Evaluation of Bridge-Scour Research: Abutment and Contraction Scour Processes and Prediction (2011) / Chapter Skim
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75 CHAPTER 9. CONCLUSIONS 9.1 INTRODUCTION This report comprises an extensive, broad review of scour at bridge abutments, conducted with the intent of providing recommendations for updating AASHTO manuals Policy for Design of Highway Drainage Facilities and Recommended Procedures for Design of Highway Drainage Facilities, so that these manuals present the best available guidelines for abutment scour estimation and countermeasure design, and indicate clear direction as to further research.
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From page 78... ...
76 9.2 CONCLUSIONS The review and evaluation leads to the following main conclusions regarding the six objectives stated in Section 1.3: 1. Abutment-scour literature published since 1990 documents substantial advances in understanding abutment-scour processes.
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From page 79... ...
77 ii. Scour of boundary materials whose erosion characteristics are not adequately understood (some soils, rock)
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