川江风簸碛滩河床演变及航道整治  

Channel bed variation and water way regulation of Fengboqi Shoal in the Sichuan Section of the Yangtze River

作　　者：傅华[1] 马耀昌 王士毅 

机构地区：[1]重庆交通学院河海学院,重庆400074 [2]长江水利委员会长江上游水文水资源勘测局,重庆400014 [3]长江重庆航道工程局,重庆400011

出　　处：《泥沙研究》2006年第6期70-74,共5页Journal of Sediment Research

基　　金："973"项目编号(2003CB415205);重庆市自然科学基金项目CSTCBB00117

摘　　要：对川江风簸碛滩河床演变特性及碍航原因进行了分析,针对风簸碛滩弯曲,分汊,左槽过于弯曲、右槽枯水水浅的特点,确定了削弱左槽,开辟顺直右槽为枯水航槽的治理措施。通过疏浚扩大航道尺度,布置整治建筑物控制河势,增大右槽枯水流量,以保持挖槽稳定。整治后,经一个水文年的水沙作用,碛头坝束流和导流的作用明显,右槽3m等深线贯通,上、下浅区均满足了航道尺度要求,航槽基本稳定。In terms of the character of width, braid and bend of the Fenghoqi shoal reach in the Chuanjiang River, authors analyzed the characteristic of the channel bed variation and the causes of navigation obstruction. Regulation projects have been taken to weaken the left bend channel and strengthen the shallow right channel as the low water-level navigation channel. Dredging was used to widen the channel, and regulating constructions were used to control river regime. Through these measurments, a stable right channel with bigger scale and flow discharge in the low water-level period was reached. Observation data show that the cross dam and guide wall in the front of the shoal is good for diversion, 3m bathymetric line in the right channel went through after one year of regulation.

关 键 词：川江 风簸碛滩 河床演变 航道 整治 

分 类 号：TV147[水利工程—水力学及河流动力学]