Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tractive Force Methods for Earthen Channels
The tractive force method came about due to more firmly establishing design criteria for earthen channels on first principles rather than on survey results used in establishing the permissible velocity method. Tractive force methods represent what one can call Earthen Channel design II. This chapter helps the readers to design grassed waterways using tractive force methods and discusses when to use Tractive Force and when the permissible velocity method is adequate. R.H. French provided a systematic design procedure. The author incorporated French's procedure into an earthen (or riprap‐lined) channel tractive force design spreadsheet in the download materials. In situations where the cover is precisely maintained, the Tractive Force method could be justified. The parabolic approximation occurs in nature. The chapter explores the reasons for parabolic type occurrences. The hydraulic elements of the area and the wetted perimeter of the parabola are derived. The chapter concludes the uniform flow discussion with a section on channel costing.
Tractive Force Methods for Earthen Channels
The tractive force method came about due to more firmly establishing design criteria for earthen channels on first principles rather than on survey results used in establishing the permissible velocity method. Tractive force methods represent what one can call Earthen Channel design II. This chapter helps the readers to design grassed waterways using tractive force methods and discusses when to use Tractive Force and when the permissible velocity method is adequate. R.H. French provided a systematic design procedure. The author incorporated French's procedure into an earthen (or riprap‐lined) channel tractive force design spreadsheet in the download materials. In situations where the cover is precisely maintained, the Tractive Force method could be justified. The parabolic approximation occurs in nature. The chapter explores the reasons for parabolic type occurrences. The hydraulic elements of the area and the wetted perimeter of the parabola are derived. The chapter concludes the uniform flow discussion with a section on channel costing.
Tractive Force Methods for Earthen Channels
Tollner, Ernest W. (Autor:in)
Open Channel Design ; 71-97
17.09.2021
27 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Tractive-Force Distribution in Open Channels
| ASCE | 2021
Tractive-force distribution in open channels
| Engineering Index Backfile | 1966
Distribution of Tractive Force in Open Channels
| ASCE | 2021