Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine
Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydrau...
Ausführliche Beschreibung
Autor*in: |
Niu, Xiaohong [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2022 |
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Anmerkung: |
© The Author(s), under exclusive licence to Springer Nature B.V. 2022 |
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Übergeordnetes Werk: |
Enthalten in: Natural hazards - Dordrecht [u.a.] : Springer Science + Business Media B.V., 1988, 113(2022), 3 vom: 19. Mai, Seite 1783-1802 |
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Übergeordnetes Werk: |
volume:113 ; year:2022 ; number:3 ; day:19 ; month:05 ; pages:1783-1802 |
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DOI / URN: |
10.1007/s11069-022-05369-w |
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Katalog-ID: |
SPR048138924 |
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520 | |a Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. The results provided references for understanding the evolution process of similar inrush hazards. | ||
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10.1007/s11069-022-05369-w doi (DE-627)SPR048138924 (SPR)s11069-022-05369-w-e DE-627 ger DE-627 rakwb eng Niu, Xiaohong verfasserin aut Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2022 Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. The results provided references for understanding the evolution process of similar inrush hazards. Numerical simulation (dpeaa)DE-He213 Nonlinear flow (dpeaa)DE-He213 Plastic zone (dpeaa)DE-He213 Preferential pathway (dpeaa)DE-He213 Goaf water inrush (dpeaa)DE-He213 Feng, Guorui (orcid)0000-0002-0686-1376 aut Liu, Qin aut Han, Yanna aut Qian, Ruipeng aut Enthalten in Natural hazards Dordrecht [u.a.] : Springer Science + Business Media B.V., 1988 113(2022), 3 vom: 19. Mai, Seite 1783-1802 (DE-627)315621729 (DE-600)2017806-2 1573-0840 nnns volume:113 year:2022 number:3 day:19 month:05 pages:1783-1802 https://dx.doi.org/10.1007/s11069-022-05369-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 113 2022 3 19 05 1783-1802 |
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10.1007/s11069-022-05369-w doi (DE-627)SPR048138924 (SPR)s11069-022-05369-w-e DE-627 ger DE-627 rakwb eng Niu, Xiaohong verfasserin aut Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2022 Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. The results provided references for understanding the evolution process of similar inrush hazards. Numerical simulation (dpeaa)DE-He213 Nonlinear flow (dpeaa)DE-He213 Plastic zone (dpeaa)DE-He213 Preferential pathway (dpeaa)DE-He213 Goaf water inrush (dpeaa)DE-He213 Feng, Guorui (orcid)0000-0002-0686-1376 aut Liu, Qin aut Han, Yanna aut Qian, Ruipeng aut Enthalten in Natural hazards Dordrecht [u.a.] : Springer Science + Business Media B.V., 1988 113(2022), 3 vom: 19. Mai, Seite 1783-1802 (DE-627)315621729 (DE-600)2017806-2 1573-0840 nnns volume:113 year:2022 number:3 day:19 month:05 pages:1783-1802 https://dx.doi.org/10.1007/s11069-022-05369-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 113 2022 3 19 05 1783-1802 |
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10.1007/s11069-022-05369-w doi (DE-627)SPR048138924 (SPR)s11069-022-05369-w-e DE-627 ger DE-627 rakwb eng Niu, Xiaohong verfasserin aut Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2022 Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. The results provided references for understanding the evolution process of similar inrush hazards. Numerical simulation (dpeaa)DE-He213 Nonlinear flow (dpeaa)DE-He213 Plastic zone (dpeaa)DE-He213 Preferential pathway (dpeaa)DE-He213 Goaf water inrush (dpeaa)DE-He213 Feng, Guorui (orcid)0000-0002-0686-1376 aut Liu, Qin aut Han, Yanna aut Qian, Ruipeng aut Enthalten in Natural hazards Dordrecht [u.a.] : Springer Science + Business Media B.V., 1988 113(2022), 3 vom: 19. Mai, Seite 1783-1802 (DE-627)315621729 (DE-600)2017806-2 1573-0840 nnns volume:113 year:2022 number:3 day:19 month:05 pages:1783-1802 https://dx.doi.org/10.1007/s11069-022-05369-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 113 2022 3 19 05 1783-1802 |
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10.1007/s11069-022-05369-w doi (DE-627)SPR048138924 (SPR)s11069-022-05369-w-e DE-627 ger DE-627 rakwb eng Niu, Xiaohong verfasserin aut Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2022 Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. The results provided references for understanding the evolution process of similar inrush hazards. Numerical simulation (dpeaa)DE-He213 Nonlinear flow (dpeaa)DE-He213 Plastic zone (dpeaa)DE-He213 Preferential pathway (dpeaa)DE-He213 Goaf water inrush (dpeaa)DE-He213 Feng, Guorui (orcid)0000-0002-0686-1376 aut Liu, Qin aut Han, Yanna aut Qian, Ruipeng aut Enthalten in Natural hazards Dordrecht [u.a.] : Springer Science + Business Media B.V., 1988 113(2022), 3 vom: 19. Mai, Seite 1783-1802 (DE-627)315621729 (DE-600)2017806-2 1573-0840 nnns volume:113 year:2022 number:3 day:19 month:05 pages:1783-1802 https://dx.doi.org/10.1007/s11069-022-05369-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 113 2022 3 19 05 1783-1802 |
