Abstract
Leaked pollutant from a waste disposal site at sea might cause a wider environmental problem of sea pollution. Recently, the requirements on such waste disposal are increased. However, the technical manual for the construction of them still has problems.Last year, authors showed that the new structure of caisson type seawall, which has a solid reticulation formation resin and seepage control materials filing the gaps in the rubble, has a high sealing performance.In this study, we pointed to the boundaries between rubble mound and caisson and between rubble mound and ground, and joints between caissons. Furthermore we noticed the sealing performance of them under seismic behavior.Based on test results and advection dispersion analysis, it was predicted that its sealing performance would keep a high performance under seismic condition and be sufficient even if it was added 100 years later.
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