马来西亚Pahang河口概念性整治方案研究

onceptual regulation options of Kuala Pahang Estuary rehabilitation in Malaysia

根据以往国内外一些主要潮汐河口深水航道的整治经验,通过马来西亚Pahang河口海域实测水文、泥沙及水深测量等现场实测资料分析,确定了Pahang河口的整治原则,即整治与疏浚相结合、采用工程措施束水攻沙及因势利导;根据整治原则,提出了Pahang河口概念性方案工程布置,即对南北河口分别进行双导堤整治,口门宽度与现有河口口门宽度一致,堤头设在波浪破碎点以外500 m,导堤采用高水堤,与现有口门沙洲高程一致,可达到防浪、防沙及束水攻沙、维持水深并保证通航的要求。

According to the channel regulation experience of the tidal estuaries both at home and abroad,based on the analysis of the measured data of the hydraulics,sediments and water depth in Pahang Estuary,regulation principles were confirmed,which was using the methods of combining the regulation with dredging works,increasing water depth by contraction works and guiding the flow by natural features of water power.On the basis of the regulation principles,the conceptual regulation options were proposed,which were that the two river mouths were regulated by two guiding jetties respectively,the width of the jetty mouth was equal to the width of the existing river mouth,the jetty head was located at the point about 500 m beyond the wave breaking point,the kind of high elevation jetty was adopted,whose elevation was same to the elevation of the existing sandbar at the river mouth,and all these methods could reach the requirement of preventing wave and sand,increasing water depth by contraction works,maintaining the navigation depth and assuring the navigation.