断层对拱坝坝肩变形的影响  

Influence of fault on arch dam abutment deformation

作　　者：金辉[1] 夏辉[1] 刘力 杜文才[1] 

机构地区：[1]中水东北勘测设计研究有限责任公司,吉林长春130021 [2]丹东市水利勘测设计研究院,辽宁丹东118001

出　　处：《东北水利水电》2016年第2期1-1,4,共2页Water Resources & Hydropower of Northeast China

摘　　要：盖下坝水电站混凝土拱坝建于三叠系下统嘉陵江组灰岩之上,岩体坚硬、完整均一,变形模量较高。断层较少且规模不大,均为窄长形,内夹多为碎块石、岩屑。经平面有限元对断层压缩进行计算分析表明,由于拱端岩体变形模量高、断层规模小等因素,断层的压缩有限,其对拱端变形影响很小。Concrete arch dam of Gaixiaba hydropower station is built on limestone of the lower series of Triassic Jialingjiang formation. The limestone is hard, integrated and uniform, with the high deformation modulus. The fault number is less and scale of the fault is small, their shapes are all narrow and long and there are many fragment and debris in the faults. Through the calculation analysis of fault compression by using the plane finite element,the result shows that the compression of fault is limited and has little impact on arch dam abutment deformation due to the factors of high deformation modulus of arch dam abutment rock and small scale fault, and so on.

关 键 词：坝肩断层 压缩变形 椭圆双曲拱坝 盖下坝水电站 

分 类 号：TV223.32[水利工程—水工结构工程]