인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Dams which were primarily used for irrigation and water supply in ancient days makes their presence inevitable through their important roles in other arenas such as flood control, hydropower development, navigation, sediment control and water quality etc., as well. The overall basin development depends largely on various dams constructed at various salient location. To the world population –presently at 8 billion- the demand for water which is growing at 2 to 3% annually will be a concern and dams render a helping hand in that perspective. Concrete dams plays a prominent role. The failures of concrete gravity and arch dams are rare compared to other types. Comprehensive studies on dams attributed the failure modes to overtopping, foundation problems, piping, sliding, structural failure, inadequate spillways, earthquake motions and faults in operations etc. Thermal loading is a concern when there are large variations in temperature. Earthquakes can become a cause of failure of dams depending upon salient characteristics of the event, quality of the rock constituting the foundation strata, material of the dam and the design criteria adopted. The design methodologies have undergone commendable changes from the linear-elastic static analyses to dynamic analyses and the design techniques are capable of incorporating non-linearity and also for simulating the near real scenario. The pseudo-static seismic methods gave way to dynamic seismic simulations using the time histories of the seismic activities already occurred with the help of various mathematical models and refined software. Concrete dams are no exception in failures, if they are not implemented and monitored as per the latest guidelines of national and international standards. Apart from seismicity, there are various factors influencing the behaviour and safety of dams. Concrete arch dams are often constructed to impound very large volume. Adoption of state of the art analyses techniques, design as per latest guidelines, studying the performance and behaviour, safety evaluation and continuous dam health monitoring are essential to avert any potential hazard to these invaluable resources. This paper reviews extensively, the various considerations towards the design, behaviour, performance and the failure scenarios of concrete arch dams.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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