تعيين ضرايب ظرفيت باربري خاك به كمك اجزاي محدود مبتني بر مدل لاستيك موهركولمب

Evaluating the Soil Bearing Capacity Coefficients by Means of A Finite Element Program Based on Elasto-Plastic Mohr-Coulomb Behavior

A finite element program based on elastic -plastic model of Mohr-Coulomb criterion was used to evaluate the bearing capacity coefficients of soil under shallow strip flexible footing . The results were compared with othersʹ analytical results and it was found that the present study could offer quite consistent and rather precise values for the hearing capacity coefficients . The effect of different parameters such as E , u, Teta, Landa , type of mesh idealization ,type of elements ,type of load distribution at the footing base have been examined and some new results obtained and discussed. The main conclusion can he summarized as : that the values of hearing capacity coefficients for any particular amount of friction angle should not be expressed as a single number solely dependent on the. friction angle ,but the accurate values must be considered as the values dependent on some other effective parameters , which have been mentioned above .