National Engineering Handbook: Chapter 26 - Gradation Design of Sand and Gravel Filters
From ASDSO Dam Safety Toolbox
Natural Resources Conservation Service, 2017
Title 210, National Engineering Handbook (NEH),Part 633, Chapter 26 presents criteria for determining the grain-size distribution (GSD) of sand and gravel filters needed to prevent internal erosion or piping of soil in embankments or foundations of hydraulic structures. These criteria are based on results of an extensive laboratory filter study carried out by the Soil Conservation Service (SCS) at the Soil Mechanics Laboratory in Lincoln, NE, from 1980 to 1985 (See210-NEH, Chapter 26, Section 633.2606,"References," for published reports).
Revision ID: 5875
Revision Date: 12/16/2022