Subway station safety construction early warning method

The invention belongs to the technical field of construction safety, and provides a subway station safety construction early warning method in order to solve the problems that an existing subway construction safety evaluation method cannot effectively reduce adverse effects generated by subjectivity and cannot be effectively used for practice. The method comprises the following specific steps: collecting scoring results of experts, calculating a credibility distribution function, and taking a mean value of confidence intervals with higher credibility; solving a standard deviation; solving a variable coefficient; and evaluating the construction safety by combining a principal component analysis method and a linear regression least square method. According to the method, a reduction controlmethod adopted due to adverse effects generated by expert scoring is innovatively introduced, the result is more reasonable and accurate, tunnel construction safety can be evaluated more comprehensively, comprehensively and e