中文摘要：

受青藏高原挽近期以来持续隆升的影响，中国西南、西北地区，尤其是环青藏高原的东侧地带，河流深切，地形地质条件复杂，自然以及人工开挖高边坡稳定性问题极为突出，构成中国最具特色的工程地质和岩石力学问题之一。结合青藏高原隆升这一重大地学事件，较全面地分析总结了环青藏高原周边地带岩石高边坡发育的典型特征，指出边坡高陡、形成历史短、地应力高及变形破坏过程复杂是这一地区岩石高边坡发育的主要特征；不论天然或是人工高边坡，均可视为高地应力环境下快速卸荷过程的产物。以此为基础，在总结西南地区大量工程实践的基础上，建立卸荷条件下岩石高边坡发育的动力过程及三阶段演化模式，提出了其时间和空间演化的基本序列，以及不同演化阶段岩石边坡变形破坏的发育特征及稳定性意义。最后，从岩石高边坡发育演化的过程特性出发，提出岩石高边坡稳定性不仅是一个强度稳定性问题，更是一个变形稳定性问题；同时建立岩石高边坡变形稳定性分析的基本原理、理论框架和技术途径，并从灾害控制的角度提出岩石高边坡变形控制的工程原理，探讨变形控制的时机及控制标准问题。

英文摘要：

Owing to the sustainable uplifting of Qinghai-Tibet Plateau since the later geological time, geologic and topographic conditions are getting more complicated in the southwest and northwest of China, such as deeper river downcutting, especially, in the east flank around Qinghai-Tibet Plateau. So stability problems of both natural and excavated slopes are very prominent in these zones, which is one of the most characteristic issues in both academic fields of engineering geology and rock mechanics. Together with the momentous geology event that the Qinghai-Tibet Plateau is uplifting, typical development characteristics of high rock slones around Qinghai-Tibet Plateau were analyzed and summarized. The issues are covered m high and steep slopes, snort history of evolution, high geostress, and complicated deformation and failure processes. They can all be regarded as the results from rapid unloading under the high geostress conditions. According to the issues and a great number of engineering cases, the geodynamical processes of high rock slope development under unloading and 3-stage evolution mode are established, where time and space evolution sequences are considered. Simultaneously, characteristics and stability significance of slope deformation and failure in different evolution stages are also put forward. Finally, in terms of evolution characteristics of slope, it is pointed out that the stability of high rock slope is the problem of deformation stability, as well as the problem of strength stability. Basic principle, theoretical framework and technical measures of stability analysis for slope deformation are established. In view of geohazard control, engineering principle of controlling deformation is presented： and time option and criteria of controlling deformation are also discussed.