光纤光栅位移传感器在边坡监测中的应用研究

针对传统的边坡监测不能依据边坡工程实际实时动态地掌握边坡发展、变形、破坏过程的问题,提出将光纤光栅位移传感器布设在露天矿工程潜在滑动面上对位移数据进行精确采集并预警的方法。该方法根据得到的位移数据掌握边坡变形破坏过程,然后依据边坡发展变化规律判别滑坡的临滑时刻,从而作出及时准确的预警。试验结果表明,将光纤光栅位移传感器应用在边坡监测中能够得到动态的位移监测曲线,同时依此作出的预警十分准确有效。

Application research of fiber grating displacement sensor in slope monitoring

In view of problem that traditional slope monitoring cannot master process of development, deformation and failure of slope in real-time and dynamically according to actual slope engineering,the paper proposed a method to set fiber grating displacement sensor on potential sliding surface in open pit mine engineering to collect displacement data accurately and make early warning.The method masters deformation failure process of the slope based upon the detected data,and then discriminates sliding time of landslide according to development and change law of the slope so as to make early warning in time and accurately.The test result shows that the fiber grating displacement sensor applied in slope monitoring can obtain dynamic displacement monitoring curve and make early warning accurately and effectively.