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Engineering geology research on the characteristics of concentrated unloading zone of a typical bank slope

REN Guang-ming1,XIA Min1,XIONG Jing-hui1,LIU Chang2, ZHANG Fu-rong2,Lü Yao-cheng2,XU Shu-feng2 1.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China; 2.Northwest Investigation & Design Research Academy,State Power Corporation,Xi'an 710065,China  
Based on the study of field background,structural evolutional characteristics and development history of Yellow River,this paper studies the distribution feature and mechanism of the deep cracks.The result shows that these cracks dip toward to a river or the reverse direction with high angle,belonging to the category of unloading,and are the products of the epigenetic reformation controlled by the early tectonic structural plane and induced by the release of horizontal stress in course of forming bank slopes.
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