三门峡库区潼关—三门峡河段目前存在的主要问题是河势变化大、塌滩塌岸严重。初步分析认为 ,三门峡水库在“蓄清排浑”运用方式下 ,库岸结构松散、工程布局不够合理及工程数量少是河势变化和塌滩塌岸的主要原因 ,并据此提出了在潼三河段采取上段以防冲为主 ,中段以防冲为主、防浪为辅 ,下段以防浪为主、防冲为辅的工程治理措施 ,并改造加固现有工程 The main problems existing in the Tongguan-Sanmenxia reach of the Sanmenxia Reservoir area are the large changes in the river regime and the serious collapse of the bank. Preliminary analysis shows that the main reason for the change of river regime and bank collapse is the reason that Sanmenxia Reservoir is under the mode of “clearing and discharging muddy” with loose structure of bank and bank, inadequate project layout and less number of projects. Based on this, Three sections to take the upper section of the main anti-punching, the middle anti-punching, wave-assisted, the lower section to wave-based, anti-red supplemented by the project management measures and transformation of existing projects