Set-up effect of large-diameter open-ended thin-walled pipe piles driven in clay
文献类型：期刊论文
| 作者 | Qin, Wei; Gao, Jiayu; Chang, Kuntan; Dai, Guoliang; Wei, Houzhen |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 159 |
| 关键词 | Large -diameter open-ended thin -wall steel pipe piles Pore water pressure distribution Excess pore water pressure dissipation Bearing capacity Set-up effect |
| ISSN号 | 0266-352X |
| 英文摘要 | A finite element method (FEM) model was developed to investigate the distribution and dissipation of the soil excess pore water pressure (EPWP) around large-diameter open-ended thin-wall steel pipe piles (LOTPs) driven by impact loads into saturated clay, in addition to the set-up effect of LOTPs. The initial pore water pressure (PWP) distribution and vertical bearing capacity of LOTPs after EPWP dissipation were analyzed through this numerical model. The EPWP mapped onto the FEM model was compared with previously reported distribution curves, revealing that the numerical results were generally similar to those of previous theoretical models. Following dissipation for 28 days, the load-settlement curves of LOTPs were compared with the results of several specifications; this indicated that the larger the LOTP diameter, the greater the similarity between axial bearing capacities calculated via the FEM model and the specifications. This FEM model could generally satisfy the re-quirements for analyzing the set-up effect of LOTPs. It was also found that the LOTP capacities were over-estimated when the EPWP was neglected. Beyond 28 days, the pile bearing capacity did not increase because the dissipation of the EPWP was almost fully developed. An equation for predicting the set-up effect of LOTPs installed using impact hammers is also presented. |
| 学科主题 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000989013500001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35535]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Southeast University - China; 2.Wenzhou University; 3.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 4.Wenzhou University |
| 推荐引用方式 GB/T 7714 | Qin, Wei,Gao, Jiayu,Chang, Kuntan,et al. Set-up effect of large-diameter open-ended thin-walled pipe piles driven in clay[J]. COMPUTERS AND GEOTECHNICS,2023,159. |
| APA | Qin, Wei,Gao, Jiayu,Chang, Kuntan,Dai, Guoliang,&Wei, Houzhen.(2023).Set-up effect of large-diameter open-ended thin-walled pipe piles driven in clay.COMPUTERS AND GEOTECHNICS,159. |
| MLA | Qin, Wei,et al."Set-up effect of large-diameter open-ended thin-walled pipe piles driven in clay".COMPUTERS AND GEOTECHNICS 159(2023). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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