大岗山水电站雾化区岩质边坡稳定性研究

水电工程中边坡规模越来越大，工程地质条件日趋复杂，工程边坡的稳定性分析日趋重要。以 在建的大岗山水电站雾化区边坡为对象，采用三维有限元法，获得自然边坡和工程边坡应力场、破坏区 分布规律，并运用三维刚体极限平衡法，分析边坡潜在的空间滑动块体，综合分析边坡在典型工况下的 整体和局部稳定性。计算结果可为实际工程及类似工程的设计与施工提供重要参考。

Study on Stability of Rock Slope in Atomization Zone of Dagangshan Hydropower Station

In hydropower projects, the slope is larger and larger in dimension, the engineering geological conditions be- come more and more complicated, and the analysis of slope stability becomes more and more important. Taking the slope in the atomized zone of Dagangshan Hydropower Station which is under construction for example, the 3D finite element method is adopted to work out the distribution regularities in the stress field and failure zone of natural slope and engi- neering slope, and the 3D rigid-body limit equilibrium method is used to analyze the potential sliding blocks of the slope in interspace and comprehensively analyze the global and local stability of the slope under typical conditions. The results would give valuable references to the practical projects and similar projects both in design and construction.