Foundations on Strong Sand Overlying Weak Sand

by Adel M. Hanna, (M.ASCE), Assoc. Prof.; Concordia Univ., Dept. of Civ. Engrg., 1455 De Maisonneuve Boulevard West, Montreal, Quebec, Canada H3G 1M8,

Serial Information: Journal of the Geotechnical Engineering Division, 1981, Vol. 107, Issue 7, Pg. 915-927

Document Type: Journal Paper

Abstract: The ultimate bearing capacity of footings on subsoil consisting of a strong sand layer overlying a weak sand deposit was investigated. A theory was developed and then results predicted. These predictions compared well with test data on model strip and circular footings resting on dense sand overlying loose, as well as, compact sand. Design charts are presented for use in practical application. Based on these charts, a procedure to determine the ultimate bearing capacity of a strip and circular footings on a strong sand layer overlying a weak sand deposit is described.

Subject Headings: Sandy soils | Footings | Compacted soils | Load bearing capacity | Layered soils | Model tests | Data processing | Subsoils |

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