<正>本课题从木材流送的角度研究高水头单漂水力过坝的技术条件。 水工模型是按1/25缩尺制做的。采用电传感器量测了漂木对漂木道撞击的频率和强度,测定了从5％至13％坡度的漂木道的水深和流速。在模型试验中研究了高强度加糙的漂木道产生渗气水流的原因。对模型试验的主要过程做了电视录像。 本文给出了木头高50米的漂木道的适宜坡度和适宜的出口条件,并且对龚嘴电站漂木道的改造提出了建议。

In this paper the technological conditions required to float logs across high-head dams by hydraulic means are discussed.With a hydroengineering model of 1/25 in scale, the frequence and strength of the impact made by the floating log on the flume were measured by a transducer;also measured were the depth and velocity of the flow in the flume with gradients from 5% to 13%. In the experiment the cause of aeration in the flume added with intensive rough has been studied as well. The main process of the experiment has been recorded by a video recorder.This paper gives the optimum gradient and outlet conditions for the flume of 50 meters water-head, and presents suggestions for the reconstruction of the flume at Gongzui Hydropower Station.