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一、引言土坝裂缝在国内外都是普遍存征的问题,它往往威胁工程及下游安全、降低水库效益、直接影响国民经济,因而土坝裂缝问题迫切需要研究解决。土坝裂缝的原因很多、很复杂。裂缝类型不一,其中,以横向裂缝最受重视。本义只涉及沉降引起的横向拉裂问题。这个问题,有些人虽已提出一些研究成果,但仍未被土坝设计者采用。因为他们提出的分析方法,只作过事后验算,尚未预见过坝的裂
I. Introduction Cracks in earth dams are common extinction issues both at home and abroad. They often threaten the safety of projects and the lower reaches, reduce the benefits of reservoirs and directly affect the national economy. Therefore, the problems of earth dam cracks are urgently needed to be studied and solved. Earth dam cracks for many reasons, is very complicated. Different types of cracks, of which the most attention to the horizontal cracks. The original meaning only relates to the problem of transverse cracking caused by settlement. Some people have made some research on this issue but have not yet adopted it by dam designers. Because of their analytical methods, only made a posteriori check, not yet predicted the dam crack