The material-structure duality of rock mass: Insight from numerical modeling

The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst). Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Li, Gen [verfasserIn] Cheng, Xiaofeng [verfasserIn] Hu, Lihua [verfasserIn] Tang, Chunan [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	Material failure Structural instability Competition-cooperation mechanism Numerical simulation

Übergeordnetes Werk:	Enthalten in: International journal of rock mechanics and mining sciences - Oxford : Pergamon, 1964, 144
Übergeordnetes Werk:	volume:144

DOI / URN:	10.1016/j.ijrmms.2021.104821

Katalog-ID:	ELV006306373

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245	1	0	\|a The material-structure duality of rock mass: Insight from numerical modeling
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520			\|a The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst).
650		4	\|a Material failure
650		4	\|a Structural instability
650		4	\|a Competition-cooperation mechanism
650		4	\|a Numerical simulation
700	1		\|a Cheng, Xiaofeng \|e verfasserin \|0 (orcid)0000-0002-0435-5736 \|4 aut
700	1		\|a Hu, Lihua \|e verfasserin \|0 (orcid)0000-0002-7201-4204 \|4 aut
700	1		\|a Tang, Chunan \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t International journal of rock mechanics and mining sciences \|d Oxford : Pergamon, 1964 \|g 144 \|h Online-Ressource \|w (DE-627)320571629 \|w (DE-600)2016557-2 \|w (DE-576)096806664 \|x 1873-4545 \|7 nnns
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allfields	10.1016/j.ijrmms.2021.104821 doi (DE-627)ELV006306373 (ELSEVIER)S1365-1609(21)00206-9 DE-627 ger DE-627 rda eng 690 550 DE-600 38.58 bkl 57.00 bkl Li, Gen verfasserin aut The material-structure duality of rock mass: Insight from numerical modeling 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst). Material failure Structural instability Competition-cooperation mechanism Numerical simulation Cheng, Xiaofeng verfasserin (orcid)0000-0002-0435-5736 aut Hu, Lihua verfasserin (orcid)0000-0002-7201-4204 aut Tang, Chunan verfasserin aut Enthalten in International journal of rock mechanics and mining sciences Oxford : Pergamon, 1964 144 Online-Ressource (DE-627)320571629 (DE-600)2016557-2 (DE-576)096806664 1873-4545 nnns volume:144 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.58 Geomechanik 57.00 Bergbau: Allgemeines AR 144
spelling	10.1016/j.ijrmms.2021.104821 doi (DE-627)ELV006306373 (ELSEVIER)S1365-1609(21)00206-9 DE-627 ger DE-627 rda eng 690 550 DE-600 38.58 bkl 57.00 bkl Li, Gen verfasserin aut The material-structure duality of rock mass: Insight from numerical modeling 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst). Material failure Structural instability Competition-cooperation mechanism Numerical simulation Cheng, Xiaofeng verfasserin (orcid)0000-0002-0435-5736 aut Hu, Lihua verfasserin (orcid)0000-0002-7201-4204 aut Tang, Chunan verfasserin aut Enthalten in International journal of rock mechanics and mining sciences Oxford : Pergamon, 1964 144 Online-Ressource (DE-627)320571629 (DE-600)2016557-2 (DE-576)096806664 1873-4545 nnns volume:144 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.58 Geomechanik 57.00 Bergbau: Allgemeines AR 144
allfields_unstemmed	10.1016/j.ijrmms.2021.104821 doi (DE-627)ELV006306373 (ELSEVIER)S1365-1609(21)00206-9 DE-627 ger DE-627 rda eng 690 550 DE-600 38.58 bkl 57.00 bkl Li, Gen verfasserin aut The material-structure duality of rock mass: Insight from numerical modeling 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst). Material failure Structural instability Competition-cooperation mechanism Numerical simulation Cheng, Xiaofeng verfasserin (orcid)0000-0002-0435-5736 aut Hu, Lihua verfasserin (orcid)0000-0002-7201-4204 aut Tang, Chunan verfasserin aut Enthalten in International journal of rock mechanics and mining sciences Oxford : Pergamon, 1964 144 Online-Ressource (DE-627)320571629 (DE-600)2016557-2 (DE-576)096806664 1873-4545 nnns volume:144 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.58 Geomechanik 57.00 Bergbau: Allgemeines AR 144
allfieldsGer	10.1016/j.ijrmms.2021.104821 doi (DE-627)ELV006306373 (ELSEVIER)S1365-1609(21)00206-9 DE-627 ger DE-627 rda eng 690 550 DE-600 38.58 bkl 57.00 bkl Li, Gen verfasserin aut The material-structure duality of rock mass: Insight from numerical modeling 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst). Material failure Structural instability Competition-cooperation mechanism Numerical simulation Cheng, Xiaofeng verfasserin (orcid)0000-0002-0435-5736 aut Hu, Lihua verfasserin (orcid)0000-0002-7201-4204 aut Tang, Chunan verfasserin aut Enthalten in International journal of rock mechanics and mining sciences Oxford : Pergamon, 1964 144 Online-Ressource (DE-627)320571629 (DE-600)2016557-2 (DE-576)096806664 1873-4545 nnns volume:144 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.58 Geomechanik 57.00 Bergbau: Allgemeines AR 144
