Influence analysis on the shear behaviour and failure mode of grout-filled jointed rock using 3D DEM coupled with the cohesive zone model
文献类型：期刊论文
| 作者 | Liu, Xuewei2; Deng, Wei1,2; Liu, Bin2; Liu, Quansheng3; Zhu, Yuanguang2; Fan, Ying1 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 155期号:-页码:- |
| ISSN号 | 0266-352X |
| 关键词 | Grout-filled Jointed rock mass discrete element method (DEM) Cohesive zone model Numerical simulation |
| 英文摘要 | Grouting is one of the primary methods used to reinforce the strength of fractured rock masses. In this study, a three-dimensional discrete element method (3D Co-DEM) grouted joint shear model, which consists of upper and lower intact rock blocks, 3D real joint surfaces and a grout-filled layer, was developed with the cohesive zone model. The 3D real joint surface was imported into the model using 3D scanning point cloud data, and the grout-filled layer was described by a cohesive zone model. Then, a numerical simulation algorithm was developed to implement the numerical direct shear test and grout-filled layer cracking simulation. Also, the parameters of the proposed method were calibrated, and the effectiveness of the cohesive zone model and direct shear numerical test were verified by comparison with analytical and experimental results. Finally, grouted jointed specimens with regular sawtooth were used to analyse the influencing factors of shear characteristics. Numerical tests showed that shear peak strength and residual strength decrease with increasing grout water-cement ratio but increase with increasing JRC. Specifically, with increasing sawtooth inclination angle, the shear peak strength first decreases and then increases, while the peak shear strength increases as the sawtooth height increases. |
| 学科主题 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000908448100001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35140]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 3.The Key Laboratory of Safety for Geotechnical and Structural Engineering of Hubei Province, School of Civil Engineering, Wuhan University, Wuhan 430072, China |
| 推荐引用方式 GB/T 7714 | Liu, Xuewei,Deng, Wei,Liu, Bin,et al. Influence analysis on the shear behaviour and failure mode of grout-filled jointed rock using 3D DEM coupled with the cohesive zone model[J]. COMPUTERS AND GEOTECHNICS,2023,155(-):-. |
| APA | Liu, Xuewei,Deng, Wei,Liu, Bin,Liu, Quansheng,Zhu, Yuanguang,&Fan, Ying.(2023).Influence analysis on the shear behaviour and failure mode of grout-filled jointed rock using 3D DEM coupled with the cohesive zone model.COMPUTERS AND GEOTECHNICS,155(-),-. |
| MLA | Liu, Xuewei,et al."Influence analysis on the shear behaviour and failure mode of grout-filled jointed rock using 3D DEM coupled with the cohesive zone model".COMPUTERS AND GEOTECHNICS 155.-(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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