论文部分内容阅读
一、引言梅山水库水电站为了保护水输机的经常运转及泄洪钢管的正常工作,在引水管及坝身泄洪钢管处都设有拦污栅。一般认为拦污栅是泄水建筑物中不甚重要的结构物。因而在设计时,常常研究。考虑得不够。中外许多已建威的拦污栅中,曾不止一处由于考虑不周或未能抓住要点,而在经济上和管理运用上造成不少损失和困难。近年来,由于水利技术的研究工作益趋细致,在苏联和欧美已经注意到拦污栅结构布置的重要性;合理地选择拥污栅的形式,已被认为与选择管道进口曲线和渐变段等有着同等重要的意义。拦污栅的形式和尺寸是多种多样的,它和下列因素有着密切的关系:进口建筑物的形式,在水面以下
I. INTRODUCTION Meishan Reservoir Hydropower Station In order to protect the normal operation of the water transport turbine and the normal work of the spillway steel pipe, trash racks are provided at the diversion pipe and dam spillway steel pipe. It is generally accepted that trash racks are less important structures in drainage structures. Therefore, in the design, often study. Not considered enough. Many of the already-established trash rackets at home and abroad have caused quite a lot of losses and difficulties in economic and management applications due to their lack of consideration or failure to grasp the key points. In recent years, as the research work of water conservancy technology has become more and more detailed, the importance of structural arrangement of trash rack has been noticed in the Soviet Union and Europe and the United States. The rational choice of the form of pick-up grid has been considered as the choice of pipeline import curve and gradual change Have the same important meaning. Trash rack in the form and size is varied, and it is closely related to the following factors: the form of imported buildings, below the surface of the water