Record Display for the EPA National Library Catalog


Main Title Gully Bank Erosion: Mechanics and Simulation by Digital Computer.
Author Taylo, John C. ; Johnso, Howard P. ;
CORP Author Iowa State Water Resources Research Inst., Ames.
Year Published 1973
Report Number ISWRRI-48; DI-14-31-0001-3015 ;DI-14-31-0001-3215; OWRR-A-034-IA; 93202,; A-034-IA(1)
Stock Number PB-227 017
Additional Subjects Soil erosion ; Gullies ; Computerized simulation ; Computer programs ; Ground water ; Iowa ; Digital techniques ; Seepage ; Water table ; Loess ; Shear strength ; Theses ;
Library Call Number Additional Info Location Last
NTIS  PB-227 017 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 177p
The main objective was to developconcepts of the mechanics of gully bank failures, specifically, the effect of groundwater on soil shear strength and the interaction with gravitational forces on the soil. The concepts were expressed as digital computer programs that evalutate gully bank stability. Two groundwater flow systems defined as boundary value problems were solved for the hydraulic potential function by a modified Gram-Schmidt technique. One model can be used to evaluate effects of seepage recharge on groundwater flow into the gully. The second was used to analyze the effects of water table fluctuations in the vicinity of the gully bank, notably cases of rapid drawdown. The solutions apply to gullies with sloping banks which are seepage faces for groundwater. (Modified author abstract)