Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures
Abstract In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with diff...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Liu, Weitao [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s), under exclusive licence to Springer Nature Switzerland AG 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: Geotechnical and geological engineering - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1983, 42(2023), 1 vom: 04. Aug., Seite 451-463 |
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| Übergeordnetes Werk: |
volume:42 ; year:2023 ; number:1 ; day:04 ; month:08 ; pages:451-463 |
| Links: |
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| DOI / URN: |
10.1007/s10706-023-02582-7 |
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| Katalog-ID: |
SPR054690366 |
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| 520 | |a Abstract In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure. | ||
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10.1007/s10706-023-02582-7 doi (DE-627)SPR054690366 (SPR)s10706-023-02582-7-e DE-627 ger DE-627 rakwb eng Liu, Weitao verfasserin aut Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 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 In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure. Rock-like specimen (dpeaa)DE-He213 Initial crack angles (dpeaa)DE-He213 Permeability (dpeaa)DE-He213 Failure properties (dpeaa)DE-He213 Triaxial loading seepage test (dpeaa)DE-He213 Shangguan, Zeyu aut Shen, Jianjun (orcid)0000-0002-6596-5378 aut Gao, Chuanpeng aut Enthalten in Geotechnical and geological engineering Dordrecht [u.a.] : Springer Science + Business Media B.V, 1983 42(2023), 1 vom: 04. Aug., Seite 451-463 (DE-627)312847475 (DE-600)2012363-2 1573-1529 nnns volume:42 year:2023 number:1 day:04 month:08 pages:451-463 https://dx.doi.org/10.1007/s10706-023-02582-7 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 42 2023 1 04 08 451-463 |
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10.1007/s10706-023-02582-7 doi (DE-627)SPR054690366 (SPR)s10706-023-02582-7-e DE-627 ger DE-627 rakwb eng Liu, Weitao verfasserin aut Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 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 In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure. Rock-like specimen (dpeaa)DE-He213 Initial crack angles (dpeaa)DE-He213 Permeability (dpeaa)DE-He213 Failure properties (dpeaa)DE-He213 Triaxial loading seepage test (dpeaa)DE-He213 Shangguan, Zeyu aut Shen, Jianjun (orcid)0000-0002-6596-5378 aut Gao, Chuanpeng aut Enthalten in Geotechnical and geological engineering Dordrecht [u.a.] : Springer Science + Business Media B.V, 1983 42(2023), 1 vom: 04. Aug., Seite 451-463 (DE-627)312847475 (DE-600)2012363-2 1573-1529 nnns volume:42 year:2023 number:1 day:04 month:08 pages:451-463 https://dx.doi.org/10.1007/s10706-023-02582-7 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 42 2023 1 04 08 451-463 |
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10.1007/s10706-023-02582-7 doi (DE-627)SPR054690366 (SPR)s10706-023-02582-7-e DE-627 ger DE-627 rakwb eng Liu, Weitao verfasserin aut Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 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 In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure. Rock-like specimen (dpeaa)DE-He213 Initial crack angles (dpeaa)DE-He213 Permeability (dpeaa)DE-He213 Failure properties (dpeaa)DE-He213 Triaxial loading seepage test (dpeaa)DE-He213 Shangguan, Zeyu aut Shen, Jianjun (orcid)0000-0002-6596-5378 aut Gao, Chuanpeng aut Enthalten in Geotechnical and geological engineering Dordrecht [u.a.] : Springer Science + Business Media B.V, 1983 42(2023), 1 vom: 04. Aug., Seite 451-463 (DE-627)312847475 (DE-600)2012363-2 1573-1529 nnns volume:42 year:2023 number:1 day:04 month:08 pages:451-463 https://dx.doi.org/10.1007/s10706-023-02582-7 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 42 2023 1 04 08 451-463 |
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10.1007/s10706-023-02582-7 doi (DE-627)SPR054690366 (SPR)s10706-023-02582-7-e DE-627 ger DE-627 rakwb eng Liu, Weitao verfasserin aut Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 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 In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure. Rock-like specimen (dpeaa)DE-He213 Initial crack angles (dpeaa)DE-He213 Permeability (dpeaa)DE-He213 Failure properties (dpeaa)DE-He213 Triaxial loading seepage test (dpeaa)DE-He213 Shangguan, Zeyu aut Shen, Jianjun (orcid)0000-0002-6596-5378 aut Gao, Chuanpeng aut Enthalten in Geotechnical and geological engineering Dordrecht [u.a.] : Springer Science + Business Media B.V, 1983 42(2023), 1 vom: 04. Aug., Seite 451-463 (DE-627)312847475 (DE-600)2012363-2 1573-1529 nnns volume:42 year:2023 number:1 day:04 month:08 pages:451-463 https://dx.doi.org/10.1007/s10706-023-02582-7 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 42 2023 1 04 08 451-463 |
