Patent ID: 8360682
Filing Date: 2013-01-29
Classification: E02D

Abstract:
1. A method for treating soft soil, comprising: (a) dividing a site into a plurality of subsections, investigating a profile of the soft soil in each of the plurality of subsections, and estimating expected settlement of the soft soil in each of the plurality of subsections; (b) installing a plurality of water-tight systems around the site to block seepage of ambient groundwater from entering the site; (c) installing a plurality of vacuum pipes in the plurality of subsections in a layered matrix form, connecting the plurality of vacuum pipes to a vacuum system via a plurality of ground horizontal pipes, placing a piezometer in each soil stratum, applying ramming energy thereto, and measuring pore water pressure dissipation of each soil stratum to determine the spacing of the plurality of vacuum pipes; (d) performing a plurality of cycles of inter-moderated compactions in each of the plurality of subsections.