Unload and unloading zones of high rock slope are familiar phenomenon in southwest area of China, which influence stability of rock slope and other rock-engineering problem.

• 摘要边坡卸荷及其卸荷带是西南地区高边坡一种常见的现象，对岩石边坡稳定性及其它岩石工程问题有重要的影响。