الفهرس Only 14 pages are availabe for public view
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Abstract
The present study introduces a theoretical method for estimating the maximum load that can be carried by weak soil reinforced with a stone pile. This method is based on establishing the theoretical failure planes assuming that the surrounding soil would fail under a passive earth pressure condition due to the bulging of the stone pile. To verify the results of the present study, a comparison is made with numerical modeling results. Good agreement between both methods is observed. Also, In order to predict the settlement of sand layers stabilized with stone piles, a finite element model has been prepared. The actual stone pile diameter has been established using different techniques. The study showed that the diameter of the stone pile was tapered from a maximum value at the surface to a minimum value at a certain depth. Also the coefficient of earth pressure for both the filling material and surrounding soil were obtained based on the hysteretic model presented By Seed and Duncan (1983) and the wall movement theory presented by Fang et al.(1997), respectively. Using the estimated pile diameter and coefficient of earth pressure in constructing the numerical model showed a good agreement between the predicted settlement and the measured settlement.