论文部分内容阅读
缝隙坝具有维持平时的泥砂输出的连续性、代替鱼道、改善环境等优点。但对于连续布设的缝隙坝群，其布设位置、调节泥砂效果，目前还不完全清楚。为了探索其规律，在常愿寺川进行了缝隙坝与普通坝的对比试验。首先测定缝隙形状对防砂效果的影响，其次调查了定时供给泥砂对调节效果的影响，最后分析了连续缝隙坝群的防砂效果。结果表明，窄而深的缝隙坝可减少砂峰输砂量。但对于连续的缝隙坝群在调节泥砂效果方面作用不十分理想。因此对其布设地点、构造、运用等方面，有待于进一步研究。从研究结果上看，防砂坝的效果评价，不应以每个单坝的防砂效果累加统计。现行的防砂设施计划的研究方法还有必要加以改善。
The gap dam has the advantage of maintaining the continuity of sand output during normal times, replacing the fish tracks and improving the environment. But for the continuous arrangement of the gap dam group, its location, adjust the effect of silt, it is not yet fully understood. In order to explore its regularity, Chang-Si Temple River has carried out a comparative test of the gap dam and ordinary dam. Firstly, the influence of slot shape on the sand control effect was investigated. Secondly, the effect of regular supply of silt on the regulation effect was investigated. Finally, the sand control effect of continuous slotted dam group was analyzed. The results show that the narrow and deep gap dams can reduce the amount of sands sand transported. But for the continuous gap dam group in the regulation of sediment effect is not very good. Therefore, the layout of its location, structure, use, etc., pending further study. From the results of the study, the evaluation of the effect of sand control dam should not be combined with the sand control effect of each single dam. There is still a need to improve the current research methods for sand control facilities.