Date
03 Jun 1988, 10:30 am - 5:30 pm
Abstract
The Port of Portland, Oregon recently completed the rehabilitation of the downstream portion of Terminal 2. The project included the placement of more than 1 million cy of dredged hydraulic sand fill and the construction of a 1,400-ft-long pile-supported wharf. Up to 60 ft of sand fill was placed over soft, submerged sediments. The silt along the toe of the slope was removed prior to placing the fill. No shear failures or mudwaves were detected during filling. The fill induced settlements of up to 63 in., which agreed well with the predicted maximum settlement of about 60 in. Underwater sand fill slopes were placed at about 2.5H: 1V and subsequently trimmed to 2.25H: 1V. The slope was subsequently densified and steepened to 1.75H: 1V with fragmental quarry rock. After slope construction, 840 vertical, 24-in. octagonal prestressed concrete piles were driven for the wharf.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
2nd Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1988 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
Hardin, D. J.; Byington, M. L.; and Mills, S. V., "The Rehabilitation of Terminal 2 – A Case History" (1988). International Conference on Case Histories in Geotechnical Engineering. 33.
https://scholarsmine.mst.edu/icchge/2icchge/icchge-session5/33
The Rehabilitation of Terminal 2 – A Case History
The Port of Portland, Oregon recently completed the rehabilitation of the downstream portion of Terminal 2. The project included the placement of more than 1 million cy of dredged hydraulic sand fill and the construction of a 1,400-ft-long pile-supported wharf. Up to 60 ft of sand fill was placed over soft, submerged sediments. The silt along the toe of the slope was removed prior to placing the fill. No shear failures or mudwaves were detected during filling. The fill induced settlements of up to 63 in., which agreed well with the predicted maximum settlement of about 60 in. Underwater sand fill slopes were placed at about 2.5H: 1V and subsequently trimmed to 2.25H: 1V. The slope was subsequently densified and steepened to 1.75H: 1V with fragmental quarry rock. After slope construction, 840 vertical, 24-in. octagonal prestressed concrete piles were driven for the wharf.
