NW-shape Plastic drain board for water draining in weak foundation

摘要

A drain board core for water draining of a soft ground is provided to secure the sufficient draining path and smoothly discharge the pore water onto the ground without the clogged phenomenon of the draining space by keeping the interval between the core and the filter material. A drain board core(3) for water draining of a soft ground is vertically inserted in the soft ground to discharge the moisture in the soft ground. The core is slantly formed with a reinforcing structure(4b) between plural vertically projected projections(4a). The projection is extended to 4~6mm. The soil is not passed through a filter material, and only the moisture passes through the filter material by vertically installing the drain material on the soft ground.