关于筑坝与泄洪问题,防洪和航道部门历来都持有不同的看法。本文以工程实例,模型试验成果和实测资料论述了筑坝与壅高水位、拦阻泥沙、减少过水断面及引起崩岸危及堤防安全等双方有争议的问题。通过理论和实际上的分析论证提出了见解。这对解除防洪部门的疑虑及促进航道整治工程的开展将是有益的。 Regarding damming and flood discharge, the flood control and waterway departments have always held different views. This paper discusses the controversial issues concerning the high water level of dams and slugs, the sediment blocking, the reduction of cross-section and the danger of bank collapse and dike safety based on the engineering examples, model test results and measured data. Through theoretical and practical analysis of arguments put forward opinions. This will be helpful to relieve the doubts of flood control departments and to promote the construction of waterway regulation works.