近几年来,挪威在地下电站布置方面有了新的发展,其中很重要的一项就是:取消一般倾角为45°的斜井;用1:10～1:15斜度的非衬砌高压隧洞取代水平低压引水隧洞;用容积较小的密闭调压室取代开敞式调压井(见图1)。在密闭调压室内,有一部分空间充满压缩空气,其作用如同一个缓冲器,用以减轻作 In recent years, there have been new developments in the layout of underground power stations in Norway, of which one of the most important is the elimination of inclined shafts with a general inclination of 45 °; the replacement of non-lining high pressure tunnels with a slope of 1:10 to 1: 15 Horizontal low-pressure diversion tunnel; use a smaller volume of closed surge chamber to replace the open surge tank (see Figure 1). In an airtight chamber, a portion of the space is filled with compressed air, acting as a bumper to relieve