泗渡河水电站拱坝左坝肩处理及稳定分析

Stability Analysis of Left Abutment of the Arch Dam in Siduhe Hydropower Station

泗渡河水电站大坝左坝肩地质条件较差,通过对坝轴线调整避开或减少地质构造对坝端的不利影响,并选择了混合线型拱坝较好的适应了轴线上移后的两岸地形的不对称。最终通过计算得出左坝肩稳定的结论。

In the left abutment of the arch dam in Siduhe hydropower station , the geological condition is not satisfactory . Therefore , an adjustment is made in the dam axis to avoid the negative influence of the geological formations on stability of the arch abutment .Also, the arch dam of hybrid curve type is chosen , which fits the asymmetric terrain better when the dam axis moves upstream .Stability analysis of the dam abutment shows that it is stable .