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为保证建筑施工企业安全投资决策的合理性,采用问卷调查的方式获取国内86个工程项目安全投资和安全绩效状况,基于粗糙集理论(RS)提取出9个影响建筑施工企业安全投资的关键因素,利用支持向量机(SVM)原理构建建筑施工企业安全投资-绩效决策模型,并进行样本数据测试和实证检验。分析结果表明,安全培训、安全宣传等关键投资要素对安全绩效有显著影响;拟合程度较高,决策模型的实用性较好。建筑施工企业应重视安全预防投资,加强事中监督,同时建立必要的风险转移机制,以提高安全绩效。
In order to ensure the rationality of safety investment decision of construction enterprises, the safety investment and safety performance of 86 construction projects in China were obtained by means of questionnaire survey. Based on rough set theory (RS), nine key factors affecting the safety investment of construction enterprises , Using the principle of support vector machine (SVM) to construct the safety investment-performance decision-making model of construction enterprises, and carrying out sample data test and empirical test. The results of the analysis show that the key investment elements such as safety training and safety promotion have a significant impact on the safety performance. The fitting degree is high, and the practicability of the decision-making model is better. Building construction enterprises should pay attention to safety prevention investment, strengthen supervision in the matter and establish necessary risk transfer mechanism to improve safety performance.