The invention relates to the technical field of electric
digital data processing, in particular to a dangerous rock
instability monitoring and early warning method. The method comprises the following steps: collecting multi-
modal original data related to the dangerous rock in real time, and preprocessing the multi-
modal original data to obtain multi-dimensional core parameters; lithologic partitioning is carried out on the monitoring area based on the borehole acoustic
logging data, and a lithologic partitioning result is obtained; carrying out
data association and fusion by adopting a D-S evidence
theory based on the lithologic partitioning result and the multi-dimensional core parameters, and generating a comprehensive support degree of each catastrophe state; multi-
modal characteristic spectrum mathematical characterization is carried out based on the multi-dimensional core parameters, a precursor mode corresponding to the multi-modal characteristic spectrum subjected to mathematical characterization is identified, and space-
time correlation verification is carried out on an identification result; and according to the comprehensive support degree, the identification result and the time-space correlation
verification result, outputting a graded early warning instruction of dangerous rock
instability. According to the invention, the problems of one-sided consideration, low precision and poor real-time performance of dangerous rock
instability early warning in the prior art can be solved.