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Author: Natalia Romero
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This thesis describes seismic hazards, including fault rupture, liquefaction, landslides, and site amplification, using Los Angeles as a case study. Water supply simulation results are presented for a 7.8 MW earthquake on the San Andreas Fault. Severe water losses are shown after 24 hrs, with nearly 2,700 locations of pipeline damage and a 66% decrease in normal water service. The water supply system was modeled with and without reservoirs that have been removed from service to meet water quality standards. The results show that opening the disconnected reservoirs immediately after a serious earthquake is an effective strategy for emergency response.
Author: Natalia Romero
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
This thesis describes seismic hazards, including fault rupture, liquefaction, landslides, and site amplification, using Los Angeles as a case study. Water supply simulation results are presented for a 7.8 MW earthquake on the San Andreas Fault. Severe water losses are shown after 24 hrs, with nearly 2,700 locations of pipeline damage and a 66% decrease in normal water service. The water supply system was modeled with and without reservoirs that have been removed from service to meet water quality standards. The results show that opening the disconnected reservoirs immediately after a serious earthquake is an effective strategy for emergency response.
Author: Yu Wang
Publisher:
ISBN:
Category : Water quality management
Languages : en
Pages : 414
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Book Description
Author: Agam Tomar
Publisher:
ISBN:
Category :
Languages : en
Pages : 146
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Book Description
Water distribution systems are vital to the well-being of communities because they contribute to the functionality of all other infrastructure and lifeline systems. Earthquakes and other natural hazards can cause damage to the components of a water distribution system, causing far-reaching socioeconomic consequences. This research begins with the development of an end-to-end simulation framework to model post-earthquake functional loss and restoration of a water system, which encompasses seismic hazard characterization, component damage assessment, hydraulic performance evaluation, and network restoration modeling. The modeling framework is validated using data from the 2014 South Napa Earthquake and extended to a hypothetical scenario. The end-to-end simulation framework is then extended to consider stochastic event set assessments of the water network using the UCERF2 (Uniform California Earthquake Rupture Forecast, Version 2) earthquake rupture forecast model. Given that the end-to-end performance evaluation of distributed infrastructure for a large set of events is computationally expensive, a framework that uses Active learning to select a subset of ground motion maps and associated occurrence rates that reasonably estimates the water network risk is also developed. To deal with the temporal complexities that are embedded in the post-earthquake restoration process, a dynamic updating methodology is developed to reduce uncertainties in the outcomes of post-event recovery forecasts using Bayesian Inferencing, by exploiting real-time data. The specific example of updating predictions (post-earthquake functional recovery forecasts including total recovery time and complete recovery trajectory) is presented and validated on a real pipe network (Napa water system) and event (2014 earthquake and recovery). Ultimately, the frameworks and models developed as part of this work can inform risk-based decision making and resilience planning of water networks and other lifeline systems.
Author: Amanda Lynn Bonneau
Publisher:
ISBN:
Category : Emergency water supply
Languages : en
Pages : 260
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Book Description
Author: John M. Eidinger
Publisher: ASCE Publications
ISBN: 9780784474693
Category : Technology & Engineering
Languages : en
Pages : 212
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Book Description
Prepared by the Technical Council on Lifeline Earthquake Engineering of ASCE This TCLEE Monograph provides guidelines for the seismic evaluation and upgrade of water transmission facilities, including aqueducts, tunnels, canals, buried pipelines, elevated pipelines and their appurtenances. Topics covered include the performance of these facilities in past earthquakes; geotechnical issues; performance criteria; risk analysis; analysis methods; and a series of case studies. The guidelines can also be used for the design of new water transmission facilities. The case studies cover seismic designs and retrofits for the Mokelumne Aqueduct, the Contra Costa Canal, the Borel Canal, buried pipes at fault crossings, and auxiliary water fire fighting systems. The case studies also examine post-earthquake operations, financial issues, and the benefits of seismic retrofits.
Author: Craig E. Taylor
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 192
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Book Description
Topics in this volume include calculating seismic risk, replacement cost estimation procedures, methods for developing component loss algorithms and applications of loss algorithm methods to demonstration water system components.
Author: Matjaž Dolšek
Publisher: Springer Science & Business Media
ISBN: 9400714483
Category : Science
Languages : en
Pages : 341
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Book Description
Current knowledge and state-of-the-art developments in topics related to the seismic performance and risk assessment of different types of structures and building stock are addressed in the book, with emphasis on probabilistic methods. The first part addresses the global risk components, as well as seismic hazard and ground motions, whereas the second, more extensive part presents recent advances in methods and tools for the seismic performance and risk assessment of structures. The book contains examples of steel, masonry and reinforced concrete buildings, as well as some examples related to various types of infrastructure, such as bridges and concrete gravity dams. The book's aim is to make a contribution towards the mitigation of seismic risk by presenting advanced methods and tools which can be used to achieve well-informed decision-making, this being the key element for the future protection of the built environment against earthquakes. Audience: This book will be of interest to researchers, postgraduate students and practicing engineers working in the fields of natural hazards, earthquake, structural and geotechnical engineering, and computational mechanics, but it may also be attractive to other experts working in the fields related to social and economic impact of earthquakes.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The purpose of this report is to present the results of a site-wide system fragility assessment. This assessment focuses solely on the performance of the water distribution systems that supply Chemical and Metallurgy Research (CMR), Weapons Engineering and Tritium Facility (WETF), Radioactive Liquid Waste Treatment Facility (RLWTF), Waste Characterization, Reduction, Repackaging Facility (WCRRF), and Transuranic Waste Inspectable Storage Project (TWISP). The analysis methodology is based on the American Lifelines Alliance seismic fragility formulations for water systems. System fragilities are convolved with the 1995 LANL seismic hazards to develop failure frequencies. Acceptance is determined by comparing the failure frequencies to the DOE-1020 Performance Goals. This study concludes that: (1) If a significant number of existing isolation valves in the water distribution system are closed to dedicate the entire water system to fighting fires in specific nuclear facilities; (2) Then, the water distribution systems for WETF, RLWTF, WCRRF, and TWISP meet the PC-2 performance goal and the water distribution system for CMR is capable of surviving a 0.06g earthquake. A parametric study of the WETF water distribution system demonstrates that: (1) If a significant number of valves in the water distribution system are NOT closed to dedicate the entire water system to fighting fires in WETF; (2) Then, the water distribution system for WETF has an annual probability of failure on the order of 4 x 10−3 that does not meet the PC-2 performance goal. Similar conclusions are expected for CMR, RLWTF, WCRRF, and TWISP. It is important to note that some of the assumptions made in deriving the results should be verified by personnel in the safety-basis office and may need to be incorporated in technical surveillance requirements in the existing authorization basis documentation if credit for availability of fire protection water is taken at the PC-2 level earthquake levels. Assumptions are presented in Section 2.2 of this report.
Author: R. Ayothiraman
Publisher: I. K. International Pvt Ltd
ISBN: 818986677X
Category : Science
Languages : en
Pages : 574
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Book Description
discusses the new developments in the field of earthquake engineering and allied areas, " gives information about present state-of-the-art and current practices adopted globally in prediction and mitigation of earthquake hazards, " explores novel and innovative methods for prediction and mitigation of hazards considering the future earthquakes for building sustainable/ safe infrastructures and ensuring safety of community.
Author: Christopher Rojahn
Publisher:
ISBN:
Category : Earthquake hazard analysis
Languages : en
Pages : 170
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Book Description
