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Seismic Vulnerability Of The Sacramento San Joaquin Delta Levees
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Book Synopsis Seismic Vulnerability of the Sacramento-San Joaquin Delta Levees by : CALFED Bay-Delta Program
Download or read book Seismic Vulnerability of the Sacramento-San Joaquin Delta Levees written by CALFED Bay-Delta Program and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Seismic Risk Analysis Associated with Levee Failures in the Sacramento - San Joaquin Delta by : California Bay-Delta Authority
Download or read book Preliminary Seismic Risk Analysis Associated with Levee Failures in the Sacramento - San Joaquin Delta written by California Bay-Delta Authority and published by . This book was released on 2005 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calibrated Fragility Functions for Seismic Loading of Sacramento-San Joaquin River Delta Levees by : Yang Yang
Download or read book Calibrated Fragility Functions for Seismic Loading of Sacramento-San Joaquin River Delta Levees written by Yang Yang and published by . This book was released on 2021 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sacramento-San Joaquin River Delta, referred to as the Delta, is of great significance to California in numerous aspects. As one of the largest estuaries in the western United States, the Delta is vital to California's water supply system. Essential lifelines such as the transportation lines and transmission lines lie across the Delta. Across the Delta, there is also an extensive levee system which helps to maintain the islands and waterways. The levees are at the risk of failure, which have brought great attention because the levee failures could cause severe damage to both economy and environment. Although the levees at the Delta have not been shaken by extremely strong earthquake events, the risk is still high considering that there are quite a few active faults near the Delta. Therefore, it is of great importance to get a better understanding of the seismic fragility of levees in the Delta region. Case histories of Japanese levees are first studied to validate the analysis approach. Three instrumented levee sites are selected where instrumental data and field performance data are available, including Nakashimo site, Yamazaki site and Kozuka site. For each site, a two-dimensional (2D) numerical model is constructed and calibrated using OpenSees. The 2D model is shaken by recorded earthquake events, and the response predicted by the finite element model is compared with recorded response. It is found that the predicted surface motions at the levee crest matches well with the recorded surface motion to a great extent with their response spectra compared. The predicted crest settlement for large earthquake events also agrees well with the reported settlement data. But for small earthquake events, it is unclear if the finite element model over-predicts the crest settlement when there is no reported damage report. At the Nakashimo site, a predicted pore water pressure response is also compared with the actual recording, and the comparison indicates that the finite element is able to predict the building-up of the pore water pressure that is consistent with the recorded response, and the predicted rate of dissipation is slightly faster than the measured rate of dissipation. PGV-based fragility curves are then derived from a large number of numerical simulations by following a calibrated approach of developing fragility function. The derived fragility functions are also compared with empirical fragility functions developed by Kwak et al. (2016). A comparison study shows that the median of the log-normal CDFs for the fragility curve obtained from numerical simulations is quite close to the median of the fragility functions proposed by Kwak et al. (2016), while the standard deviation is slightly smaller. This is likely due to the fact that the approach of deriving fragility functions from numerical simulations does not account for all sources of uncertainty that the empirical fragility functions incorporated. With the analysis approach validated, the levees in the Delta, specifically at the McDonald Island are analyzed. A 2D levee model is constructed following a generic levee cross-section profile, and soil properties are determined from available geotechnical data and geophysical measurements. A group of ground motions are selected to be consistent with seismic hazard at McDonald Island. A ground motion intensity measure selection study shows that PGV of the crest motion from a one-dimensional (1D) model without liquefaction is favored in the fragility function derivations. PGV-based fragility curves are also derived from numerical simulations, and it is found that the medians of the log-normal CDFs for PGV-based fragility curves are found to be smaller than what was proposed in Kwak et al. (2016). This indicates that levees at the McDonald Island are more fragile than Japanese levee sites mostly due to a much higher water level and the peat materials beneath the levee fill. The standard deviation of the log-normal CDFs of the fragility curve, after accounting for motion-to-motion variability, within-cross-section variability, and section-to-section varaibility, corresponds quite well with what was proposed by Kwak et al. (2016). In addition, considering that natural soils are usually heterogeneous, the spatial variablity of soil is often characterized and modeled by a spatially correlated random field. Traditional methods like Cholesky decompostion can be computationally expensive for a random field exceeding certain size. An algorithm that combines both Cholesky decomposition and Kriging is proposed to save some computational cost. Example applications are also introduced to validate the algorithm.
