砂砾石深覆盖层坝基处理及防渗设计研究  

Dam Foundation Treatment and Anti-seepage Design of Sand Gravel Deep Overburden

作　　者：陈宋斌 曹孟智 CHEN Song-bin;CAO Meng-zhi(Shandong Survey and Design Institute of Water Conservancy Co.,Ltd.,Guizhou branch,Guiyang 550002,China)

机构地区：[1]山东省水利勘察设计院有限公司贵州分公司,贵州贵阳550002

出　　处：《海河水利》2023年第8期92-97,共6页Haihe Water Resources

摘　　要：大坝防渗及坝体变形是工程设计的重点和难点。经地形地质条件、枢纽布置、防渗结构的可靠性及工程投资等多方面进行综合比较,选择结构稳定、投资较少、施工可操作性强的防渗方案。通过分析验证,塑性混凝土心墙+帷幕灌浆的防渗形式在深砂砾石地基是可行的,对今后在砂砾石地基建坝有一定参考价值。Dam anti-seepage and dam body deformation are key and difficult points in engineering design.After comprehensive comparison of various aspects such as terrain and geological conditions,hub layout,reliability of anti seepage structures,and engineering investment,a anti-seepage plan with stable structure,less investment,and strong construction operability was selected.Through analysis and verification,the combination of plastic concrete core wall and curtain grouting the anti-seepage form is feasible in deep sand gravel foundation,which has certain reference value for future dam construction in sand gravel foundation.

关 键 词：深覆盖层 砂砾石 塑性混凝土心墙 砂砾石坝 

分 类 号：TV697.32[水利工程—水利水电工程]