南水北调唐河倒虹吸混凝土施工技术

Concrete Construction Technology in Inverted Siphon of the Tang River in the South-to-North Water Transfer Project

唐河倒虹吸工程是南水北调中线总干渠工程中的大型建筑物之一,主体混凝土截至目前已基本完成,所验收单元工程质量优良率为92%,混凝土内实外光,施工缝连接平顺,无裂缝。现就混凝土施工中的原材料选定、配合比、温度控制、管身混凝土关键部位的施工措施等内容进行了浅释。

The inverted Siphon of the Tang River is one of the large-scale buildings in the Middle Route of the South-to-North Water Transfer Project. The main concrete parts have been completed up to now. The excellent rate of the quality that has been inspected is 92%. The concrete parts are excellent and construction joint are joined smoothly without cracks. The reasons of success are given from the raw materials selection, concrete mix proportion, temperature control, and the key parts of the pipe concrete.