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Finite-element 3D modeling of stress patterns around a dipping fault
Lobatskaya, RM (Lobatskaya, R. M.)1; Strelchenko, IP (Strelchenko, I. P.)2; Dolgikh, ES (Dolgikh, E. S.)1
刊名GEOSCIENCE FRONTIERS
2018-09-01
卷号9期号:5 特刊:SI页码:1555-1563
关键词Internal Structure Fractal Analysis Field Observations Zones Seismicity Fractures Japan
ISSN号1674-9871
DOI10.1016/j.gsf.2017.09.010
英文摘要

Stresses in a block around a dipping fracture simulating a damage zone of a fault are reconstructed by finite-element modeling. A fracture corresponding to a fault of different lengths, with its plane dipping at different angles, is assumed to follow a lithological interface and to experience either compression or shear. The stress associated with the destruction shows an asymmetrical pattern with different distances from the highest stress sites to the fault plane in the hanging and foot walls. As the dip angle decreases, the high-stress zone becomes wider in the hanging wall but its width changes negligibly in the foot wall. The length of the simulated fault and the deformation type affect only the magnitude of maximum stress, which remains asymmetrical relative to the fault plane. The L-h/L-f ratio, where L-h and L-f are the widths of high-stress zones in the hanging and foot walls of the fault, respectively, is inversely proportional to the fault plane dip. The arithmetic mean of this ratio over different fault lengths in fractures subject to compression changes from 0.29 at a dip of 80 degrees to 1.67 at 30 degrees. In the case of shift displacement, ratios are increasing to 1.2 and 2.94, respectively. 

学科主题地质学
WOS研究方向Geology
语种英语
出版者CHINA UNIV GEOSCIENCES, BEIJING
WOS记录号WOS:000442691400020
内容类型期刊论文
源URL[http://ir.itpcas.ac.cn/handle/131C11/8556]  
专题青藏高原研究所_图书馆
通讯作者Lobatskaya, RM (Lobatskaya, R. M.)
作者单位1.Irkutsk Natl Res Tech Univ, 83 Lermontov Str, Irkutsk 664074, Russia;
2.Chinese Acad Sci, Inst Tibetan Plateau Res, 16 Lincui Rd, Beijing 100101, Peoples R China.
推荐引用方式
GB/T 7714
Lobatskaya, RM ,Strelchenko, IP ,Dolgikh, ES . Finite-element 3D modeling of stress patterns around a dipping fault[J]. GEOSCIENCE FRONTIERS,2018,9(5 特刊:SI):1555-1563.
APA Lobatskaya, RM ,Strelchenko, IP ,&Dolgikh, ES .(2018).Finite-element 3D modeling of stress patterns around a dipping fault.GEOSCIENCE FRONTIERS,9(5 特刊:SI),1555-1563.
MLA Lobatskaya, RM ,et al."Finite-element 3D modeling of stress patterns around a dipping fault".GEOSCIENCE FRONTIERS 9.5 特刊:SI(2018):1555-1563.
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