作　　者： ; ; ;

机构地区： 武汉大学水利水电学院

出　　处： 《水利水电技术》 2011年第3期70-72,共3页

摘　　要： 紫檀冲大坝在劈裂灌浆时发生坝顶塌陷现象,经过分析排除了由于灌浆引起塌陷的原因。根据实地勘察和理论计算得出大坝塌陷的原因是由于大坝心墙内存在沿坝轴线方向的空洞。根据土拱效应理论分析了空洞出现的过程,并提出了解决方案。 On the crest of Zitanchong Dam, subsidence occurred during split-grouting, for which the causation of the subsidence resulted from the grouting is excluded through the analysis concerned. In accordance with the site investigation and the relevant theoretical calculation, the causation of the subsidence is obtained that a cavity along the axis of the dam is there inside of the core of the dam. Based on the theory of soil-arch effect, the formation process of the cavity is analyzed herein and then the solu- tion scheme is presented as well.

关 键 词： 紫檀冲大坝 窄粘土心墙坝 塌陷 劈裂灌浆 空洞 心墙沉降 土拱效应

领　　域： [水利工程]