000011495 001__ 11495
000011495 005__ 20141205155916.0
000011495 04107 $$aeng
000011495 046__ $$k2008-10-12
000011495 100__ $$aSadden, Brian
000011495 24500 $$aAlternative Studies of Water Transmission Pipelines Crossing the Hayward Fault

000011495 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000011495 260__ $$b
000011495 506__ $$arestricted
000011495 520__ $$2eng$$aThe Bay Division Pipelines (BDPLs) Nos. 3 and 4 are vital components of the San Francisco Public Utilities Commission’s (SFPUC’s) transmission system that delivers water from Hetch Hetchy Reservoir in Yosemite National Park to the San Francisco Bay Area. The pipelines cross three traces of the Hayward Fault, which is capable of producing a magnitude 7.25 earthquake and over 6 feet of horizontal fault offset. The alignment of the SFPUC pipeline right-of-way is such that offset of the fault will produce compression in the 78-inch and 96inch-diameter pipelines. A large earthquake on the Hayward Fault would almost certainly rupture both BDPLs 3 and 4 causing localized flooding and loss of water supply to the San Francisco Bay Area. Adding to the complexity of the project, the fault crossing is located in a highly congested and trafficked area at the intersection of the Interstate 680 freeway and Mission Boulevard in Fremont, California. This unusual situation of large-diameter pipelines constrained by local right-of-way restrictions to a compression fault crossing requires a unique solution to mitigate the danger. Nine alternatives were developed to address the situation considering cost, constructability, seismic reliability, operations and maintenance, environmental and governmental permitting, and community impact. The goal of the alternative studies is to yield a solution that provides a high level of survivability and operability after a major earthquake and constructability within a confined construction area, while minimizing disruption to the community, traffic, and water delivery.

000011495 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000011495 653__ $$aPipeline, fault crossing, California, seismic design

000011495 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000011495 720__ $$aSadden, Brian$$iWong, Stephanie A$$iCheng, Luke
000011495 8560_ $$ffischerc@itam.cas.cz
000011495 8564_ $$s225520$$uhttps://invenio.itam.cas.cz/record/11495/files/06-0008.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 06-0008.
000011495 962__ $$r9324
000011495 980__ $$aPAPER