高炉水砕スラグの人工地盤への適用(<特集>人工地盤材料の維持管理)

概要

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Granulated Blast-furnace Slag is made by rapid cooling with high-pressure water, and looks like sand in color and in shape. As it has characteristics of lightweight, large internal frictional angle, and hydraulicity, it has been used as a material of artificial grounds such as backfill, reclaimed ground, subgrade, or embankment. For the construction of port and harbour facilities, guidelines and manuals on the application of the slag have been issued. In the "Technical Standards and Commentaries for Port and Harbour Facilities (2007)", active utilization of the slag has been described as the recyclable resource material and an example of ground improvement method by the replacement work. This paper presents application examples of backfilling of the quay and filling method for underground cavities caused by ground subsidence.
2012-11-01