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黄河中游地区的中小型水库和淤地坝,普遍存在着设计标准偏低、工程不配套等问题,每遇大洪水,坝库冲毁严重。为此,近年来提出了一种保坝护坝的新方案——坝面防护过水。 我国修建过水土坝有着悠久的历史。一百多年前修建的湖北省荆门县黄豹闸和赵家闸灰土护面过水土坝、山西省平遥县黎基灰土过水土坝,至今仍安全运行,发挥着雍水灌溉的作用。 由此看来,充分利用当地材料修建经济、适用的过水土坝,解决中小型水库和淤地坝的泄洪问题,是完全有希望的。
Middle and small sized reservoirs and check dams in the middle reaches of the Yellow River generally have problems such as low design standards and unmatched engineering. In each case of floods, the dams are severely destroyed. To this end, in recent years proposed a new program of dam protection dam - dam surface protection of water. Our country built a water dam has a long history. Hundreds of years ago, the Yellow Leopard Gate and the Zhaojia Gate in Hubei’s Jingmen County, Hubei Province, and the Liji limestone over-water dam in Pingyao County, Shanxi Province still operated safely and played the role of Yongshui irrigation. From this, it is entirely hopeful that full utilization of local materials to build an economical and suitable over-dam will solve the problem of flood discharge of small and medium-sized reservoirs and warping dams.