CONNECTED STRUCTURE AND NATURAL DRAINAGE FOR VERTICAL DRAINING PURIFICATIN OF POLLUTED FOUNDATION

摘要

A natural drain board for vertical drainage purification of the polluted ground is provided to maximize the construction efficiency, to increase drainage effect, to reduce a work process, to cut down construction expenses and to apply for the low permeability ground by efficiently filtering a horizontal drain board and a vertical natural drain board to guide polluted water and pollutants contained in the polluted ground to the surface of the earth within the shortest time. The natural drain board for vertical drainage purification of the polluted ground includes a horizontal drain board(10), which is composed of a natural fiber core inward and a vertical natural drain board(113) partially covered with a natural fiber filter. The connecting structure of the natural drain board using natural fibers is completed by installing the horizontal drain board on the upper part of the ground(1), inserting an end of a natural fiber core of a vertical natural drain board member(11) through an insertion hole of the horizontal drain board and a fixing hole of a sleeve, coupling an end of the natural fiber filter which covers up the inserted natural fiber core to be in contact with the outside of the insertion hole of the horizontal drain board and the fixing hole of the sleeve, coupling the horizontal drain board and the sleeve by using a band clamp and forming a vacuum drainage member(4) connected with a vacuum pump on one end of the horizontal drain board. Hereon the vertical natural drainage board member is supplied with a cleaning agent, etc. by an injection pump(6) to easily discharge pollutants or brine.