بررسی اثرات تغییر شاخص های عملکرد ایمنی – اقتصادی بر متوسط روزهای ازدست رفته کاری (مطالعه موردی در پروژه احداث پالایشگاه)*

Background and aims: According to the International Labour Organization, 17% of fatal accidents occur in construction projects and development Workshop. While this number in Iran according to the Labor Department is 46%. In developing Asian countries that are in the process of rapid industrialization occupational accidents is rising. Due to the economic difficulties caused by the sanctions and the poor production in the country, the attention and cost of the HSE course is certainly facing many problems that this is a restriction to the health and safety of their work force in the construction project that mutually accidents and unhealthy forces leading to lower economic growth rate of oil and gas projects and ultimately reduce the rate of economic growth in the country. Hence, the purpose of this research was conducted in an active project in the field of refinery construction, the investigation on effects of development and improvement factors of performance of safety-economy on average working lost days that results of this evaluation leads to corrects for the attribution of related budget of HSE and reduction of cost in an active company in the construction of refineries. Methods: In this study, we analyzed the correlation between economic indices and performance indices compared to the average working lost days and the relationship between these indices in a refinery construction project over 5 years by using the Pearson test and SPSS software. Results: The results of analysis showed that there is a significant positive correlation between the average working lost days within economic indices with the ratio cost of mental events to the total cost of project.(P value <0.001). In addition, there is a significant and negative correlation with the ratio of per capita expenditure of personal protective equipment to the per capita project expenditure (p value <0.05). Conclusion: With analysis of the results was determined that no cost of personal protective canbe cause accident such as disability or deceased and causes disorders workshop process. Furthermore, these events indicators FSR, ISR, IFR increase the ratio cost of spent resources incurred to comply with health and safety work to the total reality cost and the ratio cost of individual events to the total cost of the project and leads to the average number of working lost days. Therefore, perception of relation between safety performance and economic indices in construction projects and equipping employee's to standard personal protective equipment and enough training about observance of principles and rules of HSE can reduce accident and finally decrease average of last working days.