Development and application of rock rheological constitutive model considering dynamic stress field and seepage field
The generalized rheological tests on sandstone were conducted under both dynamic stress and seepage fields. The results demonstrate that the rheological strain of the specimen under increased stress conditions is greater than that under creep conditions, indicating that the dynamic stress field sign...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | International Journal of Mining Science and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S209526862500031X |
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| author | Yian Chen Guangming Zhao Wensong Xu Shoujian Peng Jiang Xu |
| author_facet | Yian Chen Guangming Zhao Wensong Xu Shoujian Peng Jiang Xu |
| author_sort | Yian Chen |
| collection | DOAJ |
| description | The generalized rheological tests on sandstone were conducted under both dynamic stress and seepage fields. The results demonstrate that the rheological strain of the specimen under increased stress conditions is greater than that under creep conditions, indicating that the dynamic stress field significantly influences the rheological behaviours of sandstone. Following the rheological tests, the number of small pores in the sandstone decreased, while the number of medium-sized pores increased, forming new seepage channels. The high initial rheological stress accelerated fracture compression and the closure of seepage channels, resulting in reduction in the permeability of sandstone. Based on the principles of generalized rheology and the experimental findings, a novel rock rheological constitutive model incorporating both the dynamic stress field and seepage properties has been developed. Numerical simulations of surrounding rock deformation in geotechnical engineering were carried out using a secondary development version of this model, which confirmed the applicability of the generalized rheological numerical simulation method. These results provide theoretical support for the long-term stability evaluation of engineering rock masses and for predicting the deformation of surrounding rock. |
| format | Article |
| id | doaj-art-fb23a051795f4ea19daf4921067d439d |
| institution | DOAJ |
| issn | 2095-2686 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Mining Science and Technology |
| spelling | doaj-art-fb23a051795f4ea19daf4921067d439d2025-08-20T02:53:40ZengElsevierInternational Journal of Mining Science and Technology2095-26862025-03-0135346748210.1016/j.ijmst.2025.02.002Development and application of rock rheological constitutive model considering dynamic stress field and seepage fieldYian Chen0Guangming Zhao1Wensong Xu2Shoujian Peng3Jiang Xu4Key Laboratory of Safe and Effective Coal Mining Ministry of Education, Anhui University of Science and Technology, Huainan 232001, ChinaKey Laboratory of Safe and Effective Coal Mining Ministry of Education, Anhui University of Science and Technology, Huainan 232001, China; Corresponding author.Key Laboratory of Safe and Effective Coal Mining Ministry of Education, Anhui University of Science and Technology, Huainan 232001, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, ChinaThe generalized rheological tests on sandstone were conducted under both dynamic stress and seepage fields. The results demonstrate that the rheological strain of the specimen under increased stress conditions is greater than that under creep conditions, indicating that the dynamic stress field significantly influences the rheological behaviours of sandstone. Following the rheological tests, the number of small pores in the sandstone decreased, while the number of medium-sized pores increased, forming new seepage channels. The high initial rheological stress accelerated fracture compression and the closure of seepage channels, resulting in reduction in the permeability of sandstone. Based on the principles of generalized rheology and the experimental findings, a novel rock rheological constitutive model incorporating both the dynamic stress field and seepage properties has been developed. Numerical simulations of surrounding rock deformation in geotechnical engineering were carried out using a secondary development version of this model, which confirmed the applicability of the generalized rheological numerical simulation method. These results provide theoretical support for the long-term stability evaluation of engineering rock masses and for predicting the deformation of surrounding rock.http://www.sciencedirect.com/science/article/pii/S209526862500031XGeneralized rheological testSeepage-stress couplingSeepage propertiesDynamic stress fieldRheological constitutive model |
| spellingShingle | Yian Chen Guangming Zhao Wensong Xu Shoujian Peng Jiang Xu Development and application of rock rheological constitutive model considering dynamic stress field and seepage field International Journal of Mining Science and Technology Generalized rheological test Seepage-stress coupling Seepage properties Dynamic stress field Rheological constitutive model |
| title | Development and application of rock rheological constitutive model considering dynamic stress field and seepage field |
| title_full | Development and application of rock rheological constitutive model considering dynamic stress field and seepage field |
| title_fullStr | Development and application of rock rheological constitutive model considering dynamic stress field and seepage field |
| title_full_unstemmed | Development and application of rock rheological constitutive model considering dynamic stress field and seepage field |
| title_short | Development and application of rock rheological constitutive model considering dynamic stress field and seepage field |
| title_sort | development and application of rock rheological constitutive model considering dynamic stress field and seepage field |
| topic | Generalized rheological test Seepage-stress coupling Seepage properties Dynamic stress field Rheological constitutive model |
| url | http://www.sciencedirect.com/science/article/pii/S209526862500031X |
| work_keys_str_mv | AT yianchen developmentandapplicationofrockrheologicalconstitutivemodelconsideringdynamicstressfieldandseepagefield AT guangmingzhao developmentandapplicationofrockrheologicalconstitutivemodelconsideringdynamicstressfieldandseepagefield AT wensongxu developmentandapplicationofrockrheologicalconstitutivemodelconsideringdynamicstressfieldandseepagefield AT shoujianpeng developmentandapplicationofrockrheologicalconstitutivemodelconsideringdynamicstressfieldandseepagefield AT jiangxu developmentandapplicationofrockrheologicalconstitutivemodelconsideringdynamicstressfieldandseepagefield |