globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:6291385
论文题名:
寒区桩基热稳定性研究进展
其他题名: Research progress of piles' thermostability in cold regions
作者: 陈辉1; 张泽2; 冯文杰2; 史向阳2; 明姣2; 杜玉霞2
刊名: 冰川冻土
ISSN: 1000-0240
出版年: 2018
卷: 40, 期:2, 页码:5023-5030
语种: 中文
中文关键词: 桩基热稳定性 ; 土体回冻过程 ; 气候变化 ; 保护措施 ; 多年冻土
英文关键词: piles' ; thermostability ; soil refreezing procedure ; climate change ; protection measures ; permafrost
WOS学科分类: TRANSPORTATION
WOS研究方向: Transportation
中文摘要: 桩基础锚固长度大、埋置深,对地温场的扰动小、回冻快,在青藏高原多年冻土区被广泛使用.寒区桩基热稳定性研究是一个交叉面广、综合性较强的问题,它涉及到传热学、冻土学、桩基础的设计、桩-土相互作用等多方面的内容.在大量文献基础上,从现场试验、模型试验、理论计算等角度,对寒区桩基热稳定研究现状进行了总结和分析,文献研究表明:土体回冻过程受众多因素影响,而影响程度最大的是混凝土浇筑时的水化热释放;在全球变暖的情形下,未来50年青藏高原冻土退化严重,对桩基热稳定性构成威胁,需要采取相应的保护措施.
英文摘要: Due to a plenty of advantages,such as long anchorage length,deep burial,insensitivity to the changeable geothermal field and fast-refreezing,piles have been widely used in permafrost regions on the Tibetan Plateau. The study of piles' thermostability is always a comprehensive problem and it refers to many aspects,for instance,heat transfer theory,geocryology,design of piles,pile-soil interaction and so on. Based on lots of academic papers,the research progress of piles' thermostability by field and model tests and theorical calculation are summarized and analyzed in this paper. The following conclusions can be drawn: the soil refreezing procedure is affected by a lot of aspects,among which concrete hydration heat is the most significant; with the global warming, permafrost degradation will aggravate apparently on the Tibetan Plateau in the next 50 years,which threatens the piles' thermostability and corresponding protection measures need to be taken.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/153730
Appears in Collections:气候变化事实与影响

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作者单位: 1.兰州大学土木工程与力学学院
2.中国科学院西北生态环境资源研究院,
3.冻土工程国家重点实验室, 兰州
4.兰州, 甘肃
5.甘肃 730000
6.730000, 中国
7.中国科学院西北生态环境资源研究院, 冻土工程国家重点实验室, 兰州, 甘肃 730000, 中国

Recommended Citation:
陈辉,张泽,冯文杰,等. 寒区桩基热稳定性研究进展[J]. 冰川冻土,2018-01-01,40(2):5023-5030
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