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浦江县壶源江水电站引水工程由引水明渠、压力前池、压力总管和隧洞等组成。隧洞全长1041米,洞径2米,衬砌混凝上厚40厘米,其中连接压力总管的混凝土叉管长16米,内径2米,壁厚1米,采用200~#钢筋混凝土浇筑,引水流量4.0米~3/秒,设计内水压3公斤/厘米~2(见图1)。隧洞于1978年衬砌,1979年初浇筑叉管,两者接头处原设计伸缩缝,后因故未
Pujiang County Huanyuan River Hydropower Station diversion project by the diversion channel, the pressure of the former pool, pressure mains and tunnels and other components. The total length of the tunnel is 1041 meters, the diameter of the tunnel is 2 meters, and the thickness of the lining concrete is 40 cm. The length of concrete for connecting the pressure main pipe is 16 meters, the inner diameter is 2 meters and the wall thickness is 1 meter. The concrete is poured with 200 ~ # reinforced concrete, 4.0 m ~ 3 / s, the design pressure of 3 kg / cm ~ 2 (see Figure 1). The tunnel was lined in 1978 and the fork tube was cast at the beginning of 1979. The original joints of the joints were designed with expansion joints,