Sensitivity analysis of stability of anti-dip rock slope under fluctuating water level in the Three Gorges Reservoir Area
文献类型：期刊论文
| 作者 | Jiang, Wei1; Yi, Wu1; Han, Guodong2; Chen, Guanxiong1; Sun, Guanhua3 |
| 刊名 | REVISTA INTERNACIONAL DE METODOS NUMERICOS PARA CALCULO Y DISENO EN INGENIERIA
 |
| 出版日期 | 2024 |
| 卷号 | 40期号:1页码:13 |
| 关键词 | sensitivity analysis water level fluctuation anti-dip rock slope factor of safety seepage field cantilever limit equilibrium model |
| ISSN号 | 0213-1315 |
| DOI | 10.23967/j.rimni.2024.01.005 |
| 英文摘要 | The fluctuation of water levels in large reservoirs has long been recognized as a critical external factor that affects the stability of bank slopes. However, there have been limited studies investigating the influence of reservoir water level (RWL) fluctuation on anti-dip layered rock slopes. In this study, we constructed a conceptual model by selecting the sandstone in the Three Gorges Reservoir Area (TRGA) as the strata and considering and slope height. Through seepage-stress field coupled analysis, we obtained the seepage field and groundwater lines, and determined the factor of safety (FoS) using the improved cantilever beam limit equilibrium method. We then investigated the variations of the groundwater line and FoS throughout the entire process of RWL rising and drawdown. Our results indicate that the changes in groundwater levels in the slope clearly lag behind RWL fluctuations, with stability improving during the rising stage but deteriorating during the drawdown stage. Range analysis, using the maximum curvature (MaxCurve) of the groundwater level line as the reference, reveals that the permeability coefficient has the most significant impact on the lagging effect, followed by the fluctuation rate, thickness, and dip angle. Similarly, when considering the amplitude of variation in FoS during the entire process of RWL rising and drawdown as the reference, range analysis shows that the permeability coefficient has the greatest impact on stability variation, followed by the fluctuation rate, thickness, dip angle, and slope height. |
| 资助项目 | National Natural Science Foundation of China[U22A20660] ; National Natural Science Foundation of China[52079070] ; Open Research Program of the Hubei Key Laboratory of Disaster Prevention and Mitigation (China Three Gorges University)[2022KJZ07] |
| WOS研究方向 | Engineering ; Mathematics |
| 语种 | 英语 |
| WOS记录号 | WOS:001179732300001 |
| 出版者 | SCIPEDIA S L |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40936]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Han, Guodong |
| 作者单位 | 1.Minist Educ, Key Lab Geol Hazards Three Gorges Reservoir Area, Yichang 443002, Peoples R China 2.Hubei Key Lab Disaster Prevent & Mitigat, Yichang 443002, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Wei,Yi, Wu,Han, Guodong,et al. Sensitivity analysis of stability of anti-dip rock slope under fluctuating water level in the Three Gorges Reservoir Area[J]. REVISTA INTERNACIONAL DE METODOS NUMERICOS PARA CALCULO Y DISENO EN INGENIERIA,2024,40(1):13. |
| APA | Jiang, Wei,Yi, Wu,Han, Guodong,Chen, Guanxiong,&Sun, Guanhua.(2024).Sensitivity analysis of stability of anti-dip rock slope under fluctuating water level in the Three Gorges Reservoir Area.REVISTA INTERNACIONAL DE METODOS NUMERICOS PARA CALCULO Y DISENO EN INGENIERIA,40(1),13. |
| MLA | Jiang, Wei,et al."Sensitivity analysis of stability of anti-dip rock slope under fluctuating water level in the Three Gorges Reservoir Area".REVISTA INTERNACIONAL DE METODOS NUMERICOS PARA CALCULO Y DISENO EN INGENIERIA 40.1(2024):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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