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1989年10月25日至29日由水利水电规划设计总院、水力发电工程学会水工及水电站建筑物专委会、水利学会水工结构专业委员会、全国压力管道情报网、湖南省水利、水电学会等六个单位联合发起并委托湖南省水电学会组织筹办的第二届全国水电站压力钢管学术讨论会在长沙中南勘测设计院召开。会议集中讨论了坝内埋管、下游坝面管、地下埋管、明管、岔管三大布置类型管道。
October 25, 1989 to 29 by the General Planning and Design Institute of Water Conservancy and Hydropower, hydropower engineering hydropower and hydropower station building special committee, hydraulic Institute of Hydraulic Structure Professional Committee, the National Pressure Pipeline Information Network, Hunan Province, water conservancy, hydropower Society and other six units jointly initiated and commissioned by the Hunan Provincial Hydropower Society organized the second session of the National Hydropower Station Steel Pipe Symposium was held in Changsha Zhongnan Investigation Design Institute. The meeting focused on the buried pipe dam, the downstream dam surface pipe, buried underground pipe, open pipe, fork pipe three layout type of pipeline.