Book Synopsis Water supply vulnerabilities in the Sacramento/San Joaquin River system by :
Download or read book Water supply vulnerabilities in the Sacramento/San Joaquin River system written by and published by DIANE Publishing. This book was released on with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Resources. Subcommittee on Water and Power Publisher : ISBN 13 : Total Pages :86 pages Book Rating :4.0/5 ( download)
Book Synopsis Water Supply Vulnerabilities in the Sacramento/San Joaquin River System by : United States. Congress. House. Committee on Resources. Subcommittee on Water and Power
Download or read book Water Supply Vulnerabilities in the Sacramento/San Joaquin River System written by United States. Congress. House. Committee on Resources. Subcommittee on Water and Power and published by . This book was released on 2006 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismicity Hazards in the Sacramento-San Joaquin Delta by : Charles Kearney
Download or read book Seismicity Hazards in the Sacramento-San Joaquin Delta written by Charles Kearney and published by . This book was released on 1980 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Stability Evaluation of the Sacramento-San Joaquin Delta Levees by : California. Department of Water Resources
Download or read book Seismic Stability Evaluation of the Sacramento-San Joaquin Delta Levees written by California. Department of Water Resources and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Site Effects for the Sacramento-San Joaquin Delta by : Tadahiro Kishida
Download or read book Seismic Site Effects for the Sacramento-San Joaquin Delta written by Tadahiro Kishida and published by . This book was released on 2008 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CALFED Bay-Delta Program Programmatic EIS, Long-Term Comprehensive Plan to Restore Ecosystem Health and Improve Water Management, San Francisco Bay - Sacramento/San Joaquin River Bay-Delta D,Dsum; Program Goals and Objectives, Dapp1; No Action Alternative, by :
Download or read book CALFED Bay-Delta Program Programmatic EIS, Long-Term Comprehensive Plan to Restore Ecosystem Health and Improve Water Management, San Francisco Bay - Sacramento/San Joaquin River Bay-Delta D,Dsum; Program Goals and Objectives, Dapp1; No Action Alternative, written by and published by . This book was released on 2000 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparing Futures for the Sacramento, San Joaquin Delta by : Jay Lund
Download or read book Comparing Futures for the Sacramento, San Joaquin Delta written by Jay Lund and published by Univ of California Press. This book was released on 2010-02-02 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ecosystem in freefall, a shrinking water supply for cities and agriculture, an antiquated network of failure-prone levees—this is the Sacramento-San Joaquin Delta, the major hub of California's water system. Written by a team of independent water experts, this analysis of the latest data evaluates proposed solutions to the Delta's myriad problems. Through in-depth economic and ecological analysis, the authors find that the current policy of channeling water exports through the Delta is not sustainable for any interest. Employing a peripheral canal-conveying water around the Delta instead of through it—as part of a larger habitat and water management plan appears to be the best strategy to maintain both a high-quality water supply and at the same time improve conditions for native fish and wildlife. This important assessment includes integrated analysis of long term ecosystem and water management options and demonstrates how issues such as climate change and sustainability will shape the future. Published in cooperation with the Public Policy Institute of California
Author :United States. Congress. House. Committee on Resources. Subcommittee on Water and Power Publisher : ISBN 13 : Total Pages :88 pages Book Rating :4.F/5 ( download)
Book Synopsis Protecting Sacramento/San Joaquin Bay-Delta Water Supplies and Responding to Catastrophic Failures in California Water Deliveries by : United States. Congress. House. Committee on Resources. Subcommittee on Water and Power
Download or read book Protecting Sacramento/San Joaquin Bay-Delta Water Supplies and Responding to Catastrophic Failures in California Water Deliveries written by United States. Congress. House. Committee on Resources. Subcommittee on Water and Power and published by . This book was released on 2006 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of the Causes of Levee Erosion in the Sacramento-San Joaquin Delta, California by : John T. Limerinos
Download or read book Evaluation of the Causes of Levee Erosion in the Sacramento-San Joaquin Delta, California written by John T. Limerinos and published by . This book was released on 1975 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis General Seismic and Geotechnical Risk Assessment, Sacramento-San Joaquin Delta, California by : Dames & Moore
Download or read book General Seismic and Geotechnical Risk Assessment, Sacramento-San Joaquin Delta, California written by Dames & Moore and published by . This book was released on 1991 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis California Levee Risk, Now and in the Future by :
Download or read book California Levee Risk, Now and in the Future written by and published by . This book was released on 2006 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Center for Catastrophic Risk Management (CCRM) and the California Center for Environmental Law and Policy (CCELP) at UC Berkeley and the Lawrence Livermore National Laboratory (LLNL) joined together to cosponsor a workshop to define research requirements to mitigate the hazards facing the Sacramento-San Joaquin Delta Levee system. The Workshop was intended to provide a forum to (1) Report assessments of current vulnerabilities facing the levees, such as structural failure, seismic loading, flooding, terrorism; (2) Consider longer term challenges such as climate change, sea level rise; and (3) Define research requirements to fill gaps in knowledge and reduce uncertainties in hazard assessments.
Book Synopsis North Delta Program, Sacramento/San Joaquin Delta by :
Download or read book North Delta Program, Sacramento/San Joaquin Delta written by and published by . This book was released on 1990 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Discovering and Rediscovering the Fragility of Levees and Land in the Sacramento-San Joaquin Delta, 1870-1879 and Today by : John Thompson
Download or read book Discovering and Rediscovering the Fragility of Levees and Land in the Sacramento-San Joaquin Delta, 1870-1879 and Today written by John Thompson and published by . This book was released on 1982 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Status report by : United States. Army. Corps of Engineers. Sacramento District
Download or read book Status report written by United States. Army. Corps of Engineers. Sacramento District and published by . This book was released on 1978 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: