The invention discloses a large-section tunnel blasting control method and
system based on an energy dissipation mechanism, and the method comprises the steps: constructing a blasting region three-dimensional geomechanical model of rock
mass mechanical parameters, and mapping the
energy demand distribution of each point; based on the model, establishing a
stress wave field propagation and interference prediction model for predicting a space-
time stress field under any
microsecond-level
delay sequence; constructing a multi-target
fitness function, and solving through intelligent optimization algorithms such as a non-dominated sorting
genetic algorithm and the like to obtain an optimal
microsecond-level
delay sequence; the sequence is issued to a plurality of electronic detonators through a high-precision synchronization and safety protocol to execute
detonation; and collecting actual blasting
monitoring data, comparing the actual blasting
monitoring data with a
model prediction result, and carrying out adaptive correction on geologic
model parameters by applying extended Kalman filtering. According to the method, the
stress wave field interference is actively constructed to realize distribution of energy according to needs, multiple blasting targets are considered, and
continuous optimization is performed through feedback, so that the blasting precision, safety and economical efficiency are improved.