关键词: 道路工程, 风险因素, SP/RP调查, 相对差异函数, 高速公路施工

Abstract: In order to improve the safety of highway construction, the causes of accidents were explored based on the theory of safety engineering and combined with the characteristics of highway construction, through a large amount of investigation, qualitative and quantitative analysis of construction accident data. The risk factors affecting the safety of highway construction were preliminarily determined. Through the SP/RP investigation and analysis from six aspects such as technology, material and equipment, personnel, organization and management, environment and logistics, the evaluation index table of risk factors was established. On this basis, the membership function was established by the method of relative difference function, thereby the comprehensive relative membership matrix was constructed. Finally, the risk assessment grade of engineering case was obtained. The research results show that the model based on the relative difference function can quantify the risk assessment indexes which are difficult to quantify, and can adapt to the risk assessment under various conditions. It can effectively improve the accuracy and efficiency of expressway construction evaluation results, provide the basis for taking corresponding safety measures and ensure the construction safety.

Key words: highway engineering, risk factors, SP/RP survey, relative difference function, highway construction