长江科学院院报2011，Vol.28Issue(9)：40-43,67,5.
丹江口大坝水泥灌浆帷幕耐久性研究
Durability of Cement Grouting Curtain at Danjiangkou Dam
摘要
Abstract
To study the durability of impermeable curtain and to propose suggestions for the strengthening grouting of the curtain in the later stage, physical-chemical analysis and permeability test are performed on the cement stone of the impermeable curtain which is constructed at the riverbed section of Danjiangkou dam in the early stage. The structures of hydration products of cement stone from core samples in most investigated holes are manifested to be compact with no abnormal mineral or chemical compositions. These core samples with compact structure exhibit good impermeability with little CaO corroded by percolating water. The corrosion speed of CaO reduced with the permeation time extended. The effective age of the curtains with dense cement stones is estimated to exceed 100 years, which indicates that the grouted cement curtain has good durability and corrosion resistance. Strengthening grouting is required at dam sections where CaO is visibly corroded.关键词
丹江口大坝/水泥灌浆帷幕/耐久性Key words
Danjiangkou Dam/ grouted cement curtain/ durability分类
建筑与水利引用本文复制引用
李晓鄂,李珍..丹江口大坝水泥灌浆帷幕耐久性研究[J].长江科学院院报,2011,28(9):40-43,67,5.基金项目
“十一五”国家科技支撑计划课题(2006BAB04A01) （2006BAB04A01）
