Patent Number: 6,254,308

Title: Equipment and a method for partially drying a zone of ground containing a liquid

Abstract: Equipment for at least partially drying a zone of ground containing a liquid, the equipment comprising: a substantially air-tight membrane, covering the zone of ground to be dried, an embankment permeous to water and disposed under the membrane, first drain tubes disposed vertically in the zone of ground and in fluid communication with the permeable embankment, second drain tubes connected to a suction pump and laid substantially flat in the embankment. The second drain tubes are in fluid communication with the liquid collected in the first drain tubes, under the membrane, and comprise a series of fluid input holes opened within the embankment for communicating with the fluid contained in said embankment, in order to evacuate the liquid collected from the ground and obtain an air depression under the membrane. Possibly, the equipment is also provided with third drain tubes extending substantially horizontally in the embankment, under the membrane, and comprising a series of fluid input holes for an input of fluid therein, the third drain tubes being disposed at a level above the level of the second drain tubes, in a zone of the embankment which is unsaturated with liquid, and being connected to an air suction means.

Inventors: Cognon; Jean-Marie (Sceaux, FR)

Assignee: Menard Soltraitement

International Classification: E02D 3/00 (20060101); E02D 3/10 (20060101); F02B 011/00 ()

Expiration Date: 07/03/2018