Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing
Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxi...
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| Autor*in: |
Chen, Shuai [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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© International Association for Mathematical Geosciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| Übergeordnetes Werk: |
Enthalten in: Natural resources research - New York, NY [u.a.] : Springer Science + Business Media B.V., 1992, 32(2023), 3 vom: 31. März, Seite 1415-1433 |
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| Übergeordnetes Werk: |
volume:32 ; year:2023 ; number:3 ; day:31 ; month:03 ; pages:1415-1433 |
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| DOI / URN: |
10.1007/s11053-023-10191-7 |
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| Katalog-ID: |
SPR052434745 |
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| 520 | |a Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. The failure mode of coal samples transformed from dynamic failure to static failure after four $ LN_{2} $ fracturing cycles. | ||
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| 650 | 4 | |a Liquid nitrogen |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Cyclic fracturing |7 (dpeaa)DE-He213 | |
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| 700 | 1 | |a Song, Jingbo |4 aut | |
| 700 | 1 | |a Xu, Jianping |4 aut | |
| 700 | 1 | |a Han, Zepeng |4 aut | |
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10.1007/s11053-023-10191-7 doi (DE-627)SPR052434745 (SPR)s11053-023-10191-7-e DE-627 ger DE-627 rakwb eng Chen, Shuai verfasserin aut Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © International Association for Mathematical Geosciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. The failure mode of coal samples transformed from dynamic failure to static failure after four $ LN_{2} $ fracturing cycles. Rockburst (dpeaa)DE-He213 Bursting liability (dpeaa)DE-He213 Liquid nitrogen (dpeaa)DE-He213 Cyclic fracturing (dpeaa)DE-He213 Strength weakening (dpeaa)DE-He213 Dou, Linming aut Zhang, Lei (orcid)0000-0001-6561-1011 aut Song, Jingbo aut Xu, Jianping aut Han, Zepeng aut Enthalten in Natural resources research New York, NY [u.a.] : Springer Science + Business Media B.V., 1992 32(2023), 3 vom: 31. März, Seite 1415-1433 (DE-627)320587622 (DE-600)2018487-6 1573-8981 nnns volume:32 year:2023 number:3 day:31 month:03 pages:1415-1433 https://dx.doi.org/10.1007/s11053-023-10191-7 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_2008 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 32 2023 3 31 03 1415-1433 |
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10.1007/s11053-023-10191-7 doi (DE-627)SPR052434745 (SPR)s11053-023-10191-7-e DE-627 ger DE-627 rakwb eng Chen, Shuai verfasserin aut Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © International Association for Mathematical Geosciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. The failure mode of coal samples transformed from dynamic failure to static failure after four $ LN_{2} $ fracturing cycles. Rockburst (dpeaa)DE-He213 Bursting liability (dpeaa)DE-He213 Liquid nitrogen (dpeaa)DE-He213 Cyclic fracturing (dpeaa)DE-He213 Strength weakening (dpeaa)DE-He213 Dou, Linming aut Zhang, Lei (orcid)0000-0001-6561-1011 aut Song, Jingbo aut Xu, Jianping aut Han, Zepeng aut Enthalten in Natural resources research New York, NY [u.a.] : Springer Science + Business Media B.V., 1992 32(2023), 3 vom: 31. März, Seite 1415-1433 (DE-627)320587622 (DE-600)2018487-6 1573-8981 nnns volume:32 year:2023 number:3 day:31 month:03 pages:1415-1433 https://dx.doi.org/10.1007/s11053-023-10191-7 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_2008 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 32 2023 3 31 03 1415-1433 |
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10.1007/s11053-023-10191-7 doi (DE-627)SPR052434745 (SPR)s11053-023-10191-7-e DE-627 ger DE-627 rakwb eng Chen, Shuai verfasserin aut Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © International Association for Mathematical Geosciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. The failure mode of coal samples transformed from dynamic failure to static failure after four $ LN_{2} $ fracturing cycles. Rockburst (dpeaa)DE-He213 Bursting liability (dpeaa)DE-He213 Liquid nitrogen (dpeaa)DE-He213 Cyclic fracturing (dpeaa)DE-He213 Strength weakening (dpeaa)DE-He213 Dou, Linming aut Zhang, Lei (orcid)0000-0001-6561-1011 aut Song, Jingbo aut Xu, Jianping aut Han, Zepeng aut Enthalten in Natural resources research New York, NY [u.a.] : Springer Science + Business Media B.V., 1992 32(2023), 3 vom: 31. März, Seite 1415-1433 (DE-627)320587622 (DE-600)2018487-6 1573-8981 nnns volume:32 year:2023 number:3 day:31 month:03 pages:1415-1433 https://dx.doi.org/10.1007/s11053-023-10191-7 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_2008 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 32 2023 3 31 03 1415-1433 |
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10.1007/s11053-023-10191-7 doi (DE-627)SPR052434745 (SPR)s11053-023-10191-7-e DE-627 ger DE-627 rakwb eng Chen, Shuai verfasserin aut Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © International Association for Mathematical Geosciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. The failure mode of coal samples transformed from dynamic failure to static failure after four $ LN_{2} $ fracturing cycles. Rockburst (dpeaa)DE-He213 Bursting liability (dpeaa)DE-He213 Liquid nitrogen (dpeaa)DE-He213 Cyclic fracturing (dpeaa)DE-He213 Strength weakening (dpeaa)DE-He213 Dou, Linming aut Zhang, Lei (orcid)0000-0001-6561-1011 aut Song, Jingbo aut Xu, Jianping aut Han, Zepeng aut Enthalten in Natural resources research New York, NY [u.a.] : Springer Science + Business Media B.V., 1992 32(2023), 3 vom: 31. März, Seite 1415-1433 (DE-627)320587622 (DE-600)2018487-6 1573-8981 nnns volume:32 year:2023 number:3 day:31 month:03 pages:1415-1433 https://dx.doi.org/10.1007/s11053-023-10191-7 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_2008 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 32 2023 3 31 03 1415-1433 |
