Abstract
The present study was performed to confirm the applicability of granular coal ashes to the reclamation material with proper resistance against liquefaction during earthquake. A series of cyclic triaxial tests was carried out on specimen of granulated coal ashes to evaluate the liquefaction potential under various confinig stresses and relative denslties. Granulated coal ash was subjected to cyclic triaxial tests, and the results were compared with those of natural sand, to examine the cyclic shear properties of the material. The results revealed that the cyclic shear strength curve of granulated coat ash was gentle under confined pressure, but it was still higher than the cyclic shear strength curve of natural sand. It was also observed that granulated coal ash undergoes remarkable particle crushing. In addition, it is therefore assumed that particle crushing that occurs at the time of consolidation contributes to the stabilization of the structure to deliver high cyclic shear strength, while particle crushing that occurs at the time of cyclic shear contributes to the generation of axial strain to reduce cyclic shear strength.
