安阳河倒虹吸是南水北调中线工程总干渠穿越安阳河的主要建筑物,位于安阳市西北的南士旺村南,由退水闸、倒虹吸和节制闸组成。1 地质条件安阳河右岸布置进口闸及退水闸,由上到下分别为黄土状重粉质壤土、重粉质壤土、轻粉质壤土、卵石及上第三系粘土岩,基础主要置于黄土状重粉质壤土上。河床布置倒虹吸进出 Anyang River inverted siphon is the main canal of the Middle Route of the South-to-North Water Diversion Project. It is located in the south of Nan Shiwang Village in the northwest of Anyang City. It is composed of retreat gates, inverted siphons and control gates. 1 geological conditions Anyang River on the right bank of the layout of the import gate and retreat gate, from top to bottom were loam-like heavy silty loam, heavy silty loam, light silty loam, pebbles and Upper Tertiary clay rock, the foundation is mainly placed in loess Top heavy silty loam. Inverted siphon out of the river bed layout