00740649

Component

https://doi.org/10.3141/1582-02

http://scholar.google.com...nham&publication_year=1997

The 13-km-long Northumberland Strait Crossing will become the longest continuous marine span bridge in Canada. The marine and navigational spans of the bridge will be supported by 44 precast concrete piers founded on bedrock using ring-shaped footings in a maximum water depth of 35 to 40 m. Bedrock stratigraphy ranges from massive strong sandstone to a variable sequence of thinly bedded weak mudstones and siltstones. Foundation conditions vary significantly from pier to pier and in several cases can vary through the vertical and lateral extent of a particular foundation. In addition to the complex foundation conditions, the large horizontal environmental loadings on each pier must be considered in the geotechnical analyses. Reduced-scale physical model tests of selected marine piers on a centrifuge investigated potential mechanisms of failure and examined how these mechanisms varied with loading and foundation conditions. The results of the experimental program were used in conjunction with analytical results to enhance the fundamental understanding of the geotechnical aspects of foundation design and have led to an improved design methodology.

This paper appears in Transportation Research Record No. 1582, Centrifuge Modeling, Intelligent Geotechnical Systems, and Reliability-Based Design.

English

p. 8-12

1997

Transportation Research Record

0309061571

Figures (6) ; References (9)

Bedrock; Bridge piers; Bridges; Centrifuges; Design methods; Dynamic models; Failure; Footings; Foundation engineering; Foundations; Geotechnical engineering; Loads; Marine engineering; Mudstones; Sandstones; Scale models; Siltstones

Horizontal loads; Model tests

Canada

Canada

Bridges and other structures; Design; Geotechnology; Highways; I43: Rock Mechanics

TRIS, TRB

Sep 10 1997 12:00AM

• ESTIMATION OF VERTICAL CAPACITY OF SINGLE PILES CONSIDERING UNCERTAINTY
• FORMAL OBSERVATIONAL APPROACH TO STAGED LOADING
• INNOVATIVE AND RAPIDLY INSTALLED MECHANICALLY STABILIZED EARTH SYSTEM FOR HIGHWAY EMBANKMENTS: MODEL STUDIES
• MODELING TIME-DEPENDENT BEHAVIOR OF PAVEMENT DRAINAGE USING LINEAR SYSTEM IDENTIFICATION AND NEURAL NETWORK TECHNIQUES
• NEURONET-BASED APPROACH TO MODELING THE DURABILITY OF AGGREGATE IN CONCRETE PAVEMENT CONSTRUCTION
• PREDICTING COLLAPSE POTENTIAL OF SOILS WITH NEURAL NETWORKS
• RELIABILITY EVALUATION OF AASHTO DESIGN EQUATIONS FOR DRILLED SHAFTS
• RELIABILITY-BASED PERFORMANCE MODEL FOR LARGE BRIDGE COMPONENT SYSTEMS
• UNCERTAINTY ANALYSIS OF TUNNEL ROOF STABILITY
• USE OF CENTRIFUGE AND NUMERICAL MODELING IN DESIGN OF PIER 400 AT THE PORT OF LOS ANGELES