登入選單
返回Google圖書搜尋
出版Department of Transportation, Federal Highway Administration, Offices of Research and Development, Environmental Division, 1980
URLhttp://books.google.com.hk/books?id=da3gJ4QJXdEC&hl=&source=gbs_api
註釋Available theories and prediction formulas on scour at bridge waterways are reviewed. Formulas that offer potential for prediction of scour around bridge piers are compared by reducing each formula to a non-dimensional form that includes Froude Number, the ratio of scour depth to pier width, and the ratio of stage to pier width. A field study to gather data on scour and related variables is described. The study is aimed at collecting field data in order to furnish a basis on which to compare scour prediction formulas.