硐室施工人员风险感知的心理距离模型

Study on psychological distance model of risk perception of cavern construction workers

为厘清地下硐室各风险因素对施工人员风险感知水平的作用机制,首先,结合文献和实地调研考察,确定地下硐室施工人员风险感知各影响因素;然后,运用心理距离理论将影响因素归纳为3个距离维度,构建心理距离结构方程模型(SEM),计算各心理距离对风险感知水平影响的路径系数;最后,利用向量模型计算各心理距离对风险感知水平的敏感系数,验证SEM计算的准确性。结果表明:收入距离维度对工人风险感知水平的影响最大。

In order to clarify the mechanism of risk factors in underground caverns affecting the risk perception level of construction workers,the theory of psychological distance was applied to construct the SEM model and the vector model. Firstly,combined with literature review and field investigation,the factors influencing the risk perception of underground cavern workers were determined. Then risk perception factors were summarized into three distance dimensions by using psychological distance theory, the SEM of psychological distance was constructed and the path coefficients of the impact of psychological distance on risk perception level were calculated. Finally,the sensitivity coefficient of each psychological distance to risk perception level was calculated by using vector model,and the accuracy of SEM calculation was verified. The results show that the income distance dimension has the greatest impact on the level of worker's risk perception.