American Society of Civil Engineers

In Situ Strength of Rolled and Hydraulic Fill

by G. E. Blight, (Natl. Bldg. Res. Inst., Council for Scientific and Industrial Res., Pretoria, Republic of South Africa)

Journal of the Soil Mechanics and Foundations Division
, Vol. 96, No. 3, May/June 1970, pp. 881-899

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Document type: Journal Paper
Discussion: by Carl-Eric R. Wiesel    (See full record)
Discussion: by Ravikumar Bhaskaran    (See full record)
Closure:(See full record)
Abstract: Rolled and hydraulic fill usually have anisotropic in situ strength characteristics. The strengths on horizontal and vertical planes in an anisotropic soil may be evaluated by vane shear tests with vanes of different shapes. Tests show that the in situ strength of recently compacted fill is anisotropic due to in-place stress conditions, although the soil is intrinsically isotropic. In a 34-yr old embankment, however, the in situ strength is isotropic although the soil is intrinsically anisotropic. The in situ strength of hydraulic fill is anisotropic in such a way as to correspond to K0 consolidation.

ASCE Subject Headings:
Earth fill
Earth-fill dams
Field tests
Fly ash
Shear strength
Shear tests
Soil mechanics