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A statistical damage constitutive model under freeze-thaw and loading for rock and its engineering application
Huang, Shibing1,2,3; Liu, Quansheng3; Cheng, Aiping1,2; Liu, Yanzhang1,2
2018
Source PublicationCOLD REGIONS SCIENCE AND TECHNOLOGY
ISSN0165-232X
Volume145Issue:-Pages:142-150
Abstract

The freeze-thaw damage of rock is a critical problem to study rock engineering in cold regions. When water is frozen in pores, 9% volume expansion will induce damage in rock for a huge ice pressure. Thus, rock will be deteriorated and softened after freeze-thaw. Besides, loading damage produces when the inner stress exceeds the bearing capacity of rock. So it's crucial to establish a damage constitutive model under freeze-thaw and loading in order to evaluate the stability of rock engineering in cold regions. The freeze-thaw damage of rock is expressed by static elastic modulus in this paper, which can be accurately and simply predicted by damage evolution equation using P-wave velocity or compression strength proposed by Liu et al., 2015. Loading damage can be obtained by statistical theory assuming that micro-unit strength satisfies the Weibull distribution and the maximum-tensile-strain yield criterion. Then the final statistical damage constitutive equation under freeze-thaw and loading is derived, in which unknown parameters can be determined through carrying out compression experiment on rock after different freeze-thaw cycles. This developed model is validated by a previous experiment and applied to analyze the stability of a tunnel under coupled thermo-hydro-mechanical condition in cold regions. The results show that the proposed constitutive model is very suitable for rock suffering freeze-thaw cycles and it is of high accuracy and good practicality.

KeywordFreeze-thaw Damage Loading Damage Statistical Damage Constitutive Model Cold Region Tunnel
DOI10.1016/j.coldregions.2017.10.015
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Geosciences, Multidisciplinary
WOS IDWOS:000415834800015
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:52[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://119.78.100.198/handle/2S6PX9GI/4179
Collection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
Affiliation1.Wuhan Univ Sci & Technol, Sch Resources & Environm Engn ;
2.Hubei Key Lab Efficient Utilizat & Agglomerat Met ;
3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
Recommended Citation
GB/T 7714
Huang, Shibing,Liu, Quansheng,Cheng, Aiping,et al. A statistical damage constitutive model under freeze-thaw and loading for rock and its engineering application[J]. COLD REGIONS SCIENCE AND TECHNOLOGY,2018,145(-):142-150.
APA Huang, Shibing,Liu, Quansheng,Cheng, Aiping,&Liu, Yanzhang.(2018).A statistical damage constitutive model under freeze-thaw and loading for rock and its engineering application.COLD REGIONS SCIENCE AND TECHNOLOGY,145(-),142-150.
MLA Huang, Shibing,et al."A statistical damage constitutive model under freeze-thaw and loading for rock and its engineering application".COLD REGIONS SCIENCE AND TECHNOLOGY 145.-(2018):142-150.
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