丁坝冲刷及整流桩防护措施研究

Study on Protective Measures for Groins and Its Protective Means Scouring

通过丁坝局部模型试验,进一步研究了丁坝冲刷机理。在此基础上,针对丁坝防护问题,提出了在丁坝坝体布设整流桩这样一种新型的防护措施。相应的模型试验结果表明,整流桩可有效改善丁坝坝头局部水流结构,进而使丁坝坝头冲刷坑深度减小,最大冲刷部位发生偏离,有利于丁坝的稳定。

The paper further studies the scouring mechanism of groins through local groin model tests.It puts forward a new protective measure for the layout of groins aiming at security issues based on that study.The outcomes of the model tests show that the protective means can effectively improve the local flow structure at the head of groin,reduce the depth of scouring and change the maximum scouring place that are propitious to the stable of groins.