浅议渡槽现浇法施工技术

钢筋混凝土渡槽是灌区常用的输水水工建筑物。槽身的支承结构有拱肋、排架、砌石边墩等形式。槽壳断面有矩形、U形,施工方法根据渡槽的形式、尺寸、构件重量、吊装设备、地形和自然条件等因素而定。一般多采用预制吊装、预制吊装与现浇法结合及整体现浇法施工。本文着重介绍石头河灌区东干渠东滑峪支线渡槽整体现浇法施工技术。

Brief Discussion on Cast-in-situ Coustruction Technique for Flume

The reinforced concrete flume is a water conveyance structure normally used in irrigation areas,which includes such the supporting structures as arch ribs,framed bents,stone abutment piers and so on,and appears as two sectional forms,i.e.rectangular section and U-shaped one.Its construction method is determined based on such the factors as its type,size,component weight,handling set,as well as the topographical and natural conditions. Such the construction methods are usually used as the precasting handling method,cast-in-situ method,combined method of the two methods.Here,the cast-in-situ construction method is introduced mainly,which is applied in the construction for the flume in the east main canal of Shitouhe Irrigation Area.