Application of fault tree analysis to establish safety checklist for groundwater inrush in underground coalmines

This paper presents the application of the fault tree analysis to assess the risk of groundwater inrush in coalmines.Computer programming was used to calculate the minimal cut set and structure importance.The results of computer programming for a coalmine illustrate that the number of minimal cut set is 116.And the structure importance of every basic event was also calculated.A safety assessment index system and a special safety checklist were established based on these results.The result of safety assessment is low risk.And amendments were proposed.