真空激光变形监测系统位移规律异常分析研究

摘要

介绍了深溪沟水电站坝顶真空激光变形监测系统位移规律的异常现象，就此进行系统的异常原因分析及测试，并对分析成果进行复核验证。通过对归一系数的改正，有效解决了坝顶真空激光垂直方向和水平方向位移变形规律均呈现“锯齿状”的异常规律，坝段间（或坝块间）相邻测点变形差异和坝顶不均匀上抬现象得到明显改善，可供后续工程参考和借鉴。%In the displacement monitoring values obtained from the vacuum laser deformation monitoring system in Shenxigou Hydropower Station , abnormal zigzag changes are observed .Reasons of this problem are analyzed .Treatment measures are then proposed and tested .With a correction of the normalization coefficient , the abnormal zigzag phenome-na in the vertical and horizontal displacement monitoring values of the dam crest are effectively removed .Also, the de-formation differences between monitoring points of adjacent dam sections ( or dam blocks ) and uneven uplift in the dam crest are also improved .It could be a useful reference for similar projects .