The invention discloses an underground
engineering geological safety dynamic
risk assessment method based on multi-
source data fusion, which relates to the technical field of
risk assessment, and comprises the following steps: collecting multi-source heterogeneous data related to underground
engineering, extracting implicit information, modeling underground
engineering geological
safety risk factors into a risk network, and establishing a risk
network model; calculating the comprehensive importance of the nodes based on a Stacking
integration algorithm, and identifying key risk factors; acquiring characteristic parameters of key risk factors by using spatio-temporal characteristics of implicit information, introducing a random walk mechanism to acquire a dynamic accident prediction chain, and performing learning representation by using a graph
attention network to acquire probability distribution of an accident evolution path; and assessing the
vulnerability of the connection edge in the risk network, establishing a dynamic
risk assessment model based on the node importance and the edge
vulnerability, and obtaining a dynamic risk value corresponding to the accident according to the accident
occurrence probability and the risk mitigation factor. According to the invention, intelligent identification, dynamic evaluation and accurate early warning of risk factors are realized, and the accuracy and real-time performance of
risk identification and evaluation are improved.