密云水库引水隧洞水下进水口岩塞爆破水工模型试验研究  

Blasting rock clog in subaqueous intake of water tunnel in Meiyun reservoir

作　　者：肖佐庭[1] 张训时[1] 

机构地区：[1]清华大学

出　　处：《水力发电》1995年第4期48-51,17,共5页Water Power

摘　　要：试验对深水岩塞爆破后缓冲坑泄渣的水力特性进行了研究。主要内容包括：缓冲坑泄渣全部通过闸门井的历时、缓冲坑至闸门井段典型断面的动态压力和在动水关闭闸门过程中作用在闸门上的水流脉动压力特性。得到浅型缓冲坑泄渣效果、典型断面压力峰值及其增值变化规律、闸门上脉动压力幅值和频率变化等。所得成果为工程设计提供了论据。该项目是目前国内最深的水下岩塞爆破工程，并于１９９４年１０月２８日爆破成功。The model test aimed to study hydraulic characteristics of buffer pit ballast discharge after rock clog in deep water was blasted. Its main content included travelling time of all buffer pit ballast throush sate well,dynamic pressure of typical crosssection from buffer pit to gate well,and pulsatory pressure of water flow on the gate when closing gates. The following results were obtained:effect of shallow buffer pit ballast discharge, Peak pressure of typical cross-section and its pattern of pressure increase,amplitude and frequency chanse of dynamic pressure on the gate. This proves engineering design with grounds.

关 键 词：引水隧洞 岩塞爆破 水工模型试验 岩渣 

分 类 号：TV554[水利工程—水利水电工程]