Modification of poroelastic properties in granite by heating-cooling treatment

doi:10.1007/s11440-021-01163-3

	Modification of poroelastic properties in granite by heating-cooling treatment
	Zhang, Fan 2; Zhang, Yuhao 2,3; Hu, Dawei 1; Shao, Jianfu 3
刊名	ACTA GEOTECHNICA
	2021-02-24
页码	9
关键词	Biot’ s coefficient Granite Heating– cooling treatment Micro-cracking Poroelasticity
ISSN号	1861-1125
DOI	10.1007/s11440-021-01163-3
英文摘要	Poroelastic properties play an essential role in interaction between deformation and fluid pressure change in porous rocks. These properties can be affected by microstructural evolution such as porosity change and micro-cracks growth. In this study, the modification of poroelastic properties of a hard rock (granite) is investigated in terms of thermally induced micro-cracks. Granite samples are first subjected to a heating-cooling treatment with different values of temperature. The variations of bulk modulus, stiffness of solid grains and Biot's coefficient of thermally treated samples are determined and analyzed. It is found that both connected and occluded micro-cracks are generated in granite samples. The bulk modulus of porous material is affected by the connected micro-cracks, while the stiffness of solid grains is influenced by the occluded micro-cracks. The Biot's coefficient is affected by the connectivity of micro-cracks. All poroelastic properties evolve with effective mean stress and a non-linear poroelastic law should be defined.
资助项目	Natural Science Foundation of China[51979100] ; Natural Science Foundation of China[51779252] ; Natural Science Foundation of China[51579093] ; National Key Research and Development Program of China[2018YFC0809601]
WOS研究方向	Engineering
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000621303400003
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/25839]
专题	中科院武汉岩土力学所
通讯作者	Shao, Jianfu
作者单位	1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan, Peoples R China 2.Hubei Univ Technol, Sch Civil Engn Architecture & Environm, Wuhan, Peoples R China 3.Univ Lille, Lab Multiscale Multiphys Mech, LaMcube, UMR9013,EC Lille,CNRS, F-59000 Lille, France
推荐引用方式 GB/T 7714	Zhang, Fan,Zhang, Yuhao,Hu, Dawei,et al. Modification of poroelastic properties in granite by heating-cooling treatment[J]. ACTA GEOTECHNICA,2021:9.
APA	Zhang, Fan,Zhang, Yuhao,Hu, Dawei,&Shao, Jianfu.(2021).Modification of poroelastic properties in granite by heating-cooling treatment.ACTA GEOTECHNICA,9.
MLA	Zhang, Fan,et al."Modification of poroelastic properties in granite by heating-cooling treatment".ACTA GEOTECHNICA (2021):9.