漫湾水电站是澜沧江第一期开发工程,电站建设于1987年12月20日胜利完成截流,比原计划整整提前了一年。现将有关导流、截流工程情况简介如下。漫湾电站采用河床全年断流、隧洞导流方案。电站初期导流标准为二十年一遇,相应洪水期导流流量为9500m~3/s。坝址左岸布置两条断面均为15×18米(宽×高)城门洞型的导流隧洞。1~#导流洞为有压洞,全长458米;2~#洞为无压洞全长423米。1~#导流洞进 Manwan Hydropower Station is the first phase of the Lancang River development project, power station construction in December 20, 1987 to complete the closure of the victory, a full year earlier than originally planned. Now the diversion, closure of the project profile is as follows. Manwan Power Station uses river bed year-off, tunnel diversion program. The initial diversion standard of power station is 20 years, and the corresponding flood discharge flow is 9500m ~ 3 / s. On the left bank of the dam site, two diversion tunnels with 15 × 18m (width × height) gates are arranged. 1 ~ # diversion tunnel is a pressure hole, a total length of 458 meters; 2 ~ # hole for the non-pressure hole length of 423 meters. 1 ~ # diversion hole into