Grain-based modeling study of time-dependent mechanical behavior of brittle rocks in deep underground caverns based on the stress corrosion model
文献类型：期刊论文
| 作者 | Huang, Shu-ling3; Ding, Xiu-li3; Lv, Quan-gang4; Liu, Xiu-yang1,2; Xu, Ding -ping2 |
| 刊名 | ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
 |
| 出版日期 | 2024-05-01 |
| 卷号 | 162页码:117-130 |
| 关键词 | Brittle rock Time -dependent mechanical properties Grain -based model Stress corrosion model Stress -strength ratio |
| ISSN号 | 0955-7997 |
| DOI | 10.1016/j.enganabound.2024.01.033 |
| 英文摘要 | Failure and instability in deep underground caverns, such as delayed rockburst and time -dependent deformations, are not immediate after excavation. These phenomena are closely linked to the complex stress conditions affecting deformation and fracture mechanisms in brittle rock over time. Therefore, understanding the mesoscopic evolution mechanism of time -dependent deformation and fracture in brittle rocks is crucial. This study conducted single -stage loading and creep experiments on marble in the Jinping I underground powerhouse to investigate the influence of stress levels and stress -strength ratios on time -dependent deformation and fracture using grain -based and parallel -bond stress corrosion models. Results indicate that the long-term stress strength ratio is governed by stress levels. Higher confining pressures have less impact on time -dependent deformation and fracture, resulting in longer failure time or even absence of failure. Conversely, higher stress -strength ratios significantly impact brittle rock, leading to shorter failure time. Increasing confining pressure or stress -strength ratio primarily controls the micro -evolution mechanism of time -dependent fracture in marble through the interaction between tensile and shear cracks. More tensile cracks decrease the number of shear cracks. Under larger load gradients, time -dependent deformations and failure decrease, resulting in longer unstable failure time. |
| 资助项目 | National Natural Science Foundation of China[51979268] ; National Natural Science Foundation of China[52279117] ; National Natural Science Foundation of China[U2340229] ; National Natural Science Foundation of China[51979008] ; Innovation team of Changjiang River Scientific Research Institute[CKSF2021715/YT] |
| WOS研究方向 | Engineering ; Mathematics |
| 语种 | 英语 |
| WOS记录号 | WOS:001181833400001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40771]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xu, Ding -ping |
| 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, Wuhan 430071, Peoples R China 3.Changjiang River Sci Res Inst, Minist Water Resources, Key Lab Geotech Mech & Engn, Wuhan 430010, Hubei, Peoples R China 4.China Commun Construct Co Ltd, Second Highway Consultants Co Ltd, Wuhan 430056, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Shu-ling,Ding, Xiu-li,Lv, Quan-gang,et al. Grain-based modeling study of time-dependent mechanical behavior of brittle rocks in deep underground caverns based on the stress corrosion model[J]. ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,2024,162:117-130. |
| APA | Huang, Shu-ling,Ding, Xiu-li,Lv, Quan-gang,Liu, Xiu-yang,&Xu, Ding -ping.(2024).Grain-based modeling study of time-dependent mechanical behavior of brittle rocks in deep underground caverns based on the stress corrosion model.ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,162,117-130. |
| MLA | Huang, Shu-ling,et al."Grain-based modeling study of time-dependent mechanical behavior of brittle rocks in deep underground caverns based on the stress corrosion model".ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS 162(2024):117-130. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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