沁河是一条古老的河流,是黄河左岸三门峡以下一条最大支流,素有“小黄河”之称。沁河的洪水特点是来猛去速,峰高量小;河床特性为上冲下淤,摆动频繁。历史上曾多次发生决溢泛滥,给沿河人民带来了沉重的灾难。由于目前干流尚无可控制洪水的大型工程,所以下游防洪形势十分严峻,确保沁河防洪工程的安全任务依然十分艰巨。险工是堤防的险要堤段,为防止水流淘刷造成的堤防溃决,故在堤防临河修建坝、垛、护岸加以保护。险工坝埽与堤防形成了“唇 Qinhe is an ancient river, which is the largest tributary below the Sanmenxia on the left bank of the Yellow River and is known as ”Little Yellow River“. Qinhe flood features are to Meng Meng to speed, a small amount of peak height; river bed characteristics of the upper silt, swinging frequently. There have been numerous floods and overflows in history, which have brought heavy disasters to the people along the river. Due to the fact that there is no large-scale project to control floods in the mainstream at present, the flood control situation in the downstream area is very grim and it is still very arduous to ensure the safety of the Qinhe flood control project. Dangerous embankment is a dangerous section of the embankment, in order to prevent the scouring of water caused by dike collapse, it is built in the embankment Linhe dam, stack, revetment to be protected. Dangerous dams and embankments formed a ”lip