Experimental and theoretical investigations of ground settlement around submerged defective pipelines
文献类型：期刊论文
| 作者 | Chen, Bowen2,3; Liu, Chengyu4; Li, Qi2,3 ; Onyekwena, Chikezie Chimere1,2
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| 刊名 | TRANSPORTATION GEOTECHNICS
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 49页码:15 |
| 关键词 | Defective pipeline Ground settlement Theoretical model Soil arch Full pipe flow velocity |
| ISSN号 | 2214-3912 |
| DOI | 10.1016/j.trgeo.2024.101395 |
| 英文摘要 | Subsurface settlement is often triggered by soil erosion above underground defective pipelines. However, there is currently insufficient research on calculation methods for estimating ground settlement caused by defective pipeline. In this work, a series of laboratory experiments were conducted to investigate the impacts of the soil particle size, hydraulic gradient, thick-span ratio, and full pipe flow velocity on ground settlement around submerged defective pipelines. A sensitivity analysis was performed to further examine these factors. The experimental results revealed that there are three settlement modes, primarily determined by soil skeleton particle size and the thick-span ratio. . The full pipe flow velocity and hydraulic gradient significantly affected the settlement range, with the settlement range increasing as either the flow velocity or hydraulic gradient increased. Additionally, a new calculation model based on Manning's equation was developed to predict soil settlement. The error between the calculation and experiment results was less than 15%, demonstrating the accuracy and effectiveness of the proposed method. |
| 资助项目 | Major Project of Inner Mongolia Science and Technology[2021ZD0034] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001336191800001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42858]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Qi |
| 作者单位 | 1.Wuhan Inst Technol, Sch Civil Engn & Architecture, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Fuzhou Univ, Zijin Sch Geol & Min, Fuzhou 350108, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Bowen,Liu, Chengyu,Li, Qi,et al. Experimental and theoretical investigations of ground settlement around submerged defective pipelines[J]. TRANSPORTATION GEOTECHNICS,2024,49:15. |
| APA | Chen, Bowen,Liu, Chengyu,Li, Qi,&Onyekwena, Chikezie Chimere.(2024).Experimental and theoretical investigations of ground settlement around submerged defective pipelines.TRANSPORTATION GEOTECHNICS,49,15. |
| MLA | Chen, Bowen,et al."Experimental and theoretical investigations of ground settlement around submerged defective pipelines".TRANSPORTATION GEOTECHNICS 49(2024):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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