用超饱和输沙法计算沉沙池泥沙沉降率的验证及实际应用  

Certification and Actual Application of the Calculation of the Sedimentation Rate of the Settling Basin by Using the Supersaturated Sediment Discharge

作　　者：王仁龙[1] 

机构地区：[1]水利部山西水利水电勘测设计研究院

出　　处：《科技情报开发与经济》2005年第4期185-187,共3页Sci-Tech Information Development & Economy

摘　　要：泥沙沉降计算直接影响着沉沙池的设计,欲使设计成果与实际运行结果相符,重要的是选择沉沙池泥沙沉降计算方法,一度流超饱和输沙法是沉沙池设计中较常用的一种计算方法,用打渔张第五条渠,大禹渡平流型定期冲洗式沉沙地实测资料,对一度流超饱和输沙法进行验证,验证结果证明,一度流超饱和输沙法计算公式结构基本正确。只要α值选择合理,定能计算出比较符合实际的结果。用实测资料进行α值的回归分析得到α值的经验公式,经验证计算,证明α的经验公式是比较正确的,α值进一步演变,在《水利水电工程沉沙池设计规范》中得到了有效的应用。The calculation of the sedimentatio n has direct influence on the design o f the settling basin,in order to make the design results conform to th e actual operation results,the important thing is to select the calculating method for settling basin' s sedimentation,and the supersatur ated sediment discharge is a common c alculating method in the design of the settling basin.And the supersaturated sediment discharge is verified with some measured data,the resul ts of which certify that the structure of its calculation formulas is basically righ t.So long as the value ofαis selected properly,the calculation results will certainly accord with the reality.The empiric al formula obtained form the regress ion analysis of the value ofαthat is made by using the measured data certificates that the empirical fo rmulas ofαare more right,and the further variation of the value ofαgets its effective application in <t he Norm of the Design of the Settling B asin of the Hydraulic and Hydroelectric Engineering>.

关 键 词：沉沙池 沉降率 观测资料 计算方法 超饱和输沙法 

分 类 号：TV673[水利工程—水利水电工程]