Bearing Capacity of Footings on Anisotropic Soils

by A. Siva Reddy, (A.M.ASCE), Assoc. Prof.; Dept. of Civ. and Hydr. Engrg., Indian Inst. of Sci., Bangalore, India,
Ramanathan J. Srinivasan, Sr. Res. Asst.; Dept. of Civ. and Hydr. Engrg., Indian Inst. of Sci., Bangalore, India,


Serial Information: Journal of the Soil Mechanics and Foundations Division, 1970, Vol. 96, Issue 6, Pg. 1967-1986


Document Type: Journal Paper

Discussion: Obin Jean-Pierre (See full record)
Discussion: Obin Jean-Pierre (See full record)

Abstract: Using the method of characteristics the ultimate bearing capacity of rough strip footings on soils in which cohesion is anisotropic, and increases linearly with depth, is studied. The values of bearing capacity factor Nc are presented for different rates of increase of cohesion, Bc, with depth, and for different values of coefficient of anisotropy K. It is found that for the range of Bc values studied when K changes from 1.0 to 2.0 the reduction in the value of Nc is about 30% to 40%, whereas when K changes from 1.0 to 0.8 the increase in the Nc value is 15% to 20%. It is also found that in the case of anisotropic and nonhomogeneous soils, the rupture surfaces extend to smaller distances in both horizontal and vertical directions when compared to those in the case of isotropic and homogeneous soils.

Subject Headings: Anisotropy | Load bearing capacity | Footings | Case studies | Homogeneity | Cohesive soils | Soil properties | Linear functions

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