巴音沟河渠首建筑物过流能力试验研究  

Experimental Research on the Overflow Capability of Buildings in the Bayingou River Canal

作　　者：于旭永 Yu Xuyong(Xinjiang Corps Survey and Design Institute(Group)Co.,Ltd.,Shihezi 832000,Xinjiang)

机构地区：[1]新疆兵团勘测设计院(集团)有限责任公司,新疆石河子832000

出　　处：《陕西水利》2020年第2期54-56,63,共4页Shaanxi Water Resources

摘　　要：为了优化设计方案,验证泄洪闸过流能力,对拟除险加固的巴音沟河渠首引水枢纽开展水工模型试验,试验结果表明:①泄洪冲砂闸满足泄流能力要求,当闸前未产生淤积时,泄流有较大富裕;②溢流堰设计流量为42.6 m^3/s时,主流带位于溢流堰出口与引水闸之间,在引水闸口附近表面流速相对大一些,流速为0.3 m/s^0.4 m/s;③溢流堰堰面压力分布规律为上游堰面呈下降曲线,下游堰面呈上升曲线,低压区位于堰顶偏下游部位;④溢流堰设计流量为42.6 m^3/s时,引水闸闸前有绕流产生,靠近引水闸进口上游产生一个漏斗漩涡,漩涡强度小且不串通。In order to optimize the design scheme and verify the overflow capacity of the flood discharge sluice,a hydraulic model test was conducted on the headwater diversion hub of the Bayingou Canal to be strengthened.The test results show that:①The flood discharge sand sluice meets the discharge capacity requirements.When siltation occurs,there is greater wealth in the discharge.②When the design flow of the overflow weir is 42.6m^3/s,the main stream is located between the outlet of the overflow weir and the diversion sluice.The surface velocity near the diversion sluice is relatively large,and the flow velocity is 0.3 m/s^0.4m/s;③The pressure distribution pattern of the weir surface of the overflow weir is a downward curve of the upstream weir surface,and a rising curve of the downstream weir surface,and the low pressure area is located downstream of the weir top;④At 42.6m^3/s,a flow is generated in front of the diversion sluice,and a funnel vortex is generated near the upstream of the diversion sluice inlet.The vortex intensity is small and there is no collusion.

关 键 词：巴音沟河 渠首 泄洪闸 过流能力 

分 类 号：TV671[水利工程—水利水电工程]