Bridge monitoring and evaluation method for tunnel construction underneath passing high-speed railway bridge

The invention discloses a bridge monitoring and evaluation method for a tunnel construction underneath passing high-speed rail bridge. The method comprises the following steps: S1, data acquisition: acquiring data of influence on the periphery of a tunnel needing to be constructed in a high-speed rail driving process; s2, risk evaluation: carrying out risk evaluation according to the collected data information; s3, tunnel construction is conducted, specifically, a tunnel is mined at the position with the low risk level evaluated through risk evaluation; s4, noise collection, wherein noise generated in the tunnel in the running process of the high-speed rail is collected; s5, risk judgment: processing and analyzing the collected noise information; and S6, evaluation management: performing unified management on the data. The noise in the tunnel in the running process of the high-speed rail can be effectively judged by collecting the noise, whether the noise can influence constructors or not is judged, the influ