三峡导截流工程的新问题与新特点（代《专辑》序）三峡工程大江截流标志着工程建设进入一个新阶段，也是施工中困难众多，矛盾集中的一个阶段。在第一期施工的三年中，右岸要完成明渠开挖（泄放百年一遇流量，等于挖了一条新长江），混凝土纵向围堰浇筑和三期碾压混凝土围... The New Problems and New Features of the Three Gorges Diversion Project (on behalf of the “Album” Preface) The closure of the Three Gorges Project marks that the construction of the project has entered a new stage and is also a phase in which many difficulties and contradictions are concentrated in construction. In the first phase of construction, the excavation of the open channel (discharge of once-in-a-hundred-year flow equals to digging a new Yangtze River), the concrete longitudinal cofferdam and the third-stage roller compacted concrete ...