丁坝错口距离的最优值、极限值研究

丁坝的布置方法直接影响到工程的效果,其关键是利用丁坝的坝后回流区。本文通过理论分析和水槽实验,提出了两岸丁坝在适当错口布置时整治范围增大的看法。获得了错口距离的最优值、极限值。错口坝的回流长度与宽度,回流与主流的分界边线的计算公式,计算结果与实验值吻合较好。

Study on the Optimum and the Limit of Alternate Space between Groins

The engineering effect is affected directly by layout of groins. Based on the theoretical analyse and the experiment, it is given in the paper that the training effect can be improved by layout selection of groins along river. The optimum and the limit alternate space, the recircu-lating flow length, the width, the boundary line of recirculating flow can be calculated by the formula given in the pater. The calculating result is in good agreement with the experiment data.