Assessment Of Shield Constructors’ Noise Annoyance Based On Comprehensive Physiological Signals

As an important part of urban rail transit construction project,the safety and quality of tunnel construction has been widely concerned.The shield method has become one of the main methods in tunnel construction due to its advantages.The noise annoyance and cognitive decline of construction personnel who have been exposed to construction noise for a long time are the potential safety and quality problems.Assessing the noise annoyance and cognitive performance of shield construction personnel is helpful to screen out unqualified construction personnel.Therefore,the quality and safety of shield construction can be reduced.Firstly,the noise annoyance of shield construction personnel was preliminarily explored.Secondly,based on the preliminary study,the experimental design was carried out,and the comprehensive physiological signals of the construction personnel under the interference of the Shield construction noise were collected.Finally,the correlation between comprehensive physiological signals and noise annoyance was analyzed,and a noise annoyance evaluation model based on comprehensive physiological signals was proposed.In this study,Four indicators were selected as EEG signal parameters in this study,including α(AF3+AF4+F3+F4)/ β(AF3+AF4+F3+F4),α(F4)/ β(F4)-α(F3)/ β(F3),θ(Frontal)/β(Frontal)and α(Frontal)+θ(Frontal))/β(Frontal),and the correlation between noise annoyance and α(Frontal)+θ(Frontal))/β(Frontal)was the highest.RMSSD,LF/HF and HR were selected as ECG signal parameters,and the correlation between LF/HF and noise annoyance was the highest.Finally,a linear regression model based on the comprehensive physiological signals was proposed,and the usability of the model was tested by the pre-service screening simulation experiment.