Anchored Bulkheads: Horizontal and Sloping Anchors

by Boris S. Browzin, (F.ASCE), Office of Nuclear Regulatory Research, United States Nuclear Regulatory Commission, Washington, D.C. 20555,

Serial Information: Journal of the Geotechnical Engineering Division, 1981, Vol. 107, Issue 5, Pg. 629-645

Document Type: Journal Paper

Discussion: Bowles Joseph E. (See full record)
Closure: (See full record)

Abstract: A dimensionless flexibility number (DFN), ρd, which can be used to govern similarity between laboratory plates and prototype for anchored bulkheads, is developed. For free earth conditions, the DFN, as it is shown, must be less than five for loose soils and less than one in dense soils. For designing anchored bulkheads, the DFN, ρd, must be analyzed. If ρd<5 or ρd<1, depending on soil, the bulkhead has essentially a free-earth support. In general, properly designed anchored bulkheads in the majority of cases conform to free-earth support conditions. Bulkheads with sloping anchors in cohesive soils must be designed to the following three conditions involving a single stability number, 4c/γ: (1) to avoid overturning, 4c/ H≥N1; (2) to avoid sinking of the bulkheads caused by sloping abchor, 4c/ H≥N2; and (3) to avoid heave at the dredge line or bottom of the excavation, 4c/ H≥N3.

Subject Headings: Bulkheads | Soil properties | Slope stability | Anchors | Plates | Soil stabilization | Heave | Dredging |

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