南水北调中线总干渠建筑物施工研究

Research on the structure construction on the main canal of the middle route project of South-to-North Water Transfer

南水北调中线工程是我国迄今为止拟建规模最大的跨流域调水基础设施工程。由于该工程系跨地域、跨气候带调水,覆盖面广,输水流量大,建筑物等级高,结构尺寸断面大,且总干渠上建筑物又多为薄壁、板梁结构,其施工较常规水工建筑物有所不同。就总干渠与沿线相交河流在施工期的导流方式;混凝土原材料的选择;施工设备的选择以及施工总体安排等问题进行了论述。

The middle route project of the South-to-North Water Transfer is the largest trans-basin water transfer project planned to be built in China. For the trans-region and trans-climatic-belt water transfer, the large covering area and transferring discharge of the project, the structures are of high-grade ones and large sizes, and the most of them on the main canal are thin wall and slab-girder structures and the construction work is different from that of the conventional hydraulic structures. This paper discusses the issues such as water diversion of the rivers crossed with the main canal, the selection of concrete material, and construction equipment, and the general construction arrangement, etc.