三峡工程永久船闸高边坡工程系从左岸山体内开挖形成，两侧高边坡最大开挖深度达170 m，其下部为68 m高的直立墙，是三峡工程建设的重大技术难题。文章对三峡永久船闸高边坡设计原则和轮廓，施工程序，防渗及排水系统，高边坡加固支护措施，高边坡稳定分析以及永久船闸高边坡变形预测和高边坡监测资料验证等的研究结论和工程的重大科技成就做了介绍。

The high slope for the permanent shiplock of the Three Gorges Project (TGP), excavated from the mountain body on the left bank, is one of the major technical issues of the Project construction. The excavation for the slope on each side is 170 m deep in maximum consisting of a 68m high vertical wall on its lower part. Several aspects are described in the paper for the permanent shiplock slope including the general description, design principles and outline,construction procedures, seepage prevention and drainage system, consolidation and support measures, stability analysis, deformation prediction, monitoring data verification as well as some significant scientific and technical achievements.