Alteration of Mesoscopic Properties and Mechanical Behavior of Sandstone Due to Hydro-Physical and Hydro-Chemical Effects

doi:10.1007/s00603-016-1111-0

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

	Alteration of Mesoscopic Properties and Mechanical Behavior of Sandstone Due to Hydro-Physical and Hydro-Chemical Effects
	Huang, Anda 3; Qiao, Liping 1,2; Wang, Zhechao 1,3
刊名	ROCK MECHANICS AND ROCK ENGINEERING
	2017
卷号	50 期号:2 页码:255-267
关键词	Sandstone Mesoscopic property Mechanical property Secondary porosity Hydro-physical effect Hydro-chemical effect
ISSN号	0723-2632
DOI	10.1007/s00603-016-1111-0
英文摘要	The hydro-physical and hydro-chemical interactions between groundwater and a rock mass can lead to changes in the mineral composition and structure of the rock (e.g., generation of voids and dissolution pores and an increase in the porosity), thereby altering the macroscopic mechanical characteristics of the rock mass. Sandstone specimens were saturated with distilled water and five aqueous solutions characterized by various ion concentrations and pH values for several months, and their porosity was measured in real time. Simultaneously, the concentration and pH of each aqueous solution were monitored every 30 days. The results indicate that after immersion in the aqueous solutions for 180 days, the porosity of the sandstone specimens and the ion concentrations and pH of the aqueous solutions tended to stabilize. Then, the immersed sandstone specimens were analyzed in thin section and subjected to computerized tomography scanning. It turns out that the mineral composition and structure of the specimens had all changed to various degrees. Finally, the uniaxial compression tests were conducted on the sandstone specimens to analyze the effects of the hydro-physical and hydro-chemical alteration on the macroscopic mechanical characteristics of the rock (e.g., the stress-strain relationship, elastic modulus, and peak strength). The results of this study can serve as a reference for investigations into theories and applications of water-rock interactions and for research in related fields.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000394172600001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4011]
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.Northeastern Univ, Sch Resources & Civil Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 3.Shandong Univ, Sch Civil Engn
推荐引用方式 GB/T 7714	Huang, Anda,Qiao, Liping,Wang, Zhechao. Alteration of Mesoscopic Properties and Mechanical Behavior of Sandstone Due to Hydro-Physical and Hydro-Chemical Effects[J]. ROCK MECHANICS AND ROCK ENGINEERING,2017,50(2):255-267.
APA	Huang, Anda,Qiao, Liping,&Wang, Zhechao.(2017).Alteration of Mesoscopic Properties and Mechanical Behavior of Sandstone Due to Hydro-Physical and Hydro-Chemical Effects.ROCK MECHANICS AND ROCK ENGINEERING,50(2),255-267.
MLA	Huang, Anda,et al."Alteration of Mesoscopic Properties and Mechanical Behavior of Sandstone Due to Hydro-Physical and Hydro-Chemical Effects".ROCK MECHANICS AND ROCK ENGINEERING 50.2(2017):255-267.