Risk assessment method and device for gas pipeline leakage, equipment and storage medium

The invention provides a risk assessment method and device for gas pipeline leakage, equipment and a storage medium, and the assessment method comprises the steps: carrying out the data processing of an accident case set, and obtaining a first disaster event set and a first disaster-bearing body set; constructing a first propagation network according to a causal relationship among the plurality of first disaster events; dynamically adjusting the first propagation network according to the surrounding condition of the target gas pipeline to obtain a second propagation network; determining the probability of occurrence of the to-be-evaluated event caused by the third disaster event; determining the connectivity of the to-be-evaluated event according to the second propagation network; determining a loss coefficient of the to-be-evaluated event according to a disaster-bearing body associated with the to-be-evaluated event; and determining a risk value of the to-be-evaluated event according to the probability, the