دانلود رایگان مقاله لاتین ایمنی پایدار سد از سایت الزویر
عنوان فارسی مقاله:
جنبه های ایمنی پایدار سدهای ذخیره و ایمنی زلزله سدهای موجود
عنوان انگلیسی مقاله:
Safety Aspects of Sustainable Storage Dams and Earthquake Safety of Existing Dams
سال انتشار : 2016
برای دانلود رایگان مقاله ایمنی پایدار سد اینجا کلیک نمایید.
مقدمه انگلیسی مقاله:
1. Introduction
The basic element in any sustainable structure or infrastructure project is safety. Therefore, for sustainable storage dams, the emphasis must be on the long-term safety of the dam. Today, dam safety requires an integral safety concept, which comprises the following elements: • Structural safety; • Dam safety monitoring; • Operational safety and maintenance; and • Emergency planning. Long-term safety primarily includes the analysis of all hazards affecting the project; that is, hazards from the natural environment, hazards from the man-made environment, and projectspecific and site-specific hazards. This paper discusses the special features of the seismic safety of dams, as the structural safety of large storage dams today is often governed by the earthquake load case. For large dam projects, a site-specific seismic hazard analysis is usually recommended. These analyses are carried out by seis mologists. It is important that the dam engineer, who is the end user of the results of seismic hazard analyses, clearly specifies what he or she needs, as seismologists are not familiar with the seismic safety concepts used in dam engineering. Today, large dams and the safety-relevant elements used for controlling the reservoir after a strong earthquake (such as the gates of gated spillways and the gates of bottom outlets) must be able to withstand the ground motions of the safety evaluation earthquake (SEE). The SEE ground motion parameters can be determined either by a probabilistic seismic hazard analysis (PSHA) or by a deterministic analysis in which worst-case earthquake scenarios are considered. During the SEE, inelastic deformations may occur in a dam; therefore, the seismic analysis must be carried out in the time domain. In general, seismologists provide response spectra or uniform hazard spectra as the result of their seismic hazard studies, but acceleration time histories are needed for the inelastic analysis of large dams. In addition, earthquakes create multiple seismic hazards for dams such as ground shaking, fault movements, mass movements, and other project-specific and site-specific hazards. Reservoir-triggered seismicity (RTS) may also have to be considered.
برای دانلود رایگان مقاله ایمنی پایدار سد اینجا کلیک نمایید.
کلمات کلیدی:
Safety of Existing Dams: Evaluation and Improvement | The National ... https://www.nap.edu/catalog/.../safety-of-existing-dams-evaluation-and-improvement Download a PDF of "Safety of Existing Dams" by the National Research Council for free. ... $85.00 · Cover Image: Earthquake Engineering for Concrete Dams: ... Seismic Hazard and Seismic Design and Safety Aspects of Large Dam ... link.springer.com/content/pdf/10.1007%2F978-3-319-07118-3_20.pdf importance of periodic reviews of the seismic safety of existing dams is discussed ... of the earthquake safety of large and also small dams (Wieland 2003, 2006). [PDF]Safety Aspects of Sustainable Storage Dams and Earthquake Safety of ... iranarze.ir/wp-content/uploads/2017/02/E3684.pdf by M Wielanda - 2016 - Related articles Sep 19, 2016 - ever, the seismic safety of older dams is unknown, as most were ... the seismic safety of existing dams based on current state-of-the-art ... [PDF]earthquake safety of dams and the importance of ... - poyry.ch.mosaic.fi www.poyry.ch.mosaic.fi/sites/www.poyry.ch.../earthquake_safety_of_dams_0507.pdf by M WIELAND - 2007 - Cited by 1 - Related articles As earthquake ground shaking affects the dam body and appurtenant structures ... Keywords: dam safety, existing dams, concrete dams, embankment dams, ... Safety Aspects of Sustainable Storage Dams and Earthquake Safety of ... https://www.researchgate.net/.../309745535_Safety_Aspects_of_Sustainable_Storage_Da... Official Full-Text Publication: Safety Aspects of Sustainable Storage Dams and Earthquake Safety of Existing Dams on ResearchGate, the professional network ... Safety Aspects of Sustainable Storage Dams and Earthquake ... - HTML engineering.org.cn/EN/10.1016/J.ENG.2016.03.011 by M Wieland - 2016 - Related articles Therefore, we need to reevaluate the seismic safety of existing dams based on current state-of-the-art practices and rehabilitate deficient dams. For large dams ... Searches related to Dams and Earthquake Safety of Existing Dams dam safety and earthquakes ppt earthquake effects on water reservoirs & dams ppt dam ppt presentation dam failure due to earthquake how do dams cause earthquakes dam safety pdf
