間隙水圧測定に基づいた粒子径が及ぼす覆砂内での水圧変動の挙動特性

概要

論文の詳細を見る
Sand capping was often used in closed water area to restore water environment. To evaluate long-term performance of capping layer, water flow in capping layer was important, because water flow in the layer brought oxygen into the layer and reduced consolidation of settling organic sediments, and finally effected to habitat of marine creatures. Water flow in the layer was affected by momentary pressure variation in water and transmitted to the layer, thus resulted grain size of the layer was enormously influential. In this paper, momentary pressure variation in water and in pore of the layer, which made of sand (grain size 1-5mm), granulated fly ash (3-40mm) and mixed with both materials, were measured. In consequence, it was suggested that in the small size of grain as sand long-term wave caused delay in transmit and short wave degraded through transmitting into the layer.
土木学会の論文