某水电站防渗土料含水率控制施工技术  

Construction Technology of Moisture Content Control of Impervious Soil Material in a Hydropower Station

作　　者：刘琪 LIU Qi(China Anneng Group First Engineering Bureau Co.,Ltd.,Nanning 530200,China)

机构地区：[1]中国安能集团第一工程局有限公司,广西南宁530200

出　　处：《红水河》2022年第5期53-56,共4页Hongshui River

摘　　要：影响大坝填筑土料压实系数的主要因素为压实功、含水率和填筑厚度,因此防渗土料含水率控制直接影响填筑料压实效果,进而影响大坝结构的整体性和防渗性。笔者以某水电站旱季、雨季特殊环境下的大坝防渗土料含水率控制为例,详细介绍了土料挖坑补水、浸焖补水、掺拌补水、填筑面补水等旱季施工技术和料源防雨、填筑面保护、快速复工的雨季施工技术,可为今后类似工程提供经验和借鉴。The main factors affecting the compaction coefficient of dam filling soil are compaction work,moisture content and filling thickness.Therefore,the moisture content control of impervious soil material directly affects the compaction effect of filling material,and then affects the integrity and impermeability of dam structure.Taking the moisture content control of dam impervious soil material under special environment in dry season and rainy season of a hydropower station as an example,the author introduces in detail the dry season construction technology of soil material digging pit for water replenishment,soaking water replenishment,mixing water replenishment and filling surface water replenishment,and the rainy season construction technology of material source rain prevention,filling surface protection and rapid resumption,which can provide experience and reference for similar projects in the future.

关 键 词：防渗土料 含水率 旱季施工 雨季施工 

分 类 号：TV521[水利工程—水利水电工程]