摘要
位于深厚覆盖层的土石坝,大坝基础防渗墙在水库蓄水后往往会发生较大的变形。结合瀑布沟水电站工程实际情况,对防渗墙顶部灌浆廊道的结构设计做了有益的探讨,提出了环向结构缝下游采用加强固结灌浆处理,依据变形特点控制止水结构的方位,环向结构缝预留二期混凝土,主防渗墙在平面上采用微拱折线布置形式等具体建议,可供同类型工程参考。
The embankment dam of Pubugou Hydropower Station locates on heavy overburden. To meet the deformation of dam foundation cutoff wall after water impoundment, the grouting gallery on the top of cutoff wall was specially designed. The downstream section of circumferential structural joint of gallery is strengthened by consolidation grouting, the position of seal is fixed according to deformation characteristics, the circumferential structural joint concrete is pouring by two phase, and the axis of main cutoff wall is a arched broken-line. The experiences can be as reference for similar projects.
出处
《水力发电》
北大核心
2010年第6期54-55,59,共3页
Water Power
关键词
土石坝
灌浆廊道
结构形式
瀑布沟水电站
embankment dam
grouting gallery
structure
Pubugou Hydropower Station
