三峡二期导流航道清理中的水下爆破

Exploding Reef Underwater and Scanning Bed for the Realignment of Yangtze River at The Three Gorges

三峡二期施工期航道整治工程，是确保三峡水利枢纽在建期间和建成后航道安全畅通的重要步骤，其中完成水下清淤３３８６４万ｍ３，水下炸礁４０４９万ｍ３，硬式扫床达８０多次，最大下杆深１０２ｍ。是建国以来航道整治工程量最大，时间最短，质量要求严的工程之一。

The realignment engineering of river at the second construction period of The Three Gorges Project is an important step to ensure safe and unblocked channel during construction of water control key project of The Three Gorges and as putitinuse in future. In this engineering, 3.3864 ×10 6 m 3 of silt was cleared, 0.4049×10 6 m 3 of reef underwater was exploded, the bed was scanned for 80 times and deepest bed tested by pole was 10.2 m. The engineering is one of most tremendous amount of work at shortest time by most rigorous regulations.