جستجوی مقالات مرتبط با کلیدواژه "سیستم های ایمنی" در نشریات گروه "عمران"

In this paper, using domestic and foreign experiences in the field of safety, environment and health management system, as well as the characteristics of rail and road development projects, based on PDCA approach (plan, Do, Check, action), A pattern consisting of 16 main clauses is provided for deployment in these plans. For this purpose, In the first phase, after reviewing the background of foreign experiences and Performing initial content analysis, elements of HSE management systems were extracted. Then, in order to determine the localization considerations for the establishment of these systems in Iran, examples of similar work records in the country were studied. In the next phase, by reviewing the documents and using Delphi method and its subdivisions and examples of rail and road development plans, the strengths and weaknesses of the current HSE situation based on the approach of management systems and also the list of features of rail and road development plans were extracted for application in the model. Finally, using the mentioned studies, HSE management system model for rail and road development projects was presented and for model validation, it was deployed in a complex (General Administration of Region 6 of Construction and Development Company) as a pilot and some problems and obstacles to its establishment were identified.

The industry has been faced with the difficulty of Safety level determination for their systems. Safety is one of the most important issues in all environments. In this study, the most important thing is to determine the safety integrity level by the usage of IEC61508 standard in an uncertainty environment. At first, the concept of safety integrity level index is determined in IEC61508 standard and then the uncertainty issues are considered in the input parameters of the model. It should be noted that the uncertainty should be considered in our model because in our real environment, the processes of data gathering has uncertainty, which is clearly explained in our paper. The fault tree analysis is used to determine the fault rate of the system and the dependence of the safety system to each safety integrity level is determined more carefully by implementing the fuzzy approach. This study is implemented on train barking system as a case study and the safety level has been appointed more accuracy.