EVALUATION METHOD FOR OCCURRENCE AND STRUCTURAL SAFETY OF TUNNEL

摘要

The present invention provides a modified first threshold value input step of receiving a modified first threshold value for a case where precise diagnosis of a tunnel is required; A modified second threshold value input step of receiving a modified second threshold value for a case in which there is a risk of tunnel collapse; A measurement value input step of receiving a deformation measurement value from a deformation detection unit installed inside the tunnel; A deformation evaluation step of evaluating whether the deformation measurement value is due to a long-term deformation or a short-term deformation of the tunnel; And a stability evaluation step of evaluating the stability of the tunnel by comparing the deformation measurement value with the deformation first threshold value and the deformation second order threshold value when the deformation measurement value is due to short-term deformation. By presenting the safety evaluation method of the tunnel structure, the safety of the tunnel structure is quickly judged, the relationship between explosion and fire accidents in the tunnel, the characteristics and scale of the accident are determined, and appropriate countermeasures are made according to the characteristics of the accident. To be able to establish.