桐子林水电站导流明渠消能抗冲试验及明渠方案优化  

Experimental Study on Energy Dissipation and Scour Control of Diversion Open Channel and Its Optimization in Tongzilin Hydropower Station

作　　者：王立伟 周喜德 张建民[3] 雷运华[4] 

机构地区：[1]四川理工大学建筑工程学院,四川自贡643000 [2]二滩水电开发公司,四川成都610051 [3]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065 [4]中国水电顾问集团成都勘测设计研究院,四川成都610072

出　　处：《水电能源科学》2013年第12期139-142,共4页Water Resources and Power

基　　金：教育部科学技术研究重点基金资助项目(200810811);新世纪人才支持计划基金资助项目(NCET080378)

摘　　要：针对桐子林水电站明渠功能及特点,明确了明渠消能防冲的原则,通过模型试验给出了宽、窄明渠方案有无消能设施情况下的18种子方案,下游处的消能防冲水力学指标及有关参数,对比分析了各子方案明渠出口、下游河道及下游围堰堰面的冲刷情况,指出窄明渠方案中15种子方案消能防冲效果均较差,宽明渠方案中3种子方案消能防冲效果均较好,且以明渠出口处设置反坡并在出口末端设置柔性混凝土板、在其后设置长度20m左右的相互串联的钢筋石笼(子方案18)效果最好,为优化后的最佳推荐方案。Based on the role and characteristics of diversion channel in Tongzilin hydropower station, the principle of energy dissipation and scour control is determined. A total of 18 programs are tested and they include the wide and nar- row diversion channels with or without energy dissipation facilities. In the experiments, hydraulic parameters of energy dissipation and scour control and related parameters in the downstream are measured. Moreover, the erosion on outlet of diversion channel, downstream of river and cofferdams in the downstream is compared and analyzed for all of programs. The study indicates that the effects of energy dissipation and scour control for narrow diversion channels are poor howev- er, the performance of wide diversion channel is better. Moreover, the best wide diversion channel determined by the ex- periments is consisted of the reverse-slope at the outlet of diversion channel; flexible concrete slabs at the end of outlet, followed by about 20m of reinforced gabion connected each other. So, it is the recommended program.

关 键 词：水电站 导流明渠 消能防冲试验 方案优化 

分 类 号：TV551.1[水利工程—水利水电工程]