نوع مقاله : مروری
نویسندگان
دانشکده مهندسی عمران - دانشگاه تربیت مدرس
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The occurrence of accidents in large dams, which are considered as national assets, can have catastrophic human, financial, and social consequences. Many large concrete dams, constructed over the past century, were designed and built without adequate understanding of foundation conditions, abutments, and environmental loads, often infected by incorrect assumptions. Additionally, the tensile and shear weakness of plain concrete used in these structures can lead to sudden and brittle large cracks. As a result, the combination of these factors may pose serious threats to the safety of dams. Despite modern scientific advancements, the possibility of errors and uncertainties in the behavior of these structures cannot be ruled out. Therefore, studying past incidents is crucial as a risk management problem background, in large dams evaluation. Through systemic and case-by-case analysis of concrete dams behavior, a deeper understanding of the dam-reservoir-foundation system can be gained, helping to prevent similar future incidents. This study examines the most crucial historical damages sustained by large concrete dams, and analyzes the factors contributing to these incidents. Based on past incidents research, it is evident that most of these accidents are resulted by a combination of different factors, but particularly human errors during the design, construction, and operational phases. Many of these incidents occur in the early years of operation, particularly during the initial reservoir filling, highlighting the need for stringent monitoring standards during this critical period. . . . . . . . .. . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . .. . . . . .. . . . . ... . . . . . . . . .
کلیدواژهها [English]
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