鹅头型分汊河段变化特征及治理措施

Goose-head variation characteristics of braided river and its control measures

鹅头型汊道是长江中下游典型的弯曲分汊河型之一,窑监、陆溪口、罗湖洲等水道就属于这类河型。鹅头型汊道往往多汊并存、洲滩易变、航槽摆动、河道变化频繁。为了保障航道畅通,稳定河势必须对此类河道进行整治。根据有关资料,分析鹅头型汊道的变化特征及碍航特点,结合目前已实施的几个鹅头型分汊河道航道整治工程,提出鹅头型汊道的治理方法。

Goose-head inlet is one of typical bending bifurcated reaches of the middle and lower Yangtze River. Channel such as Yaojian, Luxikou , Luohuzhou watercourse belong to this type. Goose head inlet is usually characterized by multi-branch-state swing, beach volatile, air tank, and frequent channel change. To ensure smooth waterway and stable regime, we must regulate this type of channel. Based on relevant information, this paper analyzes variation characteristics and navigation-obstruction features of a goose head shaped inlet. Combining with several regulation works concerning goose-head bifurcated channel, this paper presents the regulation measures for the goose-head inlet channel.