APPARATUS AND METHOD FOR LIQUEFACTION REMEDIATION OF LIQUEFIABLE SOILS

摘要

Liquefiable soil (10) is treated for earthquake liquefaction for a building structure or work (11) on or below an overlying ground surface. A plurality of substantially vertical prefabricated drains (12) are positioned at spaced intervals in the liquefiable soil (10) and a reservoir (14) is provided and adapted for draining off water which is expelled from the drains (12) during an earthquake. The drains (12) are generally comprised of an elongated plast ic core material providing channels for channeling water off or therealong and this core is sometimes or selectively surrounded by a filter fabric as required to provide a composite drain.