深覆盖层河道闸坝电站防沙布置试验研究  

Investigating the layout of sediment controlling facilities of dam-style station on deep overburden river

作　　者：陈荣刚[1] 雷运华[2] 张建民[1] 刘发智[1] 

机构地区：[1]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 [2]中国水电顾问集团公司成都勘测设计研究院,四川成都610072

出　　处：《吉林水利》2011年第4期6-10,12,共6页Jilin Water Resources

基　　金："教育部新世纪优秀人才计划资助"(No:NCET080378)

摘　　要：某闸坝式水电站坝址覆盖层深厚,河道欠宽阔,发电引用流量比例较高,受调节库容限制,库区泥沙将很快输移到达坝前,引水防沙问题突出。本文对施工围堰作为其电站枢纽引水防沙体系的效果进行了水工模型试验研究和分析。对四种挡沙坎布置型式进行了对比试验研究。表明,利用原有挡水围堰,结合纵向挡沙坎与排沙底孔联合作用既有利于施工方便,拉沙效果又较好,可达到电站"门前清",较好的解决了大流量闸坝式电站的引水与防沙之间的矛盾。本研究成果的成功实施可减少工程投资,缩短工期,尤其对于在低水头、大单宽的多沙河流上修建的闸坝工程具有较好的借鉴意义。The cover of the dam site of one hydropower station is deep. The river is narrow. The proportion of construction ,good for sediment transportation and good for getting clean water so that it solves the contradiction between water diversion and sediment controlling for large flow dam-style station successfully. The successful implementation of this research can reduce the investment,shortening construction period. It especially builds a good reference for low head,large single-wide, sandy river dam-style project.

关 键 词：引水防沙 挡沙坎 排沙底孔 闸坝式电站 试验研究 

分 类 号：TV66[水利工程—水利水电工程]