A prediction model for uniaxial compressive strength of deteriorated rocks due to freeze-thaw

doi:10.1016/j.coldregions.2015.09.013

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	A prediction model for uniaxial compressive strength of deteriorated rocks due to freeze-thaw
	Liu, Quansheng 1,2; Huang, Shibing 1; Kang, Yongshui 1; Liu, Xuewei 1
刊名	COLD REGIONS SCIENCE AND TECHNOLOGY
	2015
卷号	120 页码:96-107
关键词	Uniaxial compressive strength Freeze-thaw Prediction model Fatigue damage mechanics
ISSN号	0165-232X
DOI	10.1016/j.coldregions.2015.09.013
英文摘要	The structure deterioration of rock under freeze-thaw is an important research subject for natural building niaterials and engineering construction in cold regions exposed to severe climatic conditions. The loss of long-term uniaxial compressive strength after freeze-thaw is a crucial index for frost resistance which needs to be estimated by damage model. In the previous studies, some prediction models were proposed with regression analysis of laboratory data from massive rock samples while the mechanism of freezing-thawing damage was ignored. In order to derive much more accurate and economic results, in this study, a new prediction model of uniaxial compressive strength against freeze-thaw action was proposed based on elastic-plastic theory and fatigue damage mechanics considering the actual state of stress distributing in rock under freeze-thaw. The unknown material parameters in the present model could be determined by testing P-wave velocity instead of testing uniaxial compressive strength. This model was validated by three previous experiments including freeze-thaw test of low porosity saturated sandstones, high porosity saturated ignimbrites and unsaturated welded tuffs. The results indicate that these model equations are more reliable for all the chosen rocks with different porosity and water saturation compared with the decay function model proposed by Yavuz et al. (2006), besides it can be more convenient and useful to predetermine uniaxial compression strength of rock under any freeze-thaw cycle. (C) 2015 Elsevier B.V. All rights reserved.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000365055400010
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3784]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Wuhan Univ, Minist Educ, Key Lab Rock Mech Hydraul Struct Engn
推荐引用方式 GB/T 7714	Liu, Quansheng,Huang, Shibing,Kang, Yongshui,et al. A prediction model for uniaxial compressive strength of deteriorated rocks due to freeze-thaw[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2015,120:96-107.
APA	Liu, Quansheng,Huang, Shibing,Kang, Yongshui,&Liu, Xuewei.(2015).A prediction model for uniaxial compressive strength of deteriorated rocks due to freeze-thaw.COLD REGIONS SCIENCE AND TECHNOLOGY,120,96-107.
MLA	Liu, Quansheng,et al."A prediction model for uniaxial compressive strength of deteriorated rocks due to freeze-thaw".COLD REGIONS SCIENCE AND TECHNOLOGY 120(2015):96-107.