Abstract: The colluvium on the left bank of Shaping II hydropower station is thick, and the intake channel to the power house passes the toe of the colluvium on the left bank. To avoid the problem of local instability caused by excavation of intake channel on low elevation of the colluvium, the pile sheet retaining wall is used to support the front edge of the colluvium. This paper mainly introduces the key points in design and calculation of the structure, aiming to provide reference for similar projects.

Key words: colluvium, pile sheet retaining wall, slide-resisting pile, Shaping II hydropower station

摘要：

沙坪二级水电站左岸崩坡积体深厚，厂房进水渠穿过左岸崩坡积体坡脚处。为避免崩坡积体低高程处因进水渠切脚开挖引起的局部稳定性问题，在崩坡积体前缘采用桩板式挡墙进行支挡。笔者主要介绍了该结构的设计及计算分析要点，旨在为类似工程提供借鉴。

关键词: 崩坡积体, 桩板式挡墙, 抗滑桩, 沙坪二级水电站