渡口坝水电站双曲拱坝坝肩煤层及采空区处理设计与施工  

Treatment Process of Coal Seams and Goaf in Double-curvature Arch Dam Abutments of Doukouba Hydropower Station and its Construction

作　　者：丁洪 李红 付迪 DING Hong;LI Hong;FU Di(Chongqing Yushui Construction Engineering Consulting Co.,Ltd.,Chongqing 401147;Chongqing Jianghe Engineering Construction Supervision Co.,Ltd.,Chongqing 401147)

机构地区：[1]重庆渝水建筑工程咨询有限公司,重庆401147 [2]重庆江河工程建设监理有限公司,重庆401147

出　　处：《长江工程职业技术学院学报》2022年第2期1-4,共4页Journal of Changjiang Institute of Technology

摘　　要：渡口坝水电站双曲拱坝,两坝肩夹有煤层及采空区,对大坝的安全性、稳定性及坝址防渗性有极大的隐患,必须处理。采用混凝土置换、充填、回填灌浆、固结灌浆等方式进行处理,处理后经检测,煤层采空区回填密实,效果良好,处理范围及结果满足设计要求。There are coal seams and goaf in both abutments of double-curvature arch dam of Doukouba Hydropower Station,which presents huge safety hazards to the safety,stability of the dam and the impermeable property of the dam site,thus requiring treatment.Such methods as concrete replacement,filling,backfill grouting,consolidation grouting are adopted for treatment.After treatment,it is tested that the goaf of coal seam is backfilled and compacted with good effect,and the treated area and its results meet the requirements of the design.

关 键 词：双曲拱坝 煤层及采空区 处理 渡口坝水电站 

分 类 号：TV223.34[水利工程—水工结构工程]