预应力倒虹吸管身段模型混凝土浇筑试验

Discussion on the Prestressed Concrete Placement Test in the Inverted Siphon Tube Body Model

通过对南沙河倒虹吸管身段混凝土浇筑进行模型试验，验证混凝土浇筑工艺流程及浇筑质量，确定混凝土拌合物拌和时间、纤维素均匀性、初凝时间、塌落度等，获得相应技术参数，为管身混凝土的浇筑提供依据。

The concrete pouring tube body model tests in the Southern Shahe River Inverted Siphon Project has been carried out to verify the con- crete pouring process and the pouring quality, to determine the mixing time of concrete mixture, cellulose uniformity, the initial setting time and slump for the corresponding technical parameters,which can provide the basis for concrete pouring of the aqueduct body.