充气堰在日本已获得广泛的应用,然而近年来才应用到水电工程中。1986年位于日本奈良县境内的Kawarbi水电工程投入运行,小俣充气堰作为该工程引水建筑物,节省了造价。小俣充气堰顶长为26m,是根据在满足洪水控制要求的最小河流障碍比的条件下,堰尽可能长的原则设计的。小俣充气堰的设计河 Inflatable weir has been widely used in Japan, but in recent years it has been applied to hydropower projects. In 1986, the Kawarbi Hydropower Project located in Nara Prefecture of Japan was put into operation. As a water diversion project, the small weir inflatable weir saved the cost. The minimum length of the weir inflatable weir is 26 m, designed on the principle that the weir should be as long as possible under the conditions of the minimum river obstruction required to meet flood control requirements. Small 俣 inflatable weir design river