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10.1007/s11053-023-10191-7 doi (DE-627)SPR052434745 (SPR)s11053-023-10191-7-e DE-627 ger DE-627 rakwb eng Chen, Shuai verfasserin aut Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © International Association for Mathematical Geosciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. The failure mode of coal samples transformed from dynamic failure to static failure after four $ LN_{2} $ fracturing cycles. Rockburst (dpeaa)DE-He213 Bursting liability (dpeaa)DE-He213 Liquid nitrogen (dpeaa)DE-He213 Cyclic fracturing (dpeaa)DE-He213 Strength weakening (dpeaa)DE-He213 Dou, Linming aut Zhang, Lei (orcid)0000-0001-6561-1011 aut Song, Jingbo aut Xu, Jianping aut Han, Zepeng aut Enthalten in Natural resources research New York, NY [u.a.] : Springer Science + Business Media B.V., 1992 32(2023), 3 vom: 31. März, Seite 1415-1433 (DE-627)320587622 (DE-600)2018487-6 1573-8981 nnns volume:32 year:2023 number:3 day:31 month:03 pages:1415-1433 https://dx.doi.org/10.1007/s11053-023-10191-7 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_2008 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 32 2023 3 31 03 1415-1433 |
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Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. 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Chen, Shuai |
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Chen, Shuai misc Rockburst misc Bursting liability misc Liquid nitrogen misc Cyclic fracturing misc Strength weakening Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing |
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Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing Rockburst (dpeaa)DE-He213 Bursting liability (dpeaa)DE-He213 Liquid nitrogen (dpeaa)DE-He213 Cyclic fracturing (dpeaa)DE-He213 Strength weakening (dpeaa)DE-He213 |
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mechanism of reducing the bursting liability of coal using liquid nitrogen cyclic fracturing |
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Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing |
| abstract |
Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. The failure mode of coal samples transformed from dynamic failure to static failure after four $ LN_{2} $ fracturing cycles. © International Association for Mathematical Geosciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstractGer |
Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. The failure mode of coal samples transformed from dynamic failure to static failure after four $ LN_{2} $ fracturing cycles. © International Association for Mathematical Geosciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstract_unstemmed |
Abstract The liquid nitrogen ($ LN_{2} $) cyclic fracturing technology offers a novel approach to rockburst prevention. To study the effectiveness and feasibility of $ LN_{2} $ cyclic fracturing to reduce coal bursting liability, $ LN_{2} $ cyclic fracturing, ultrasonic velocimetry tests, and uniaxial compression experiments were carried out. Changes in P-wave velocity, porosity, and bursting liability indices, namely, dynamic fracture duration time (DFDT), uniaxial compressive strength (UCS), bursting energy index (BEI), and elastic strain energy index (ESEI), were studied. Moreover, acoustic emission (AE) and failure characteristics of coal were analyzed. Finally, the mechanism of strength weakening for reducing burst liability by $ LN_{2} $ cyclic fracturing is discussed. The results showed that $ LN_{2} $ cyclic fracturing can effectively cause the deterioration of coal samples, resulting in decrease of P-wave velocity by 25.92% and increase of porosity from 1.42 to 9.1%. After $ LN_{2} $ cyclic treatment, the bursting liability of coal samples was lowered considerably; coal DFDT rose significantly, whereas the post-peak phase of load-time curves dropped in a stepped pattern. After four times of $ LN_{2} $ fracturing, the UCS and BEI of coal samples decreased by 73.5% and 83.2%, respectively, and the ESEI declined from 2.85 to 1.06. The coal DFDT increased rapidly with decrease in P-wave velocity, while the UCS, BEI, and ESEI correlated positively with P-wave velocity. The AE activities of various $ LN_{2} $ cycle coal samples can be classified into fracture compaction stage, fracture steady growth stage, fracture unstable growth stage, and post-peak stage. Moreover, the cumulative AE energy declined with increase in $ LN_{2} $ cycles, while the proportion of post-peak AE energy increased in cycles. The failure mode of coal samples transformed from dynamic failure to static failure after four $ LN_{2} $ fracturing cycles. © International Association for Mathematical Geosciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| title_short |
Mechanism of Reducing the Bursting Liability of Coal using Liquid Nitrogen Cyclic Fracturing |
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https://dx.doi.org/10.1007/s11053-023-10191-7 |
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Dou, Linming Zhang, Lei Song, Jingbo Xu, Jianping Han, Zepeng |
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10.1007/s11053-023-10191-7 |
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|
| score |
7.40086 |