Design of model test of leakage monitoring based on distributed optical fiber temperature sensing technology

摘要

This paper discussed the design of the test model of leakage monitoring based on the distributed optical fiber temperature sensing technology, including the choice of filling and test condition. This model test can better simulate the practicable leakage of dam and canal. Through analyzing the influence level of key factors, four main factors including initial temperature, heating power, filling type and moisture content were selected. Three test patterns including the operating mode before leakage, the leakage operating mode in unsaturated zone, and the leakage operating mode in saturated zone were designed in detail. At last, the experimental process was supplied.