泥沙研究2026，Vol.51Issue(3)：48-55,8.DOI:10.16239/j.cnki.0468-155x.2026.03.007
玉龙喀什水库坝前冲刷漏斗模型试验研究
Experimental study on scouring funnel in front of Yulong Kashi Reservoir dam
摘要
Abstract
Reservoirs usually use regular or irregular lowering of water level for discharging sediment,forming a scouring funnel to ensure the"front clearance"of power generation tunnels.In order to ensure the safety of water intake and sediment prevention in Yulong Kashi Reservoir,to study the influencing factors of sediment discharge effect,a normal sediment physical model within a range of 2.5 km in front of the reservoir dam was established,and the effects of different flow rates for sediment flushing,dam water level and scouring duration on the shape of scouring funnel were analyzed.The results show that in the case of flushing sediment with the lowering of dam water level to 2080 m and closing the power generation tunnel,the sediment discharge effi-ciency reaches to its maximum when the flow rate through the No.2 and No.1 sediment flushing tunnels are 357 m3/s and 319 m3/s respectively,and the flushing duration is 1.33 h.In the case of flushing sediment with controlled dam water level,the sediment discharge funnel reaches to the largest when the dam water level of 2 090 m,the power generation tunnel is closed,and flow rates in the No.2 and No.1 sediment discharge tunnels are 357 m3/s and 381 m3/s respectively,and the flushing duration is 3.67 h.In addition,the guaran-tee scheme of"front clearance"is put forward to optimize the hydraulic structure.关键词
冲刷漏斗/模型试验/玉龙喀什水库Key words
scouring funnel/physical model experiment/Yulong Kashi Reservoir分类
建筑与水利引用本文复制引用
王克志,陆琴,邓安军,路子岩..玉龙喀什水库坝前冲刷漏斗模型试验研究[J].泥沙研究,2026,51(3):48-55,8.基金项目
国家自然科学基金项目(U2243237) （U2243237）
