Scour at Bridge Foundations on Rock (2012) / Chapter Skim
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6Research Approach 2.1 Overview This research project produced results on the following two related aspects of rock scour problems: 1. Geotechnical characteristics of rock masses exposed to flowing water and 2.
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research approach 7 gradient, and discharge. Furthermore, stream power can be integrated over time and expressed as the cumulative stream power at a bridge site for the service life of a bridge.
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8 Scour at Bridge Foundations on rock the proposal included a recommendation that flume tests be eliminated. Flume studies were removed from the research scope and the budget reallocated to other tasks.
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research approach 9 The preliminary methodology focused on screening to identify modes of rock scour so that only relevant modes were evaluated for further quantification. Task 4 -- Interim Report and Updated Phase II Work Plan: The research team prepared and submitted an interim report documenting the information developed in Tasks 1 through 3.
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10 Scour at Bridge Foundations on rock conditions at bridge sites utilizes conventional procedures, but laboratory testing of samples of degradable rock uses a recommended procedure that differs from an ASTM standard. Task 9 -- Submit Final Report: The research team submitted a final report that documents the entire research effort and is published as NCHRP Report 717: Scour at Bridge Foundations on Rock.
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