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,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1970, Vol. 96, Issue 3, Pg. 881-899

Document Type: Journal Paper

Discussion: Wiesel Carl-Eric R. (See full record)
Discussion: Bhaskaran Ravikumar (See full record)
Closure: (See full record)


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.

Subject Headings: Hydraulic fills | Field tests | Soil strength | Anisotropy | Vanes | Shear strength | Soil tests | Shear tests

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