基于光纤布拉格光栅(FBG)传感器技术,针对边坡开挖过程滑坡监测问题,通过在边坡布设的多个传感器组成的监测系统,测得实验过程中传感器表面应变的变化规律,实现对滑坡体内部位移的监测;运用K值标准差准则,将边坡失稳滑动规律定量化。实验结果表明,钢筋应变传感器测量的滑坡体内部位移变化与理论分析一致,表明钢筋传感器可实现对滑坡的准确监测;通过内部位移的微小变化的监测,可实现对边坡失稳进行预警。 Based on Fiber Bragg Grating (FBG) sensor technology, aiming at the problem of landslide monitoring during slope excavation, the variation of surface strain of the sensor during the experiment was measured by the monitoring system composed of multiple sensors laid on the slope, Internal displacement monitoring; using K-value standard deviation criterion, the sliding instability of the slope quantitative law. The experimental results show that the displacement change of the landslide body measured by the steel bar strain sensor is consistent with the theoretical analysis, indicating that the steel bar sensor can accurately monitor the landslide. The monitoring of the small internal displacement can be used to pre-warning the slope instability.