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一、基本情况 (一)概况 三河上游拦河坝位于江苏省三河闸上游右侧,距三河闸约400米,坝身长643米。它是洪泽湖大堤的重要组成部分,是里下河地区3000万亩耕地,2000万人口生命财产的安全屏障。该坝始建于1953年,地基土质为湖相沉积,有较厚淤泥层,加之水中填土筑坝,坝身长期处于沉陷蠕变状态,防洪抗震稳定性不足,是洪
I. Basic Information (I) Overview The upstream dam of the Three Rivers is located on the upper reaches of the upper reaches of Sanhe Gate, Jiangsu Province, about 400 meters away from Sanhe Gate and has a dam length of 643 meters. It is Hongze Lake embankment an important part of the Lixiahe area 30 million mu of cultivated land, 20 million people’s lives and property safety barrier. The dam was founded in 1953, the foundation soil lacustrine sediment, thick mud layer, combined with water fill dam, dam in a long time in the state of subsidence creep, flood control and seismic stability is insufficient, flood