【摘要】 三峡工程导流明渠采用双戗立堵截流 ,上下游戗堤分别承担 2 /3和 1/3落差 ,采用水力学计算确定相应落差分担关系下的进占协调关系和上下戗堤的龙口水力学参数 ,并对实际截流施工时的水力条件进行了反演计算。更多还原

【Abstract】 The closure work of diversion channel of TGP is completed by means of end-dump advancing from both banks, it requires that the upstream closure dike should share two third of closure drop, and the downstream closure dike one third of closure drop. According to this distributive principle, the hydraulic parameters at final gaps of upstream dike and downstream dike and the coordinate advancing relationship between them are defined. Meanwhile, the hydraulic conditions in period of closure construction are calculated according to reverse order.更多还原