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三峡泄洪孔有几个
更新时间： 2021-01-20 01:59:33  

1、三峡泄洪孔总共有77个泄洪孔。

2、三峡大坝泄洪坝段位于长江河床中部，三峡大坝泄洪坝全长483米，设有22个溢流表孔；23个泄洪深孔；还有22个导流底孔（仅用于施工期间）；3个排漂孔。此外在左、右电站段设有7个排沙底孔。以及22个长6米、宽8.5米的导流底孔。另外26台机组（不包括地下电站7台机组）的过流通道也有一定泄洪作用。

关键词： 三峡 泄洪

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