Abstract: Deformation monitoring, as a key part in slope monitoring during engineering construction, is especially important for slope stability evaluation. Many advanced instruments have been applied to slope deformation monitoring. This paper introduces the working principle of SAA array displacement measurement technology and its application in pumped storage power stations. The practical application to power station slope shows that the SAA has the advantages including automatic real-time acquisition, 3D measurement, high precision, reusability, convenient transportation and storage, flexible installation, easy remote monitoring, etc. It has obvious advantages for early warning and has a broad application prospect in slope monitoring.

Key words: Shape Accel Array(SAA), pumped storage power station, slope, deformation monitoring

摘要： 工程建设中，变形监测是边坡监测的重点，对于边坡稳定性评价尤为重要，诸多先进仪器相继应用于边坡变形监测中。介绍了SAA阵列式位移测量技术的工作原理及在抽水蓄能电站边坡中的实际应用。结果表明SAA 阵列位移计具有自动实时采集、3D测量、高精度、可重复利用、运输储存方便、安装灵活、易于实现远程监测等优点，在边坡变形监测和预警中具有明显优势，应用前景广阔。

关键词: 阵列式位移计（SAA）, 抽水蓄能电站, 边坡, 变形监测