浅谈锦屏一级水电站高边坡预应力锚索破坏性试验

Destructive Tests of Prestressed Anchor Cable for the High Slope Supporting of Jinping I Hydropower Station

锦屏一级水电站左岸边坡高度大、坡度陡、地质条件复杂,在开挖过程中,采用浅层支护与深层支护相结合,在整个左岸边坡布置了大量的预应力锚索。为验证岩体预应力锚索设计参数,优化锚索施工工艺,加快施工进度,并为大规模施工积累经验,在复杂的地质条件下做了预应力锚索破坏性试验(受力性能试验)。试验表明,工程采用的锚固材料和锚固结构满足安全要求。

The left slope of Jinping I Hydropower Station is high and steep and the geological conditions are complex. During the excavation of slope, the shallow and deep supporting was jointly adopted and a large amount of prestressed anchor cables were arranged. For verifying the design parameters, optimizing the construction process and speeding up the construction schedule, the destructive test （stress performance tests） of anchor cable are conducted in field. The tests show that the used material and structure of anchor cable meets safety requirements.