黄花寨水电站碾压混凝土坝大层厚现场试验成果及启示

Achievement and revelation from site experiment on thicker compacted concrete layers of RCC dam for Huanghuazhai Hydropower Station

目前国内碾压混凝土筑坝技术发展很快,但施工技术基本停留在20世纪80年代水平,为了碾压混凝土筑坝技术的发展,加快施工进度,经多方共同努力,在贵州进行了碾压层厚100cm的现场碾压试验。通过试验证明:碾压混凝土碾压层厚可以突破30cm,但要付诸实践,需做一系列的论证和研究工作,建议有关部门和学术界共同努力,使我国碾压混凝土筑坝技术再上新台阶。

The technology of RCC dam has been developed rapidly at present, but the construction technique is still on the level of 80 s. In order to step up the construction speed and promote the further development of the technology, a site experiment on the larger thickness （up to 100 cm） of compacted concrete layers for the construction has been successfully made in the pro- ject of Huanghuazhai Hydropower Station in Guizhou Province under the efforts from all the sides concerned. The experiment shows that the traditional thickness of 30 cm for the compacted concrete layer can be broken up, but it is necessary to be done in practice with a series of relevant studies and demonstrations. At last, a suggestion is made to hope all the related sectors and academic communities to give the common effort on promoting the further development of the construction technique for RCC dam in China.