海上埋立におけるセメント混合浚渫土の有効利用事例

抄録

Practical reuses of soft dredging are presented in this paper. Other than disposal of the dredging into reclamation area, the dredging after proper treatment with cement shows fairly good characteristics, particularly suitable for leakproofpurposes.
An empirical and simple correlation among compressive strength, cement content and water content is proposed and the variance property of compressive strength is interpreted on the basis of this correlation. Aiming to provide a recycled geomaterial with high quality and to reduce construction cost, special working ships have been introduced in practical engineering. Improved dredgings have already found applications in various marine construction projects, and two examples in Nagoya Port are presented in detail. Finally, difficulties are mentioned concerning the reuse of dredging from a practical viewpoint.