Risk assessment of coal mine blasting operations based on Monte Carlo method

In order to quantitatively analyze the risk caused by each operational step of coal mine blasting and comprehensively and objectively assess its risk, with the help of Monte Carlo method, this paper establishes a risk assessment model of coal mine blasting operation steps, makes cumulative probability distribution of the behavioral risk consequence value of the operation process, and finally determines the risk size and risk level of each operation step based on the mean result of Monte Carlo simulation and the overall risk result of the operation process, and puts forward the measures for the control of the occurrence of such unsafe behaviors. The results of the study show that the order of risk of the blasting operation process is in the following order: clearing the items into the warehouse, loading, linkage, guarding, safety inspection after detonation, receiving and checking the blasting items, detonation, delivery of blasting items, acceptance of the task of blasting, preoperational safety inspection, pre-detonation safety inspection, sealing the holes.