In the field of geotechnical engineering

application of fiber Bragg grating（ FBG） sensing technology has great superiority in engineering detection. Elaborate the basic principles of FBG sensors

and test is carried out through strain detection on the buried HDPE winding reinforcement culvert pipe using FBG sensor. The experimental test results and numerical simulation results are contrastive analyzed and it is found that FBG sensors has high precision

strong anti-jamming capability

simple structure

and good long-term stability

and has great prospects of application and development in the area of geotechnical engineering detection.