ESTIMATION OF STRENGTH OF SILICATEGROUTED SAND

概要

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The properties of grouted sand strength were examined by changing the pure grout strength and the density and particle size of sand over a wide range. It was found that there are limits within which the grouted sand strength is proportional to the density of the sand. There are also limits within which grouted sand strength is not proportional to the density of sand. This report examines the relationship between grouted sand and pure grout strength over a wide range of sand conditions. The relationship between grouted sand strength and pure grout strength is expressed by an exponential equation which is then examined by the Mohr-Coulomb failure criterion and the two-phase composite system. As a result, it is possible to estimate the unconfined compressive strength of the grouted sand by examining the physical properties of the sand and the strength of the pure grout being used. Regardless of the kind of sand used, the accuracy of strength obtained by estimation has a correlation coefficient of greater than 90%.
社団法人地盤工学会の論文
1991-09-15