洪家渡水电站过水建筑物工程技术问题及对策

Engineering Technology Problems & Countermeasures of Discharge Structures of Hongjiadu Hydropower Station

洪家渡水电站过水建筑物的工程地质和水文地质条件复杂,存在水工隧洞的高外水压力、不良地质段施工处理、高速水流防蚀、消能防冲与雾化防治、压力钢管灌浆、左岸进水口顺向坡稳定及衬砌混凝土缝面结构处理等众多问题,同时建设工期十分紧张。为此,设计对存在的主要工程技术问题进行了系统的分析和深入的研究,提出了相应的对策和措施,满足了工程建设的需要。

The engineeringgeological and hydro-geological conditions of discharge structures are very complicated in Hongjiadu Hydropower Station, there are many problems such as high outside water pressure on tunnels, treatment of unfavorable geological sections in construction, corrosion protection of high speedflow, erosion control of dissipation & prevention of atomization, grouting for penstock, stability of consequent side at inlet on the left bank, structural treatment of liner concrete slits, as well as short construction time and etc.. Systematically analyzing and deeply researching those main engineering problems, the designers have raised relevant countermeasures, and met requirement of engineering.