摘要： 本文介绍了三峡永久船闸北线四闸室结构缝防渗处理工程中处理的工艺、使用的材料、施工的过程。

Abstract: This paper introduces the technology of anti-seepage treatment on structural joints in the fourth lock chamber northern in TGP’s permanent lock, mainly states the technique and material used in project as well as construction process.