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以边坡失稳的普遍机制为基础,对边坡岩体的应力环境变迁、表生环境下边坡岩体的演化过程及岩质边坡加固方案优化问题进行了初步探讨。结果表明:坡面卸载诱发的应力场变化决定了边坡失稳的必然性,降水起源的地下水是驱动边坡岩体发生渐进性演变的核心因素;应力场恢复和防水是边坡加固方案优选的首要目标;预应力地锚群应成为岩质边坡加固的首选方案;在坡面设置坚固的防水屏障不仅可以遏制岩体表生演化,而且对防止地锚腱体松弛及防腐也是重要的。
Based on the general mechanism of slope instability, the stress environment changes of slope rock mass, the evolution process of slope rock mass under surface environment and the optimization of rock slope reinforcement are discussed. The results show that the change of stress field induced by unloading of slope agrees with the inevitability of slope instability. The groundwater of precipitation origin is the core factor that causes gradual evolution of slope rock mass. The recovery of stress field and waterproofing are the optimal solutions for slope reinforcement The first goal is that the prestressed anchorage group should be the first choice for rock slope reinforcement. Setting a solid waterproof barrier on the slope can not only prevent the epigenetic evolution of the rock mass, but also prevent slackening and corrosion of the anchorage.