Quantitative Risk Assessment of Slope of Neighboring Highway Transmission Tower

    Introduction   In order to quantitatively calculate the risk of transmission line tower slope, reasonable measures are taken to manage the tower slope to ensure the safe and stable operation of overhead transmission lines.

    Method   Taking a tower slope in Shenzhen as the research object, according to the framework system of slope risk assessment, the direct economic losses caused by slope deformation and failure can be quantitatively calculated through slope failure probability analysis, risk analysis and hazard consequence analysis, combined with the surrounding environmental conditions of the slope.

    Result   Through quantitative risk assessment of slope, even if the safety factor satisfies the criterion, the slope still has a failure probability of 4.75%, and the risk assessment value of property loss is 174 000 yuan.

    Conclusion   This paper presents and exemplifies a set of quantitative risk assessment methods for transmission tower. The assessment results can provide reference value for the operation and maintenance department of transmission tower slope.