水科学进展2011，Vol.22Issue(6)：839-843,5.DOI:32.1309.P.20111125.1636.011
高坝工程总溶解气体过饱和与水体含沙量关系
Relation of total dissolved gas supersaturation and suspended sediment concentration of high-dams
摘要
Abstract
In order to resolve the issue concerning the relation of total dissolved gas ( TDG) supersaturation and suspended sediment concentration of high-dams, a practical abatement measure for TDC supersaturation is put forward in this study. Based on a series of experiments, the production and release of TDG supersaturation in sediment laden flow are studied. The result shows that the production of TDG supersaturation remains almost the same level in either sediment laden flow or clear water for the same initial conditions. The rate of release of TDG supersaturation in sediment laden flow is significantly faster than that in clear water. The suspended sediment concentration can be increased through the use of bottom intakes, speeding up the release of TDG supersaturation. Such a measure can minimize the effect of TDG supersaturation on fish species in the downstream region of high-dams.关键词
大坝/总溶解气体/饱和/悬沙Key words
dams/ total dissolved gas/ saturation/ suspended sediment分类
建筑与水利引用本文复制引用
曲璐..高坝工程总溶解气体过饱和与水体含沙量关系[J].水科学进展,2011,22(6):839-843,5.基金项目
国家自然科学基金资助项目(50979063) （50979063）
