1016/j.fuel.2018.03.165
Wold MB, Connell LD, Choi SK (2008) The role of spatial variability in coal seam parameters on gas outburst behaviour during coal mining. Int J Coal Geol 75:1–14. https://doi.org/10.1016/j.coal.2008.01.006
Xie GX, Yin ZQ, Wang L, Hu ZX, Zhu CQ (2017) Effects of gas pressure on the failure characteristics of coal. Rock Mech Rock Eng 50:1711–1723. https://doi.org/10.1007/s00603-017-1194-2
Xie HP, Gao MZ, Zhang R, Peng GY, Wang WY, Li AQ (2019) Study on the mechanical properties and mechanical response of coal mining at 1000 m or deeper. Rock Mech Rock Eng 52:1475–1490. https://doi.org/10.1007/s00603-018-1509-y
Xue S, Yuan L, Wang YC, Xie J (2014) Numerical analyses of the major parameters affecting the initiation of outbursts of coal and gas. Rock Mech Rock Eng 47:1505–1510. https://doi.org/10.1007/s00603-013-0425-4
Yin GZ, Li MH, Wang JG, Xu J, Li WP (2015) Mechanical behavior and permeability evolution of gas infiltrated coals during protective layer mining. Int J Rock Mech Min Sci 80:292–301. https://doi.org/10.1016/j.ijrmms.2015.08.022
Zhang QH, Yuan L, Wang HP, Kang JH, Li SC, Xue JH, Zhou W, Zhang DM (2016) Establishment and analysis of similarity criteria for physical simulation of coal and gas outburst. J China Coal Soc 41:2773–2779
Zhang CL, Xu J, Peng SJ, Zhang XL, Liu XR, Chen YX (2018) Dynamic evolution of coal reservoir parameters in CBM extraction by parallel boreholes along coal seam. Transport Porous Med 124:1–19. https://doi.org/10.1007/s11242-018-1067-5
Zhao W, Cheng YP, Jiang HN, Jin K, Wang HF, Wang L (2016) Role of the rapid gas desorption of coal powders in the development stage of outbursts. J Nat Gas Sci Eng 28:491–501. https://doi.org/10.1016/j.jngse.2015.12.025
Zhao W, Cheng YP, Guo PK, Jin K, Tu QY, Wang HF (2017) An analysis of the gas-solid plug flow formation: new insights into the coal failure process during coal and gas outbursts. Powder Technol 305:39–47. https://doi.org/10.1016/j.powtec.2016.09.047
Zhao B, Wen GC, Sun HT, Yang HM, Cao J, Dai LC, Wang B (2018) Similarity criteria and coal-like material in coal and gas outburst physical simulation. Int J Coal Sci T 5:167–178. https://doi.org/10.1007/s40789-018-0203-8
Zhou HX, Gao J, Han K, Cheng YP (2018) Permeability enhancements of borehole outburst cavitation in outburst-prone coal seams. Int J Rock Mech Min Sci 111:12–20. https://doi.org/10.1016/j.ijrmms.2018.07.008
Zhou B, Xu J, Peng S, Yan FZ, Yang W, Cheng L, Ni GH (2019) Experimental analysis of the dynamic effects of coal-gas outburst and a protean contraction and expansion flow model. Nat Resour Res. https://doi.org/10.1007/s11053-019-09552-y
Acknowledgements
This work was supported by the National Science and Technology Major Project of China [No. 2016ZX05044002]; the National Natural Science Foundation of China [No. 51874055, 51974041]; and the China Postdoctoral Science Foundation [No. 2018M633317].
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Zhou, B., Xu, J., Peng, S. et al. Influence of Geo-stress on Dynamic Response Characteristics of Coal and Gas Outburst. Rock Mech Rock Eng 53, 4819–4837 (2020). https://doi.org/10.1007/s00603-020-02154-8
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DOI: https://doi.org/10.1007/s00603-020-02154-8