Unconfined Compressive Strength of Soil Foundations Improved by Shallow Mixing Method Applied for Small Buildings

概要

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For the purpose of evaluating the bearing capacity of the foundations for small scale buildings, studies were conducted for the unconfined compressive strength of the ground improved by the shallow mixing method. First, a strength comparison was made of cores sampled from five locations around the Kanto region with laboratory manufactured test pieces. The results did not show a large difference in the coefficient of variation between the two test groups, but showed the strength of the laboratory manufactured test pieces being considerably stronger than that of the site cores, with the ratio being in the range of 0.53 to 2.22. In addition, from a comparative study of the unconfined compressive strength of large test pieces and that of broken test pieces, it was possible to find the uncofined compressive strength to be used for designs by subtracting a standard deviation 0.71 multiplier from the average site core unconfined compressive strength.
東海大学の論文