The temperature compensation of emergence data has always been a primary impediment to the application of the Fibre Emergence Sensing Technology

for instance

BOTDR

to projects in practice.Although there have emerged quite a few theories in the hope of solving this problem

they are all deficient in real effects.This article provides a new method of BOTDR temperature compensation through the example analysis of the Fibre Emergence Inspection Project in the 3# tunnel of Bainijing

Yunnan.By using this method to analyze the temperature field in the tunnel

it shows that the temperature change of the temperature field in the tunnel is obviously greater than that in tunnel structure.However

in the general trend of the temperature change

they all maintain consistent with the local climate.