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- W2391475794 abstract "Initial earth stress in rock masses is the basic load of surrounding rock of large-scale underground openings of hydropower station,and it also is an important factor affecting the stability of the underground openings.Consequently,it is very vital for the openings layout and support structure design to rationally determine regional earth stress field of the openings surrounding region.This paper put forward the method about how to get regional earth stress field from only few earth stress data of measured points.This method introduced three hypotheses,namely,taking ancient landform as a planation surface,assuming ancient earth stress field to be caused by gravity and tectogenesis,and supposing existing earth stress field to be induced by denudation of ancient landform with ancient earth stress field.Therefore,by virtue of finite element method,the idea,which can take rock gravity,tectogenesis and landform denudation into account,to get initial earth stress field of rock mass was presented.At last,the regional earth stress field of a water power station's underground excavations was studied by back analysis using the above idea.The result shows that the method is feasible and practical." @default.
- W2391475794 created "2016-06-24" @default.
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- W2391475794 date "2007-01-01" @default.
- W2391475794 modified "2023-09-28" @default.
- W2391475794 title "Feedback analysis of initial earth stress field of rock masses in large-scale underground openings situated in valley zone" @default.
- W2391475794 hasPublicationYear "2007" @default.
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