摘要
九甸峡水利枢纽混凝土面板堆石坝地处高寒峡谷地区、覆盖层较深、地震设防烈度高、风速较大,自然条件对面板的施工极为不利。通过把面板混凝土质量控制分解为内在质量控制和外在质量控制两个方面,针对工程特点和难点细化了控制目标,对施工关键工序提出了控制要求。面板浇筑完成后进行检查,没有发现结构性裂缝,库水位最高蓄至2 201.0 m(距正常蓄水位1.0 m),面板未发现裂缝,运行良好。
Jiudianxia CFRD dam locates on high-cold valley area with deep overburden on dam site,high seismic intensity and higher wind speed.The natural condition on the dam site is extremely unfavorable for slab construction.The slab concrete quality control was divided into internal and external quality controls.The control objectives for difficult constructions were detailed and the control requirements for key constructing process were proposed.No structural crack is found in the slab after pouring and no crack found after impounding water to the altitude of 2201.0 m.
出处
《水力发电》
北大核心
2010年第11期71-73,共3页
Water Power
