黄河主河道纵向大型堆石围堰施工技术研究

Research on Construction Technology of Longitudinal Large Rockfill Cofferdam in the Main River of the Yellow River

在水利工程施工中,围堰技术并非简单的工艺,黄河主河道填筑大型纵向围堰在国内的实施案例较少,通过提升水下地形测量的准确性及可操作性、动水中进占体抛投料物计算、土石围堰中高压旋喷防渗墙区域细粒料填筑、围堰迎水面抗冲刷的技术研究,形成一套完整的主河道纵向围堰施工技术。

In water conservancy project construction,cofferdam technology is not a simple process.There are few implementation cases of large-scale longitudinal cofferdams in the main Yellow River channel in China.A complete set of longitudinal cofferdam construction techniques for the main river has been formed by improving the accuracy and operability of underwater terrain measurement,calculating the amount of materials thrown into the moving water,filling the high-pressure rotary jet anti-seepage wall area with fine particles in the earth-rock cofferdam,and researching the anti erosion technology of the upstream surface of the cofferdam.