Tailing pond major safety risk quantification method

The invention discloses a tailing pond major safety risk quantification method. The method comprises the following steps: S1, identifying unit risks, and forming a unit security risk and hidden danger violation electronic evidence database; S2, dividing a safety evaluation unit of the inherent risk characteristics of the tailings pond into a dam body unit, a flood drainage unit, an auxiliary facility unit and a surrounding environment unit; S3, carrying out the quantitative measurement of inherent risk indexes of risk points; S4, taking a weighted accumulated value of the place personnel exposure indexes of the inherent risk indexes of the plurality of risk points as a unit inherent risk index H; S5, taking the reciprocal of the unit safety production standardization score percentage as a unit risk frequency index; S6, aggregating the initial high-risk risk management and control frequency of the unit and the inherent risk index of the unit; S7, correcting the initial high-risk safety risk value of the unit by adopting a real risk dynamic correction index. The method aims at improving the intrinsic safety degree and safety management level of the tailings pond enterprises, preventing major and extra-major accidents and reducing accident harm consequences, and provides technical guidance for safety risk management and control of the tailings pond enterprises.