【摘要】 针对高坝建设和运行中普遍存在的裂缝问题,将高坝混凝土裂缝问题分为4个部分,包括裂缝成因和机理、裂缝扩展稳定性、裂缝探查方法以及裂缝防治和处理措施,然后对每一部分中关键问题如裂缝成因、扩展稳定性研究方法、裂缝无损探查方法以及裂缝灌浆措施的研究现状分别进行阐述,指出优缺点及值得关注的发展方向,最后给出自己的一些建议,以期对高坝裂缝问题研究有所帮助。更多还原

【Abstract】 Cracking is the common problem during the construction and operation phases in the concrete dams.This paper illustrates the four aspects of the cracking problems in the high concrete dams,which include the causes and mechanisms of cracks,the stability of the expanding crack,the methods to examine cracks,and the prevention and treatment measures.Specific details are demonstrated for each of the four aspects,such as the causes of cracks,the methods of stability analysis,the non-destructive probing methods,and the grouting techniques.This paper summarizes the advantages and disadvantages for each method,and also points out that some methods merit attention.Furthermore,this paper proposes some advices for the future research of the cracking in the high concrete dams.更多还原