Climate Change Data Portal
| DOI | 10.1016/j.applthermaleng.2018.12.097 |
| Applicability evaluation of cast-in-place bored pile in permafrost regions based on a temperature-tracking concrete hydration model | |
| Gao Q.; Wen Z.; Ming F.; Liu J.; Zhang M.; Wei Y. | |
| 发表日期 | 2019 |
| ISSN | 13594311 |
| 卷号 | 149 |
| 英文摘要 | In recent years, cast-in-place bored piles have been widely used in engineering constructions. However, the applicability of bored pile was constricted by the loss of concrete strength in the cold curing environment of permafrost. A temperature-tracking concrete hydration model was developed to clarify the refreezing process of the bored pile. Based on an initial refreezing time (IRT) on the pile side of at least 30 days, the applicability of cast-in-place bored pile in permafrost regions was discussed. The results show that the IRT increases with the increasing of the mean annual ground temperature (MAGT), the ice content of frozen soil, the molding temperature of concrete, and the pile diameter. The applicability of the bored pile can be expanded by increasing the diameter of the bored pile as well as the molding temperature. Particularly, the influence of diameter is more obvious than that of the molding temperature. The simulations indicate that the bored pile is not recommended to be adopted in perennially cryotic ground where the MAGT is lower than −3.5 °C. The IRT should be adjusted to guarantee both pile quality and schedule. © 2018 |
| 英文关键词 | Applicability evaluation; Cast-in-place bored pile; Hydration model; Permafrost |
| URL | https://www2.scopus.com/inward/record.uri?eid=2-s2.0-85058475302&doi=10.1016%2fj.applthermaleng.2018.12.097&partnerID=40&md5=372e193446f51fe1f8d60902d537528c |
| 语种 | 英语 |
| scopus关键词 | Cast in place concrete; Curing; Hydration; Molding; Permafrost; Applicability evaluation; Cast-in-place bored pile; Concrete hydration; Curing environments; Engineering constructions; Hydration models; Molding temperature; Temperature tracking; Piles |
| 来源期刊 | Applied Thermal Engineering
 |
| 来源机构 | 中国科学院西北生态环境资源研究院 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/77249 |
| 推荐引用方式 GB/T 7714 | Gao Q.； Wen Z.； Ming F.； Liu J.； Zhang M.； Wei Y.. Applicability evaluation of cast-in-place bored pile in permafrost regions based on a temperature-tracking concrete hydration model[J]. 中国科学院西北生态环境资源研究院,2019,149. |
| APA | Gao Q.； Wen Z.； Ming F.； Liu J.； Zhang M.； Wei Y..(2019).Applicability evaluation of cast-in-place bored pile in permafrost regions based on a temperature-tracking concrete hydration model.Applied Thermal Engineering,149. |
| MLA | Gao Q.； Wen Z.； Ming F.； Liu J.； Zhang M.； Wei Y.."Applicability evaluation of cast-in-place bored pile in permafrost regions based on a temperature-tracking concrete hydration model".Applied Thermal Engineering 149(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
