黑龙江省尚志市河流较多,水资源丰沛。多年来该市为发展水田,在众多河流上共修建２００余座拦河坝,但由于种种原因,砂拦河坝已遭水毁。为此,笔者调查了３４处拦河坝,对较有代表性的２０处拦河坝进行了综合分析,总结出有坝引水渠首水毁的原因,主要有如下六条:一、设计标准低、工程不配套,行洪断面不够。该市大多数拦河坝的设计标准低或者没按设计标准施工,因而 Shangzhi City, Heilongjiang Province, more rivers, abundant water resources. Over the years the city for the development of paddy fields, a total of more than 200 river dam built in many rivers, but due to various reasons, sand barrage has been destroyed. For this reason, the author investigated 34 barrages and conducted a comprehensive analysis of the more representative 20 barrages, and summarized the reasons for the dammed diversion canal. The main reasons are as follows: First, the design standards are low and the projects are not complete , Hong Hong section is not enough. Most of the city’s dam design standards are low or not designed according to the standard construction, and therefore