Brittle fracturing in low-porosity rock and implications to fault nucleation
We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Zhang, Yahui [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2021transfer abstract |
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| Übergeordnetes Werk: |
Enthalten in: A randomized controlled trial evaluating the effects of social networking on chronic disease management in rheumatoid arthritis - Lopez-Olivo, Maria A. ELSEVIER, 2022, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:285 ; year:2021 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.enggeo.2021.106025 |
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| 520 | |a We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. | ||
| 520 | |a We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. | ||
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10.1016/j.enggeo.2021.106025 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001355.pica (DE-627)ELV053628276 (ELSEVIER)S0013-7952(21)00036-3 DE-627 ger DE-627 rakwb eng 610 VZ 44.83 bkl Zhang, Yahui verfasserin aut Brittle fracturing in low-porosity rock and implications to fault nucleation 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. Wong, Louis Ngai Yuen oth Meng, Fanzhen oth Enthalten in Elsevier Science Lopez-Olivo, Maria A. ELSEVIER A randomized controlled trial evaluating the effects of social networking on chronic disease management in rheumatoid arthritis 2022 Amsterdam [u.a.] (DE-627)ELV008398631 volume:285 year:2021 pages:0 https://doi.org/10.1016/j.enggeo.2021.106025 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 285 2021 0 |
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10.1016/j.enggeo.2021.106025 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001355.pica (DE-627)ELV053628276 (ELSEVIER)S0013-7952(21)00036-3 DE-627 ger DE-627 rakwb eng 610 VZ 44.83 bkl Zhang, Yahui verfasserin aut Brittle fracturing in low-porosity rock and implications to fault nucleation 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. Wong, Louis Ngai Yuen oth Meng, Fanzhen oth Enthalten in Elsevier Science Lopez-Olivo, Maria A. ELSEVIER A randomized controlled trial evaluating the effects of social networking on chronic disease management in rheumatoid arthritis 2022 Amsterdam [u.a.] (DE-627)ELV008398631 volume:285 year:2021 pages:0 https://doi.org/10.1016/j.enggeo.2021.106025 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 285 2021 0 |
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10.1016/j.enggeo.2021.106025 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001355.pica (DE-627)ELV053628276 (ELSEVIER)S0013-7952(21)00036-3 DE-627 ger DE-627 rakwb eng 610 VZ 44.83 bkl Zhang, Yahui verfasserin aut Brittle fracturing in low-porosity rock and implications to fault nucleation 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. Wong, Louis Ngai Yuen oth Meng, Fanzhen oth Enthalten in Elsevier Science Lopez-Olivo, Maria A. ELSEVIER A randomized controlled trial evaluating the effects of social networking on chronic disease management in rheumatoid arthritis 2022 Amsterdam [u.a.] (DE-627)ELV008398631 volume:285 year:2021 pages:0 https://doi.org/10.1016/j.enggeo.2021.106025 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 285 2021 0 |
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10.1016/j.enggeo.2021.106025 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001355.pica (DE-627)ELV053628276 (ELSEVIER)S0013-7952(21)00036-3 DE-627 ger DE-627 rakwb eng 610 VZ 44.83 bkl Zhang, Yahui verfasserin aut Brittle fracturing in low-porosity rock and implications to fault nucleation 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. Wong, Louis Ngai Yuen oth Meng, Fanzhen oth Enthalten in Elsevier Science Lopez-Olivo, Maria A. ELSEVIER A randomized controlled trial evaluating the effects of social networking on chronic disease management in rheumatoid arthritis 2022 Amsterdam [u.a.] (DE-627)ELV008398631 volume:285 year:2021 pages:0 https://doi.org/10.1016/j.enggeo.2021.106025 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 285 2021 0 |
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10.1016/j.enggeo.2021.106025 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001355.pica (DE-627)ELV053628276 (ELSEVIER)S0013-7952(21)00036-3 DE-627 ger DE-627 rakwb eng 610 VZ 44.83 bkl Zhang, Yahui verfasserin aut Brittle fracturing in low-porosity rock and implications to fault nucleation 2021transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. Wong, Louis Ngai Yuen oth Meng, Fanzhen oth Enthalten in Elsevier Science Lopez-Olivo, Maria A. ELSEVIER A randomized controlled trial evaluating the effects of social networking on chronic disease management in rheumatoid arthritis 2022 Amsterdam [u.a.] (DE-627)ELV008398631 volume:285 year:2021 pages:0 https://doi.org/10.1016/j.enggeo.2021.106025 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.83 Rheumatologie Orthopädie VZ AR 285 2021 0 |
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Enthalten in A randomized controlled trial evaluating the effects of social networking on chronic disease management in rheumatoid arthritis Amsterdam [u.a.] volume:285 year:2021 pages:0 |
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brittle fracturing in low-porosity rock and implications to fault nucleation |
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Brittle fracturing in low-porosity rock and implications to fault nucleation |
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We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. |
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We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. |
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We present a two-dimensional conceptual model to investigate the mechanisms of brittle fracturing in low-porosity rock. Biaxial compression tests are simulated on rock specimens containing preexisting fractures, in which the local fracturing processes leading to fault nucleation are closely observed. The impact of fracture configuration and applied confining pressure on brittle fracturing behavior is particularly studied. The simulation results show that (1) reduction of the coordination number in a local region is an accurate indicator of the location, time and degree of local fracturing; (2) each preexisting fracture configuration develops its own local stress field significantly different from one another, which accounts for the differences in fracturing phenomena; (3) gradual modification of the local stress field promotes progressive fracturing, while stress release leads to significant local fracturing or no fracture by means of particulate flow. With the decreased overlap of preexisting fractures, a gradual transition from a band of damage zone linking the preexisting fractures to isolated damage zones enclosing the first-generation fractures is observed in the simulated scenarios. Based on field observations of damage zones and local stress field, two possible mechanisms of fault nucleation are illustrated. This study establishes a potential bridge between geological investigations of fault structures and the theoretical context of microfracture growth. |
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Brittle fracturing in low-porosity rock and implications to fault nucleation |
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