Mountainous rivers always have steep slope and swift current, all to navigation -obstructing rapids everywhere. This paper analyzes a variety of navigation - obstructing flow pattern of rocky rapids in mountainous rivers and their water characteristics and the impact on navigation, and proposed regulations for navigation -obstructing rapids.%山区河流坡陡流急,各种碍航滩险随处可见。分析了山区河流石质滩险的各种碍航流态及水利特性以及对船舶航行的影响,并提出各碍航滩险的整治措施。
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