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10.1007/s11069-022-05369-w doi (DE-627)SPR048138924 (SPR)s11069-022-05369-w-e DE-627 ger DE-627 rakwb eng Niu, Xiaohong verfasserin aut Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature B.V. 2022 Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. The results provided references for understanding the evolution process of similar inrush hazards. Numerical simulation (dpeaa)DE-He213 Nonlinear flow (dpeaa)DE-He213 Plastic zone (dpeaa)DE-He213 Preferential pathway (dpeaa)DE-He213 Goaf water inrush (dpeaa)DE-He213 Feng, Guorui (orcid)0000-0002-0686-1376 aut Liu, Qin aut Han, Yanna aut Qian, Ruipeng aut Enthalten in Natural hazards Dordrecht [u.a.] : Springer Science + Business Media B.V., 1988 113(2022), 3 vom: 19. Mai, Seite 1783-1802 (DE-627)315621729 (DE-600)2017806-2 1573-0840 nnns volume:113 year:2022 number:3 day:19 month:05 pages:1783-1802 https://dx.doi.org/10.1007/s11069-022-05369-w lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 113 2022 3 19 05 1783-1802 |
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To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. 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Niu, Xiaohong |
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Niu, Xiaohong misc Numerical simulation misc Nonlinear flow misc Plastic zone misc Preferential pathway misc Goaf water inrush Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine |
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Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine Numerical simulation (dpeaa)DE-He213 Nonlinear flow (dpeaa)DE-He213 Plastic zone (dpeaa)DE-He213 Preferential pathway (dpeaa)DE-He213 Goaf water inrush (dpeaa)DE-He213 |
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numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of dongyu coal mine |
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Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine |
abstract |
Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. The results provided references for understanding the evolution process of similar inrush hazards. © The Author(s), under exclusive licence to Springer Nature B.V. 2022 |
abstractGer |
Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. The results provided references for understanding the evolution process of similar inrush hazards. © The Author(s), under exclusive licence to Springer Nature B.V. 2022 |
abstract_unstemmed |
Abstract Goaf water inrush has become one of the most prominent issues threatening the safety production of coal mines. To better understand how this hazard develops, a mechanical model and a nonlinear flow model were used to study an inrush that occurred in Dongyu mine. Based on the dominant hydraulic characteristics of groundwater in the fractured rock and the variation of plastic zone during excavation, an equivalent water inrush channel (WIC) was established. By coupling Darcy flow, Brinkman flow, and turbulent flow, the nonlinear flow model reproduced the dynamic process of goaf water inrush. Results showed that the inrush was a result of the combined effect of excavation disturbance and hydraulic pressure of goaf water. With the digging of roadway, fractures in the floor communicated with fractures in the roof of goaf, promoting the generation of WIC. Under the action of hydraulic pressure, groundwater entered into the roadway from the caving goaf along WIC and the disaster occurred. Along the flow path, water pressure continued to decrease, while velocity showed an increasing trend, but both of them remained stable in the roadway. In addition, as a transition area of laminar in caving goaf and turbulent in roadway, the permeability of WIC had a significant impact on the evolution of water pressure and velocity along the flow path. The results provided references for understanding the evolution process of similar inrush hazards. © The Author(s), under exclusive licence to Springer Nature B.V. 2022 |
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Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine |
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https://dx.doi.org/10.1007/s11069-022-05369-w |
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Feng, Guorui Liu, Qin Han, Yanna Qian, Ruipeng |
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10.1007/s11069-022-05369-w |
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2024-07-03T17:15:36.271Z |
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score |
7.3997297 |