南水北调中线一期穿黄工程北岸填筑渠道设计

Design of Filling Channel at North Bank Crossing Yellow River of South-to-North Water Diversion Middle Route Phase Ⅰ Project

南水北调中线穿黄工程北岸填筑渠道位于黄河滩区,填筑高度较高。该段布置有倒虹吸、桥梁等大型交叉建筑物,且基础有地震液化问题,黄河洪水上滩防护问题,防渗要求高。侧重阐述了渠道填筑设计、防渗设计、防护设计、防冻胀设计及基础处理等主要技术问题,这些技术问题在南水北调中线工程中具有一定代表性,妥善解决好这些问题,具有较显著的工程应用价值。

The embankment channel in the north bank of the middle route crossing the Yellow River of the South-to-North Water Diversion Project is located in the floodplain with a high filling height.The invert siphons,bridges,and other large-scale crossing structures exist in the area.Moreover,the foundation of this area has problems with seismic liquefaction and flood protection,thus it requires a high standard for seepage control.This paper discussed the main technical problems including the design of channel filling,design of seepage control,protection design,design of frozen prevention,and foundation treatment.These technical problems are representative occurring in the South-to-North Water Diversion Middle Route Project,and thus the solutions to solve these problems have remarkable engineering application values.