南京治江工程五十年回顾

通过南京治江工程的实践经验和科学研究 (包括模型试验 ) ,提出了根据不同汊道长度比确定最有效治理方法的论点。当两汊道长度相差不大时 ,稳定上游河势是最有效的 ;当两汊道长度相差较大时 ,稳定洲头是最有效的。最后提出采用参数Σ Q2 T(Q≥ 45 0 0 0 )作为判断江流冲刷强度的主要指标 ,可以对南京河段江岸冲刷和崩塌的可能性进行预测。

Retrospection of the Last Ten Years of Nanjing River Hardness Prject

Through the practical experience and science study(including model test)of Nanjing River Hardness Project the paper puts forward the argument of determining the most effective hardness method in accordance with the length ratio of different branches.When the length difference between two branches is not large,to steady the river momentum of the upper reaches is the most effective.When the length difference between two branches is larger,to steady the islet head is the most effective.Lastly,the paper puts forward to adopt the parameter ΣQ 2T(Q≥45000)as the main targets for judging the erosion strength of the river flow,so it can forecast the possibility of the erosion and collapse of the river banks in Nanjing river sector.