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10.1007/s10706-023-02582-7 doi (DE-627)SPR054690366 (SPR)s10706-023-02582-7-e DE-627 ger DE-627 rakwb eng Liu, Weitao verfasserin aut Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 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 In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure. Rock-like specimen (dpeaa)DE-He213 Initial crack angles (dpeaa)DE-He213 Permeability (dpeaa)DE-He213 Failure properties (dpeaa)DE-He213 Triaxial loading seepage test (dpeaa)DE-He213 Shangguan, Zeyu aut Shen, Jianjun (orcid)0000-0002-6596-5378 aut Gao, Chuanpeng aut Enthalten in Geotechnical and geological engineering Dordrecht [u.a.] : Springer Science + Business Media B.V, 1983 42(2023), 1 vom: 04. Aug., Seite 451-463 (DE-627)312847475 (DE-600)2012363-2 1573-1529 nnns volume:42 year:2023 number:1 day:04 month:08 pages:451-463 https://dx.doi.org/10.1007/s10706-023-02582-7 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 42 2023 1 04 08 451-463 |
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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 In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Rock-like specimen</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Initial crack angles</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Permeability</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Failure properties</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Triaxial loading seepage test</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Shangguan, Zeyu</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Shen, Jianjun</subfield><subfield code="0">(orcid)0000-0002-6596-5378</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gao, Chuanpeng</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Geotechnical and geological engineering</subfield><subfield code="d">Dordrecht [u.a.] : Springer Science + Business Media B.V, 1983</subfield><subfield code="g">42(2023), 1 vom: 04. 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Liu, Weitao |
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Liu, Weitao misc Rock-like specimen misc Initial crack angles misc Permeability misc Failure properties misc Triaxial loading seepage test Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures |
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Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures Rock-like specimen (dpeaa)DE-He213 Initial crack angles (dpeaa)DE-He213 Permeability (dpeaa)DE-He213 Failure properties (dpeaa)DE-He213 Triaxial loading seepage test (dpeaa)DE-He213 |
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Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures |
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mechanical and seepage properties of rock-like specimens with inclined fractures |
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Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures |
| abstract |
Abstract In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 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 In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 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 In this investigation, we study the failure mode and seepage law of confined water with fractured rock mass in the coal seam floor under stress and seepage conditions. To simulate the working properties of real rock, fabricating the rock-like specimens containing a single fracture with different obliquity of 0°, 15°, 30°, 45°, 60°, 75°, 90°. Those specimens are used to conduct triaxial loading seepage tests. After this, the theoretical model of open-type flaw under compression-shear loading was established to study the relationship between initial crack angles and prefabricated fracture angles. The results show that the stress peaks of the specimen with 45° increase with the growth of confining pressure. The relationship between compressive strength and the confining pressure conforms to the linear growth model of y = 5.25x -3.2 (R2 = 0.98). Due to the seepage and confining pressure implications, the initial crack angles of specimens decreased with the confining pressure growth. The peak strength of the specimens grew with the increase of prefabricated fracture angle. The permeability of the specimen with below 45° prefabricated fracture increases slowly with the growth of the axial strain, but its 45°–90° decreases first and then increases with the growth of the axial strain. Furthermore, under the seepage pressure in the fracture, as for 30°–60° of prefabricated fracture specimens, its initial crack angles are mainly concentrated between 60°–70° which is consistent with the results of the 70° crack initiation angle of the rock-like specimens with 45° prefabricated fracture angle in 3 MPa confining pressure. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 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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Mechanical and Seepage Properties of Rock-like Specimens with Inclined Fractures |
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https://dx.doi.org/10.1007/s10706-023-02582-7 |
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Shangguan, Zeyu Shen, Jianjun Gao, Chuanpeng |
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Shangguan, Zeyu Shen, Jianjun Gao, Chuanpeng |
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| score |
7.40149 |