Behaviour of slate following freeze-thaw and dry-wet weathering processes

doi:10.1144/qjegh2016-093

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Behaviour of slate following freeze-thaw and dry-wet weathering processes
	Cui, Kai 1,2,3,4; Wu, Guopeng 1,2,3,4; Wang, Xiuli 2,3; Chen, Wenwu 1,4
刊名	QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY
	2017-05
卷号	50 期号:2 页码:117-125
关键词	Compressive strength Disasters Freezing Lithology Slate Slope stability Stress-strain curves Thawing Debris flows Freeze-thaw Gansu province Physical and mechanical properties Physical weathering Regional climate Uniaxial compressive strength Weathering process
ISSN号	1470-9236
DOI	10.1144/qjegh2016-093
英文摘要	The regions of Zhouqu and Wudu in Gansu Province, China, experience some of the world's most severe debris-flow-related disasters, such as landslides and mudslides. The intensity of these events is attributed to the underlying Silurian slate lithology, which undergoes freeze-thaw and dry-wet weathering processes. In addition, the regional climate allows these processes to alternate, which intensifies the weathering of the slate. In this study, the physical weathering of slate was assessed using photographs and measurement of variations in characteristics such as quality, elastic velocity, stress-strain curves and uniaxial compressive strength. Varying numbers of cycles of either freeze-thaw or dry-wet weathering processes, or an alternating combination of the two cycles, were applied to samples. Rules defining the correlative index of slate weathering were established via correlation regression and fitting analyses. Variations in physical and mechanical properties in response to weathering were used to elucidate the weathering and behavioural mechanisms of the slate under the different weathering processes. The results also provided a reference for both evaluating slope stability and predicting the potential for debris-flow disasters within the study region.
资助项目	National Natural Science Foundation for Gansu Province[1104ZSB085]
WOS研究方向	Engineering ; Geology
语种	英语
出版者	GEOLOGICAL SOC PUBL HOUSE
WOS记录号	WOS:000404001100004
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33291]
专题	土木工程学院
通讯作者	Wu, Guopeng
作者单位	1.Lanzhou Univ, Dept Geol Engn, Tianshui Rd 222, Lanzhou 730000, Peoples R China 2.Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou 730050, Peoples R China 3.Lanzhou Univ Technol, Dept Geotech Engn, Langongping Rd 287, Lanzhou 730050, Peoples R China 4.Minist Educ, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Cui, Kai,Wu, Guopeng,Wang, Xiuli,et al. Behaviour of slate following freeze-thaw and dry-wet weathering processes[J]. QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY,2017,50(2):117-125.
APA	Cui, Kai,Wu, Guopeng,Wang, Xiuli,&Chen, Wenwu.(2017).Behaviour of slate following freeze-thaw and dry-wet weathering processes.QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY,50(2),117-125.
MLA	Cui, Kai,et al."Behaviour of slate following freeze-thaw and dry-wet weathering processes".QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY 50.2(2017):117-125.