气候变化领域集成服务门户(CCPortal): An experimental study of the relationship between the matric potential, unfrozen water, and segregated ice of saturated freezing soil

CCPortal

DOI	10.1007/s10064-020-02052-x
	An experimental study of the relationship between the matric potential, unfrozen water, and segregated ice of saturated freezing soil
	Xue, Ke; Wen, Zhi; Zhu, Zhanyuan; Wang, Dayan; Luo, Fei; Zhang, Mingli
通讯作者	Xue, K (通讯作者)，Sichuan Agr Univ, Coll Water Conservancy & Hydropower Engn, Yaan 635000, Peoples R China. ; Xue, K (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1435-9529
EISSN	1435-9537
起始页码	2535
结束页码	2544
卷号	80 期号:3
英文摘要	Frost heave damage is caused by the in situ freezing of pore water and segregated ice due to moisture migration. Previous studies have shown that in freezing soil, moisture migration is related to the pore water pressure gradient, and moisture migration is the dominant reason for the formation of an ice lens. However, the essential relationship between ice segregation and the matric potential is still controversial. Using a pF meter sensor, a 5TM volume water content sensor, and a digital image capture system, the relationship between the matric potential and the unfrozen water in saturated freezing soil was monitored in real time, and digital images of the formation of segregated ice were collected. Furthermore, the time space coupling relationships between the unfrozen water, the matric potential, the frost-heaving amount, the moisture migration, and the formation of an ice lens were systematically analyzed during soil freezing. The results demonstrate that there is an internal relationship between the moisture migration driven by the matric potential (from the micro-perspective) and the segregated ice layer effect (from the macroscopic perspective). In addition, the unfrozen water and the matric potential in the frozen area have a significant impact on the distribution of the segregated ice lenses.
关键词	FROST HEAVE FROZEN TRANSPORT LENSES
英文关键词	Freezing soil; Matric potential; Segregated ice; Unfrozen water; pF meter
语种	英语
WOS研究方向	Engineering ; Geology
WOS类目	Engineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS记录号	WOS:000605098500003
来源期刊	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
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/254245
作者单位	[Xue, Ke; Zhu, Zhanyuan; Luo, Fei] Sichuan Agr Univ, Coll Water Conservancy & Hydropower Engn, Yaan 635000, Peoples R China; [Xue, Ke; Wen, Zhi; Wang, Dayan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China; [Wen, Zhi] Lanzhou Jiao Tong Univ, Sch Civil Engn, Lanzhou 730100, Peoples R China; [Zhang, Mingli] Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Xue, Ke,Wen, Zhi,Zhu, Zhanyuan,et al. An experimental study of the relationship between the matric potential, unfrozen water, and segregated ice of saturated freezing soil[J]. 中国科学院西北生态环境资源研究院,2021,80(3).
APA	Xue, Ke,Wen, Zhi,Zhu, Zhanyuan,Wang, Dayan,Luo, Fei,&Zhang, Mingli.(2021).An experimental study of the relationship between the matric potential, unfrozen water, and segregated ice of saturated freezing soil.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,80(3).
MLA	Xue, Ke,et al."An experimental study of the relationship between the matric potential, unfrozen water, and segregated ice of saturated freezing soil".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 80.3(2021).