分布式光纤传感技术在混凝土振捣质量判断中的应用

Application of Distributed Optical Fiber Sensing Technology in Concrete Vibration Quality Judgment

混凝土振捣密实对于工程质量具有重要意义,但目前缺少行之有效的混凝土振捣质量判断方法。为此,通过分布式光纤传感技术监测混凝土振捣过程中是否出现欠振或过振现象。光纤布设时需保证圆弧段半径≥10cm,避免发生弯折损坏。工程实践表明,分布式光纤传感技术可用于判断混凝土振捣质量,可及时发现振捣问题,降低返工成本,具有一定经济效益。

It is of great significance for engineering quality to vibrate and compact concrete,but there is no effective method to judge the quality of concrete vibration at present.Therefore,distributed optical fiber sensing technology is used to monitor whether there is under vibration or over vibration in the process of concrete vibration.It is necessary to ensure that the radius of the curved arc segment is more than or equal to 10 cm,which can avoid bending damage.The engineering practice shows that the distributed optical fiber sensing technology can be used to judge the vibration quality of concrete,find out the vibration quality problems in time,reduce the rework cost,and has certain economic benefits.