Method for distinguishing position of rockburst risk on deep buried tunnel section

The invention discloses a method for distinguishing the position of a rockburst risk on a deep buried tunnel section. The method comprises the following steps: A, performing numerical simulation analysis according to the shape of a section, engineering geology, conditions of initial ground stress and an excavation method before tunnel excavation, to be specific, a, performing indoor rock mechanics experiments and parametric inversion; b, confirming a three-dimensional initial ground stress field; c, constructing a geometrical model for three-dimensional numerical calculation according to stratigraphic distribution, geologic construction and the size of the tunnel section; d, implementing numerical calculation and analysis of a tunnel excavation process for the geometrical model; e, analyzing the distributed situation of the local energy release rate on the tunnel section; B, monitoring slight shock in a real-time mode in the tunnel excavation process, to be specific, 1, mounting a sensor at the rear part of a tunnel face; 2, collecting slight shock signals in the process of the micro fracture of rock mass to invert the occurrence position of the micro fracture of surrounding rocks; 3, analyzing the projection distribution of micro fracture events on the tunnel section; C, performing comprehensive evaluation on the distinguished occurrence positions of the rockburst risk. Through the adoption of the method, the occurrence of rockburst disasters is reduced or avoided, and the construction safety and the construction progress are ensured.