Effects of degraded durability on the long-term stability of in-service slopes with reinforced concreted support structures
文献类型：期刊论文
| 作者 | Ye, Wenya4; Ma, Yongzheng4; Qin, Cuigui1; Wang, Huajun1; Li, Chunguang2; Ding, Zhouxiang3 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2024-09-12 |
| 卷号 | 14期号:1页码:17 |
| 关键词 | In-service slopes RC support structures Durability model Model test Finite-element simulation Factor of safety |
| ISSN号 | 2045-2322 |
| DOI | 10.1038/s41598-024-70537-w |
| 英文摘要 | Engineering slope stability issues typically exhibit the impact of deteriorating durability on the susceptibility of slopes to failure. A thorough investigation was essential to explore theoretical and experimental aspects of slope durability degradation and its implications on long-term stability. Hence, a durability model was developed to accommodate slope stabilization using reinforced concrete (RC) support structures. This model was grounded in classical durability principles for RC structures. Subsequently, a model test was conducted to compare the responses of a standard slope model with a weakened counterpart subjected to environmental impacts. According to the proposed methodology for slope durability and stability, a case study involving future durability and stability predictions was performed. It was found that the theoretical solutions for the carbonation or neutralization (CN) velocity, depth, and penetration time agreed well with model test results. The slope surface displacements of the weakened slope with deteriorating coefficients between 0.6 and 0.9 were 4 to 8 times those of the standard slope, demonstrating significant degradation in stability. The case study indicated a steady reduction in the safety factor, at a rate of 2.3 to 2.4 parts per thousand per year throughout the slope's service life. Finite-element-based predictions also suggested the potential for corrosion of slope anchor bolts within 20 years and breakage within 30 years, at an average rate of 7.5 parts per thousand per year in the ultimate bearing capacity. These findings highlight the need for timely maintenance and reinforcement interventions to ensure the long-term durability of operational slopes. |
| 资助项目 | Chinese State Key Laboratory of GeoMechanics and Geotechnical Engineering[Z020020] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:001313165800035 |
| 出版者 | NATURE PORTFOLIO |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42611]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Ye, Wenya; Ma, Yongzheng |
| 作者单位 | 1.Zhejiang Engn Survey & Design Inst Grp Co Ltd, Ningbo 315012, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China 3.PRI Engn Corp, 920 28 St NE 22, Calgary, AB T2A 6K1, Canada 4.Ningbo Univ Technol, Ningbo 315211, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ye, Wenya,Ma, Yongzheng,Qin, Cuigui,et al. Effects of degraded durability on the long-term stability of in-service slopes with reinforced concreted support structures[J]. SCIENTIFIC REPORTS,2024,14(1):17. |
| APA | Ye, Wenya,Ma, Yongzheng,Qin, Cuigui,Wang, Huajun,Li, Chunguang,&Ding, Zhouxiang.(2024).Effects of degraded durability on the long-term stability of in-service slopes with reinforced concreted support structures.SCIENTIFIC REPORTS,14(1),17. |
| MLA | Ye, Wenya,et al."Effects of degraded durability on the long-term stability of in-service slopes with reinforced concreted support structures".SCIENTIFIC REPORTS 14.1(2024):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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