Development of New Design Guidelines for Protection Against Erosion at Bridge Abutments - Phase IV
| 项目名称： | Development of New Design Guidelines for Protection Against Erosion at Bridge Abutments - Phase IV |
| 摘要： | Reliable and safe transportation infrastructure design for flooding events is of great economical importance for state and federal agencies in charge of maintaining our roads operational. The US Midwest has experienced increasingly catastrophic flood events. Severe erosion problems were reported at many bridge sites. Two of the most encountered types of abutments used at such bridges are spill-through and wing-wall abutments. Placing riprap stone around the base of a bridge abutment, where the highest stresses generally occur, and over its erodible faces is one of the most common way to protect abutments against erosion. The present research proposes the use of a numerically-based approach to develop improved design formulas for minimum riprap stone size for protection against erosion of spill-through abutments (open channel flow conditions) and wing-wall abutments (pressurized flow due to bridge deck overtopping). |
| 状态： | Active |
| 资金： | $149,638 |
| 资助组织： | Office of the Assistant Secretary for Research and Technology |
| 项目负责人： | Stearns, Amy |
| 执行机构： | University of Iowa, Mechanical and Industrial Engineering |
| 开始时间： | 20200901 |
| 预计完成日期： | 20210831 |
| 主题领域： | Bridges and other structures；Design；Highways；Hydraulics and Hydrology |
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