IMPROVEMENT TO INSTALLATIONS WHICH ARE USED TO LOWER AN AQUIFER IN A POROUS SUBSTRATE BY MEANS OF DRAINAGE, IN ORDER TO ENABLE THE DEPOSITION OF A SOLID SEDIMENTARY MATERIAL

Title:

IMPROVEMENT TO INSTALLATIONS WHICH ARE USED TO LOWER AN AQUIFER IN A POROUS SUBSTRATE BY MEANS OF DRAINAGE, IN ORDER TO ENABLE THE DEPOSITION OF A SOLID SEDIMENTARY MATERIAL

Document Type and Number:

WIPO Patent Application WO2005033419

Kind Code:

A3

Abstract:

The invention relates to an improvement to installations which are used to lower an aquifer in a porous substrate (5), particularly sand, by means of drainage, in order to enable the deposition of a solid sedimentary material which is suspended in a natural body of water (2) that is subject to variations in level and which is associated with the porous substrate (5), by reducing the hydraulic pressure inside said substrate. The installation comprises at least one water collection drain (6, 6') which is buried in the substrate (5). The aforementioned drain (6, 6') is connected to a gathering station (10) by means of a manifold system (12, 12'), said station being equipped with a pumping system (13) which is designed to pump the water collected. The above-mentioned manifold system (12, 12') conveys the water collected by the drain(s) (6, 6') into the gathering station (10). The installation comprises means (20, 20') for automatically determining the level of the natural water body (2), which are connected to means (18 and, optionally, 16, 16') for stopping the pumping system (13) directly or indirectly when the level of the natural water body (2) is above a determined threshold value. In addition, the means used for automatically determining the level of the natural water body (2) preferably take the form of a piezometric-type pressure sensor (20, 20').

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Inventors:

LINDEROTH CARL FREDRIK (CH)

Application Number:

PCT/EP2004/011351

Publication Date:

November 09, 2006

Filing Date:

October 06, 2004

Export Citation:

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Assignee:

FIP (CH)
LINDEROTH CARL FREDRIK (CH)

International Classes:

E02B3/04; E02B11/00

Foreign References:

US5294213A	1994-03-15
EP0108269A2	1984-05-16
GB2281327A	1995-03-01
US4898495A	1990-02-06

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