ABSTRACT

Previous studies have indicated that work stress has a significant impact on unsafe behaviors. This study explored the impacts of work stress on unsafe behaviors quantitatively using experimental methodology by developing a representative operation task to simulate the actual work in coal mines. The participants’ work stress and unsafe behaviors were measured by the salivary cortisol concentrations and error rates, respectively. The results indicated that the experimental scenarios could effectively induce work stress, and there was a critical point from where unsafe behaviors were considerably minimized. When the stress level was below the critical point, there was a linear relationship between unsafe behaviors and the stress level. When the stress level was above the critical point, there was a quadratic relationship between them. The stress level below and above the critical point indicated challenge stress and hindrance stress, respectively. The results illustrated the feasibility of the experimental design, providing new ideas to eliminate unsafe behaviors induced by work stress among miners.

摘要

先前的研究表明，工作压力对不安全行为有显着影响。本研究通过开发具有代表性的作业任务来模拟煤矿的实际工作，采用实验方法定量探讨了工作压力对不安全行为的影响。参与者的工作压力和不安全行为分别通过唾液皮质醇浓度和错误率来衡量。结果表明，实验场景可以有效地诱导工作压力，并且有一个临界点可以大大减少不安全行为。当压力水平低于临界点时，不安全行为与压力水平呈线性关系。当应力水平高于临界点时，它们之间存在二次关系。低于和高于临界点的应力水平分别表示挑战应力和阻碍应力。结果说明了实验设计的可行性，为消除矿工因工作压力引起的不安全行为提供了新思路。