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不做围堰、不清基、不做防渗体,用定向爆破进行筑坝的方法来源于实践。如我国四川雷波县的马湖坝由天然山体崩塌而成,坝高达70米,蓄水3~4亿立米。岷江上游的大小“海子”是1933年叠溪大地震时山崩而成的二座天然湖泊,坝高达百米以上,蓄水8000万和5000万立米。据了解苏联有27座天然坝,其中最高的是塔吉克加盟共和国境内的沙衣坝,高740
Do not cofferdam, unclear base, do not seepage control body, with directional blasting damming method comes from practice. For example, the Mahu dam in Leibo County, Sichuan Province, collapsed from a natural mountain, with a dam height of 70 meters and an impoundment of 300 to 400 million cubic meters. The size of the upper reaches of Minjiang River “Haizi” is a natural lake in landslide caused by the Diexi earthquake in 1933. The dam is up to a hundred meters high and contains 80 million water meters and 50 million cubic meters of water. It is understood that the Soviet Union has 27 natural dams, the highest of which is Sabah in the territory of the Republic of Tajikistan, 740