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葛洲坝水利枢纽大江截流工程在龙口宽度203米、长江流量4,400～4,800米~3/秒、龙口最大水深约10.7米、实测最大流速7米/秒、最终落差3.23米的情况下,于1981年1月3日7时30分以单戗双向立堵方式在上游龙口进占,1月4日19时13分胜利合龙(见封二照片)。截流历时36小时23分,抛投填料10.6万立方米,创造了日抛投强度7.2万立方米的高强度记录。
Gezhouba Water Control Project River closure project in Longkou width of 203 meters, the Yangtze River flow of 4,400 ~ 4,800 m ~ 3 / s, the maximum water depth of about 10.7 meters Longkou, the maximum measured flow rate of 7 m / s, the final drop of 3.23 meters in the case of a 1981 1 On July 3, at 7:30 on the 3rd, a single 戗 bidirectional plugging method was adopted to take up occupation in the upstream Longkou. At 1913 on January 4, the victory was won (see the photos of the first two photos). Closure lasts 36 hours and 23 minutes, throwing cast 106,000 cubic meters, creating a daily cast cast strength of 72,000 cubic meters of high-intensity records.