岩石岸坡水下构筑物施工综合技术

Comprehensive Construction Technologies of Underwater Building on Rock Slope

在广西来宾 B电厂采用了基础水下爆破开挖 ,抛石整平 ,构筑物船坞预制 ,水上浮运就位 ,水下混凝土封固 ,界面灌浆止水 ,隧道暗挖连接的“埋置浮箱法”施工技术 ,不仅减少了工程难度 ,降低了工程成本 ,保证 1个枯水期完成全部水下工程 ,并且不受水位变化的影响 ,为同类工程施工开创了新的技术领域。

In the construction of Guangxi Laibin Power Station,some construction methods were adopted,including underwater blasting foundation excavation,stone covering and leveling,building prefabricating,floating transportation and insertion,underwater concrete fixing and sealing,interface grouting to waterproof,tube hidden\|excavation and connection,and the technology named Buried Floating Box.The adoption of these methods not only decreases construction difficulties,reduces project cost,and ensure to finish all underwater construction work during one low water period,but also keep the project quality from influences of water level change.These methods develop a new technology area for the same kind projects.