Excavation damage mechanism of deep buried layered fractured rock mass based on three-dimensional bonded block damage model
文献类型：期刊论文
| 作者 | Xie, Zhenkun1,2; Qiu, Shili2; Li, Shaojun2; Jiang, Quan2; Xu, Dingping2; Zheng, Minzong2 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 180页码:20 |
| 关键词 | Deep buried mine engineering Layered fractured rock mass Three-dimensional bonded block damage model Roadway excavation |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2025.107101 |
| 英文摘要 | Under complex mineralization, the geological environment of deep mining projects is often accompanied by fractured rock masses. The existence of structural planes and cracks control the mechanical behavior of fractured rock masses. To describe the mechanical response mechanism of deep buried fractured rock mass, a threedimensional bonded block damage constitutive model (BBDM) is proposed in this paper. Based on the damage characteristics of rock mass, the model will degrade the tensile strength, cohesion, dilation angle, normal and shear stiffness parameters of the joint based on the fracture energy value when the joint is in tension and shear yield state, and make the model eventually degenerate into a pure friction Mohr-Coulomb model under zero cohesion. Meanwhile, taking a deep buried roadway excavation project as the research background, the 610 m main slope excavation process is simulated by using the BBDM. Combined with the field test results, the stress, displacement and joint damage law of the surrounding rock excavation process are analyzed. The results show that in the closer position to the side wall, the potential interlayer fracture damage is larger, and the damage mechanism is mainly tensile damage. With the increase of the distance from the side wall, the damage degree gradually decreases, and the damage mechanism becomes mainly compressive shear damage, and eventually transitions to the state of no damage to the cracks. The research results reveal the damage process and failure mechanism of interlayer fracture in fractured rock bodies, which deepens the understanding of the mechanical response of deeply buried fractured rock masses and is significant for ensuring the stability of surrounding rocks and the safe and efficient production of the mining area. |
| 资助项目 | National Natural Science Founda-tion of China[42377172] ; National Natural Science Founda-tion of China[52279117] ; National Key Research and Development Plan Project of China[2023YFC2907204] |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001419810100001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36984]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Qiu, Shili |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn Safety, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Zhenkun,Qiu, Shili,Li, Shaojun,et al. Excavation damage mechanism of deep buried layered fractured rock mass based on three-dimensional bonded block damage model[J]. COMPUTERS AND GEOTECHNICS,2025,180:20. |
| APA | Xie, Zhenkun,Qiu, Shili,Li, Shaojun,Jiang, Quan,Xu, Dingping,&Zheng, Minzong.(2025).Excavation damage mechanism of deep buried layered fractured rock mass based on three-dimensional bonded block damage model.COMPUTERS AND GEOTECHNICS,180,20. |
| MLA | Xie, Zhenkun,et al."Excavation damage mechanism of deep buried layered fractured rock mass based on three-dimensional bonded block damage model".COMPUTERS AND GEOTECHNICS 180(2025):20. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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