上游河道整治时 ,其治理宽度常涉及到沿岸土地取得的问题 ,使治理工作有时变得困难 ,最后只好依现况宽度或将宽度窄缩 ,以迁就现实。惟因溪流治理宽度直接影响溪流本身的排洪、导流及输砂等多项功能 ,如不能依照必要的溪流宽度及其相关配套措施予以整治时 ,对国土资源及人民生命财产或有不利之影响 ,故有必要加以探讨。据此 ,本文针对床砂粒径组成及来水来砂量等条件为已知的上游河道 ,在各种可能的治理宽度下 ,通过一定的理论推导及渠槽试验方式 ,建立溪流宽度及其相应的水深、溪床坡度及流速等水力要素间之河相关系式 ,并提出溪流治理宽度、护岸高度及基础深度等工程措施之设计模式 ,提供现场工程设计之参考。 When dealing with the upper reaches of the river, the width of its management often involves the problems of land acquisition along the coasts, making it sometimes difficult for the government to work on it. In the end, it has to narrow the width of the status quo or the width to accommodate the reality. However, due to the width of stream control directly affects the drainage itself, such as flood diversion, diversion and sand transport and other functions, such as can not be in accordance with the necessary stream width and related measures to be remediation, land and resources and people’s lives and property or adverse Therefore, it is necessary to explore. Therefore, this paper aims at the composition of bed sand size and the amount of water coming from the sand is known as the upper reaches of the river, in a variety of possible control width, through some theoretical derivation and trench test methods to establish the width of the stream and its Corresponding water depth, river bed slope and flow rate, and other hydraulic factors are also discussed. The design patterns of engineering measures such as river control width, revetment height and basic depth are also proposed, which provide reference for on-site engineering design.