A chemo-mechanical coupling model for concrete lining subjected to external sulfate attack

doi:10.1080/19648189.2019.1647462

	A chemo-mechanical coupling model for concrete lining subjected to external sulfate attack
	Hou, Huiming 2; Hu, Dawei 2; Zhou, Hui 2; Lu, Jingjing 2; Zhang, Fan 1
刊名	EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
	2021-12-06
卷号	25 期号:14 页码:2674-2691
关键词	Chemo-mechanical coupling external sulfate attack mechanical damage concrete lining
ISSN号	1964-8189
DOI	10.1080/19648189.2019.1647462
英文摘要	Concrete is widely used for lining structure in underground facility and unfortunately it is often attacked by coupling effects of external sulfate and triaxial compressive stress transferred from surrounding soil or rock formations. In this text, a model is developed to depict the coupling effects of mechanical loading and external sulfate attack on concrete lining. The total strain is composed of elastic strain and plastic strain characterised by modified Drucker-Prager criterion, and the deterioration of mechanical properties is related to both mechanical damage and chemical damage. The former considers microcracks generation through micromechanical operations, and the latter is defined by the molar concentration of total sulfates in concrete. A simple diffusion equation is deduced from the sulfate ions diffusion-reaction process to depict the distribution of the total sulfates in both solution and solid phase. A relationship between chemical damage and sulfates concentration is established based on experimental results. The proposed model is then implemented into COMSOL multiphysics to analyse the long-term stability of concrete lining subjected to external sulfate attack in a tunnel. The numerical results show that the simulation results match the experimental data.
WOS研究方向	Engineering
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000722427100009
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/28300]
专题	中科院武汉岩土力学所
通讯作者	Hu, Dawei
作者单位	1.Hubei Univ Technol, Sch Civil Engn Architecture & Environm, Wuhan, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Hou, Huiming,Hu, Dawei,Zhou, Hui,et al. A chemo-mechanical coupling model for concrete lining subjected to external sulfate attack[J]. EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,2021,25(14):2674-2691.
APA	Hou, Huiming,Hu, Dawei,Zhou, Hui,Lu, Jingjing,&Zhang, Fan.(2021).A chemo-mechanical coupling model for concrete lining subjected to external sulfate attack.EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,25(14),2674-2691.
MLA	Hou, Huiming,et al."A chemo-mechanical coupling model for concrete lining subjected to external sulfate attack".EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING 25.14(2021):2674-2691.