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广西大化水电站的截流是我国目前较大的截流工程之一。二期导截流工程戗堤从1980年10月上旬以立堵法开始预进占;10月23日进入龙口段,当晚11时30分胜利合龙,前后历经24小时。截流最大流速为5.25米/秒,落差为2.12米,流量为1.240米~3/秒,石料日抛投强度为12,600米~3。截流比原计划提前一个月,为电站二期工程基坑开挖和混凝土浇筑赢得了时间。
Closure of Guangxi Dahua Hydropower Station is one of the larger river closure projects in our country. The second phase of the river closure dredging project embankment from early October 1980 to legislation block method began pre-capture; October 23 into the Longkou section, 11:30 win the night of victory, before and after 24 hours. The maximum flow-rate closure is 5.25 m / s, the drop is 2.12 m, the flow rate is 1.240 m 3 / s, and the daily stone throwing intensity is 12,600 m 3. Closure a month earlier than originally planned, won the time for excavation and concrete pouring of the second phase of the power station project.