Location
New York, New York
Date
17 Apr 2004, 10:30am - 12:30pm
Abstract
The proposed Great River Bridge is a 1400-foot long cable-stay structure that will be constructed over the Mississippi River between Desha County, Arkansas and Bolivar County, Mississippi. Including the bridge approach structures and approach embankments, the total structure length is approximately 23,500 feet. Seismic issues have controlled most of the structural design. Design ground motions for three typical subsurface profiles were developed and resulted in near-surface peak accelerations between 0.23 and 0.26g. Level ground liquefaction analyses indicated widespread liquefaction in an abandoned channel of the river and sporadic liquefaction elsewhere. Seismic slope stability and lateral spreading analyses indicated minor displacements at the approach embankments, the Arkansas levee, and the Mississippi riverbank; moderate displacements at the Mississippi levee; and major displacements at a 25-foot high natural terrace and the Arkansas riverbank. Conceptual liquefaction mitigation/soil improvement options were investigated.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Olson, Scott M.; Cooling, Thomas L.; and Hague, Steven T., "Geotechnical Earthquake Engineering for the Great River Bridge" (2004). International Conference on Case Histories in Geotechnical Engineering. 9.
https://scholarsmine.mst.edu/icchge/5icchge/session03/9
Geotechnical Earthquake Engineering for the Great River Bridge
New York, New York
The proposed Great River Bridge is a 1400-foot long cable-stay structure that will be constructed over the Mississippi River between Desha County, Arkansas and Bolivar County, Mississippi. Including the bridge approach structures and approach embankments, the total structure length is approximately 23,500 feet. Seismic issues have controlled most of the structural design. Design ground motions for three typical subsurface profiles were developed and resulted in near-surface peak accelerations between 0.23 and 0.26g. Level ground liquefaction analyses indicated widespread liquefaction in an abandoned channel of the river and sporadic liquefaction elsewhere. Seismic slope stability and lateral spreading analyses indicated minor displacements at the approach embankments, the Arkansas levee, and the Mississippi riverbank; moderate displacements at the Mississippi levee; and major displacements at a 25-foot high natural terrace and the Arkansas riverbank. Conceptual liquefaction mitigation/soil improvement options were investigated.
