Borehole Cross-Sectional Shape Analysis under in Situ Stress

doi:10.1061/(ASCE)GM.1943-5622.0001687

	Borehole Cross-Sectional Shape Analysis under in Situ Stress
	Han, Zengqiang 2; Wang, Chuanying 2; Wang, Yiteng 2; Wang, Chao 1
刊名	INTERNATIONAL JOURNAL OF GEOMECHANICS
	2020-06-01
卷号	20 期号:6 页码:6
关键词	Borehole geometrical shape Stress relief method In situ stress Ellipse shape parameters
ISSN号	1532-3641
DOI	10.1061/(ASCE)GM.1943-5622.0001687
英文摘要	The stress relief method is currently one of the most commonly used in situ stress measurement methods, and its basic measurement principle is the relationship between borehole deformation and in situ stress. The research object of this paper is a circular hole in an infinite elastic plate under plane stress conditions. Based on the elasticity theory, the shape of a circular hole in an infinite elastic plate under plane stress conditions is an ellipse. The formula to convert the ellipse shape parameters to stress is given. A new method for calculating the ellipse shape parameters is proposed, in which any three points on the original circular hole are used to describe the ellipse shape and the corresponding formulas are derived. The feasibility of the method and the formulas are verified by analyzing a specific example. By developing the relationship between borehole geometry and stress, a stress calculation method based on a borehole cross-sectional shape is constructed, which is significant for guiding in situ stress measurements.
资助项目	National Natural Science Foundation of China[41731284] ; National Natural Science Foundation of China[41402278] ; Strategic Research Program of the Chinese Academy of Sciences[XDB10030200]
WOS研究方向	Engineering
语种	英语
出版者	ASCE-AMER SOC CIVIL ENGINEERS
WOS记录号	WOS:000529974500009
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/24076]
专题	中科院武汉岩土力学所
通讯作者	Han, Zengqiang
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Univ Chinese Acad Sci, Wuhan 430071, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
推荐引用方式 GB/T 7714	Han, Zengqiang,Wang, Chuanying,Wang, Yiteng,et al. Borehole Cross-Sectional Shape Analysis under in Situ Stress[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2020,20(6):6.
APA	Han, Zengqiang,Wang, Chuanying,Wang, Yiteng,&Wang, Chao.(2020).Borehole Cross-Sectional Shape Analysis under in Situ Stress.INTERNATIONAL JOURNAL OF GEOMECHANICS,20(6),6.
MLA	Han, Zengqiang,et al."Borehole Cross-Sectional Shape Analysis under in Situ Stress".INTERNATIONAL JOURNAL OF GEOMECHANICS 20.6(2020):6.