DOI: 10.5194/tc-8-1651-2014
Scopus记录号: 2-s2.0-84907046508
论文题名: Healing of snow surface-to-surface contacts by isothermal sintering
作者: Podolskiy E ; A ; , Barbero M ; , Barpi F ; , Chambon G ; , Borri-Brunetto M ; , Pallara O ; , Frigo B ; , Chiaia B ; , Naaim M
刊名: Cryosphere
ISSN: 19940416
出版年: 2014
卷: 8, 期: 5 起始页码: 1651
结束页码: 1659
语种: 英语
英文关键词: data interpretation
; interface
; power law
; pressure
; sinter
; slope stability
; snow
; strength
; time dependent behavior
英文摘要: Natural sintering in ice is a fundamental process determining mechanical properties of various ice forms. According to the literature, limited data are available about the complex subjects of snow sintering and bond formation. Here, through cold laboratory mechanical tests with a new shear apparatus we demonstrate time-dependent effects of isothermal sintering on interface strengthening at various normal pressures. Measurements showed that interfacial strength evolved rapidly, conforming to a power law (mean exponent ≈ 0.21); higher pressure corresponded to higher initial strength and sintering rates. Our findings are consistent with observations on homogeneous snow, provide unique records essential for slope stability models and indicate the significant importance of normal load on data interpretation. © Author(s) 2014. CC Attribution 3.0 License. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/74794
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: IRSTEA (UR ETGR), Centre de Grenoble, 2 rue de la Papeterie, St.-Martin-d'Hères-Cedex, France; Department of Structural, Building and Geotechnical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, Turin, Italy
Recommended Citation:
Podolskiy E,A,, Barbero M,et al. Healing of snow surface-to-surface contacts by isothermal sintering[J]. Cryosphere,2014-01-01,8(5)