山西万家寨引黄工程隧洞变形缝防渗施工技术

On Anti-seepage Construction Technique of Tunnel Deformation Joint in Shanxi Wanjiazhai Yellow River Diversion Project

隧洞防渗处理直接关系到隧洞工程能否正常使用及安全运行,变形缝防渗处理是隧洞防渗的关键。文中重点分析介绍了山西万家寨引黄工程隧洞变形缝防渗施工中橡胶止水带、双组分聚硫密封胶、闭孔泡沫板及遇水膨胀防渗条的施工技术措施及方法。

The anti-seepage treatment of tunnel is directly related to the normal use and security operation of tunnel.The anti-seepage treatment of deformation joint is the key link of tunnel anti-seepage.The paper analyzes and introduces four kinds of construction technique measures and methods to treat anti-seepage of deformation joints in the tunnel of Shanxi Wanjiazhai Yellow River Diversion Project.They are the rubber water-sealing tape,the twocomponent polysulfide sealant,the closed-cell foam board and the water-swelling anti-seepage strip.