allfieldsSound	10.1016/j.ijrmms.2021.104821 doi (DE-627)ELV006306373 (ELSEVIER)S1365-1609(21)00206-9 DE-627 ger DE-627 rda eng 690 550 DE-600 38.58 bkl 57.00 bkl Li, Gen verfasserin aut The material-structure duality of rock mass: Insight from numerical modeling 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst). Material failure Structural instability Competition-cooperation mechanism Numerical simulation Cheng, Xiaofeng verfasserin (orcid)0000-0002-0435-5736 aut Hu, Lihua verfasserin (orcid)0000-0002-7201-4204 aut Tang, Chunan verfasserin aut Enthalten in International journal of rock mechanics and mining sciences Oxford : Pergamon, 1964 144 Online-Ressource (DE-627)320571629 (DE-600)2016557-2 (DE-576)096806664 1873-4545 nnns volume:144 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.58 Geomechanik 57.00 Bergbau: Allgemeines AR 144
language	English
source	Enthalten in International journal of rock mechanics and mining sciences 144 volume:144
sourceStr	Enthalten in International journal of rock mechanics and mining sciences 144 volume:144
format_phy_str_mv	Article
bklname	Geomechanik Bergbau: Allgemeines
institution	findex.gbv.de
topic_facet	Material failure Structural instability Competition-cooperation mechanism Numerical simulation
dewey-raw	690
isfreeaccess_bool	false
container_title	International journal of rock mechanics and mining sciences
authorswithroles_txt_mv	Li, Gen @@aut@@ Cheng, Xiaofeng @@aut@@ Hu, Lihua @@aut@@ Tang, Chunan @@aut@@
publishDateDaySort_date	2021-01-01T00:00:00Z
hierarchy_top_id	320571629
dewey-sort	3690
id	ELV006306373
language_de	englisch
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The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. 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author	Li, Gen
spellingShingle	Li, Gen ddc 690 bkl 38.58 bkl 57.00 misc Material failure misc Structural instability misc Competition-cooperation mechanism misc Numerical simulation The material-structure duality of rock mass: Insight from numerical modeling
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topic_title	690 550 DE-600 38.58 bkl 57.00 bkl The material-structure duality of rock mass: Insight from numerical modeling Material failure Structural instability Competition-cooperation mechanism Numerical simulation
topic	ddc 690 bkl 38.58 bkl 57.00 misc Material failure misc Structural instability misc Competition-cooperation mechanism misc Numerical simulation
topic_unstemmed	ddc 690 bkl 38.58 bkl 57.00 misc Material failure misc Structural instability misc Competition-cooperation mechanism misc Numerical simulation
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title	The material-structure duality of rock mass: Insight from numerical modeling
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title_full	The material-structure duality of rock mass: Insight from numerical modeling
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title_sort	the material-structure duality of rock mass: insight from numerical modeling
title_auth	The material-structure duality of rock mass: Insight from numerical modeling
abstract	The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst).
abstractGer	The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst).
abstract_unstemmed	The roots of rock engineering disaster lie not only in cross-scale deterioration and failure of rock material, but also in large deformation and instability of rock discontinuities and structural bodies. The material-structure duality of rock mass influences the mechanical behavior of rock mass, resulting in continuous-discontinuous characteristics and singularity phenomena. Nevertheless, the cognition of the dominant transformation and cooperative effect between these complex mechanisms is still vague, and there is a lack of a numerical scheme considering both material and structral effects of rock. In this study, we constructed a unified numerical scheme (Rock failure and instability analysis, RFIA) that considers both material failure and structural instability of rock mass. By establishing the statistical meso-damage constitutive model, the damage and failure of rock materials were reflected, and by developing the finite deformation numerical formation considering current state response, the large deformation and instability of rock structural body were described. The proposed numerical scheme realized the synchronous simulation of both material failure induced instability, and structural instability induced failure of rock mass. The size effect on rock under uniaxial compression and the local collapse mechanism of the surrounding rock in deep slabbing tunnel were investigated by RFIA. Meanwhile, Rock failure analysis (RFA) that only considers rock material failure and Rock instability analysis (RIA) that only considers structural instability were performed in the simulations. The results show that there are dominant and competitive mechanisms between material failure and structural instability during failure and instability process of rock. For the rock structral body with dominant geometric features, its instability plays a decisive role in inducing catastrophe. The cooperative effect of material-structure is an important mechanism, which may result in large displacement and rotation of rock mass and the abrupt release of massive energy once instability induces the failure (e.g., in situation of rockburst).
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title_short	The material-structure duality of rock mass: Insight from numerical modeling
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The material-structure duality of rock mass: Insight from numerical modeling

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