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Limit Analysis of Strip Footing on Layered Soil and It’s Numerical Validation

JOURNAL:MAZEDAN TRANSACTIONS ON ENGINEERING SYSTEMS DESIGN

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# Authors First Online DOI Downloads Citations
1. Litan Debnath 28 Jun 2021 na 22 0

Abstract

In present study, kinematic approach of limit analysis is used to evaluate the seismic bearing capacity of strip footing. The bearing capacity of strip footings over two-layered soil is investigated. A MATLAB program was used for analyzing the bearing capacity values. Effects of various parameters on two layers of soil have been studied in various situations. Bearing capacity charts are presented by varying cohesion, angle of internal friction and unit weight. The charts can utilizable for any combination of c_1/c_2,?D_f/B_0,??_1/?_2,??_1/?_2. Numerical analyses were done by using PLAXIS 2D. The bearing capacity is compared with numerical values and it is seen that the results obtained are reliable.


Keywords

Limit analysis, Pseudo-static, Layered soil, c-? soil, Velocity hodograph


References
  1. [1]           Bowles (1988) Foundation analysis and design. 4th Ed. McGraw Hill, New York, N.Y.

    [2]           Button (1953) The bearing capacity of footings on a two-layer cohesive subsoil. Proceedings, 3rd International Conference on soil Mechanics and Foundation Engineering, 111: 712-729

    [3]           Carlson, E. D., and Fricano, S. P. (1961) Tank foundation in eastern Venezuela. J. Soil Mech. Found. Div. ASCE, 87, 69-90.

    [4]           Chen and Davidson, H. l. (1973) Bearing capacity determination by limit analysis, J. soil Mech. Found. Div. 99(6), 433-449

    [5]           Chen, W. F., (1970) Limit Analysis and Soil Plasticity, Elsevier-Scientific Publishing Co., Amsterdam, The Netherlands