黄金坪水电站进水口边坡稳定监测分析

为研究黄金坪水电站泄洪洞进水口边坡稳定问题，结合边坡的多种监测成果，对边坡的表面和深部变形进行了分析，讨论了多点位移计与锚杆应力、锚索应力的关系，并分析了边坡裂缝产生的原因。结果表明：自然边坡裂缝是由于表部相对刚性层与深部岩体拉裂而形成的，工程边坡裂缝是软弱岩体及结构面局部块体挤压而形成的，边坡属于深部变形，增加深部锚索后，裂缝变形得到控制，边坡的变形逐渐趋于稳定。

Monitoring Analysis of Diversion Tunnel Slope in Huangjinping Hydropower Station

In order to study the slop stability of Huangjinping hydropower station,combining with a variety of monitoring results of the slope, both the surface and deep deformation were analyzed, the relation between multiple position extensometer and anchor stress, anchor cable stress were discussed,and the causes of cracks formation in the slope were also analyzed. The results showed that the cracks on the natural slope are formed due to the tensile force between the relative rigid layer and the deep rock mass, while the engineering slope cracks are formed by the extrusion between the weak rock mass and the local block of the structure plane,and the slope deformation belongs to the deep deformation, as the deep anchor cable increased, the crack deformation is under control and the slope becomes stable gradually.