| 摘要 |
PROBLEM TO BE SOLVED: To provide a dehydration method for preventing liquefaction recurrence to be ground consolidation enhancement by dehydration, for a muddy phenomenon prevention measure of performing solid-liquid separation by utilizing lower layer ground liquefaction pressure by a long-period earthquake vibration and discharging water to a prescribed part on the ground.SOLUTION: A required number of water-permeable cylinders 1 comprising a filter medium such as a resin fiber are embedded in regional lower layer ground indicated by a hazard map. For the dehydration method for preventing a muddy phenomenon, the water-permeable cylinders 1 for performing solid-liquid separation by utilizing the liquefaction pressure by the long-period earthquake vibration are embedded, and a pipeline 15 for leading separated water onto the ground through the water-permeable cylinders 1 is provided with an automatic pressure valve 13 to be opened sensing the liquefaction pressure. |
