| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquefaction countermeasure structure simply constructed to easily dissipate excess pore water pressure generated under a discoidal soil improvement body, thus suppressing damage to a ground due to its liquefaction.SOLUTION: A liquefaction countermeasure structure 10 includes a plurality of drain paths 22 formed in a discoidal soil improvement body 20 which is constructed in a ground 2 as a target for liquefaction countermeasures to support a construction 1, extending from its bottom face to its upper face, and a drain layer 24 formed on the upper face of the soil improvement body 20 to drain water flowing up through the drain paths 22, the plurality of drain paths 22 being filled with drain materials and provided with filter materials for holding back sand. |
