A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Settlement of Highway Bridge Approaches and Embankment Foundations. Bluegrass Parkway Bridges Over Chaplin River
The report examines the cause of a differential settlement between the highway approach embankments and bridge decks and abutment tilting at a bridge site located on the Bluegrass Parkway in Kentucky. The site contains several design, construction and maintenance features and soil types that are typical of many bridge sites in Kentucky. The approach embankments are side-hill fills. The approach pavements have settled inches and have been patched on numerous occasions. Each of the four abutments give the appearance of having tilted backward toward the backfill. However, closer examination shows that the abutments have moved laterally toward the bridge ends and are bearing against the steel girder spans. Slope inclinometer readings obtained at each approach embankment over a two-year period shows that the approach fills have moved toward the bridge ends some three inches. The front portion of the western fill failed in 1969, some four years after construction, and exposed several feet of piling. Shear strength of the embankment and foundation soils were established from consolidated isotropic, undrained triaxial tests with pore pressure measurements and consolidated drained, direct shear tests.
Settlement of Highway Bridge Approaches and Embankment Foundations. Bluegrass Parkway Bridges Over Chaplin River
The report examines the cause of a differential settlement between the highway approach embankments and bridge decks and abutment tilting at a bridge site located on the Bluegrass Parkway in Kentucky. The site contains several design, construction and maintenance features and soil types that are typical of many bridge sites in Kentucky. The approach embankments are side-hill fills. The approach pavements have settled inches and have been patched on numerous occasions. Each of the four abutments give the appearance of having tilted backward toward the backfill. However, closer examination shows that the abutments have moved laterally toward the bridge ends and are bearing against the steel girder spans. Slope inclinometer readings obtained at each approach embankment over a two-year period shows that the approach fills have moved toward the bridge ends some three inches. The front portion of the western fill failed in 1969, some four years after construction, and exposed several feet of piling. Shear strength of the embankment and foundation soils were established from consolidated isotropic, undrained triaxial tests with pore pressure measurements and consolidated drained, direct shear tests.
Settlement of Highway Bridge Approaches and Embankment Foundations. Bluegrass Parkway Bridges Over Chaplin River
T. C. Hopkins (author)
1973
45 pages
Report
No indication
English
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