Method and device for providing a piping protection system in a dike body

Abstract

The invention relates to a method for making a barrier screen in a dike body for preventing transport of soil particles, said barrier screen being positioned substantially standing and extending in a longitudinal direction of said dike body, wherein in said method said barrier screen is obtained by mechanically mixing soil that is already present in said dike body with a binder. The method is characterized in that it comprises the step of displacing the chain cutter along the trajectory of the barrier screen to be made through the dike body and mixing the soil present and the binder as well as inserting a cloth into the mixed soil.

1 . A method for making a barrier screen in a dike body for preventing transport of soil particles, said barrier screen being positioned substantially standing and extending in a longitudinal direction of said dike body, wherein in said method said barrier screen is obtained by mechanically mixing soil that is already present in said dike body with a binder, characterized in that the method comprises the step of displacing the chain cutter along the trajectory of the barrier screen to be made through the dike body and mixing the soil present and the binder as well as inserting a cloth into the mixed soil. 
     
     
         2 . A method according to  claim 1 , wherein said cloth is provided at substantially the height of the mixed soil. 
     
     
         3 . A method according to  claim 1 , wherein said cloth is positioned behind the chain cutter into the mixed soil. 
     
     
         4 . A method according to  claim 1 , wherein said cloth has a porosity with a permeability for at least partially passing water. 
     
     
         5 . A method according to  claim 1 , wherein the chain cutter is displaced substantially horizontally through said dike body ( 4 ) for making a longitudinal barrier screen in said dike body. 
     
     
         6 . A method according to  claim 3 , wherein said cloth is positioned in the middle part of said mixed soil. 
     
     
         7 . A device for making a barrier screen ( 11 ) in a dike body ( 1 ), provided with a cutter ( 27 ) comprising soil cutting and milling chisels ( 26 ), a binder container ( 16 ), and a feeding supply ( 21 ) for, upon said cutting method, feeding binder ( 15 ) from said binder container ( 16 ) to the chisels ( 24 ,  26 ), wherein said cutter ( 27 ) comprises a chain cutter ( 27 ) for cutting and milling soil material and mixing same with a binder ( 15 ), said device further being embodied for inserting a cloth in said mixture of cut and milled soil material and binder. 
     
     
         8 . A device according to  claim 7 , further comprising a soil transporting device ( 35 ) for inserting any soil material that is spilled on the dike's surface by the chain cutter into the dike body ( 27 ), said spilled material optionally being mixed with binder ( 15 ). 
     
     
         9 . A device according to  claim 8 , said soil transporting device ( 35 ) being an auger ( 35 ). 
     
     
         10 . A device according to  claim 7 , said device comprising a cylinder ( 29 ) with a cloth material ( 30 ), said cylinder ( 29 ) extending until the depth of said chain cutter ( 27 ) and being embodied for being unrolled when displacing the chain cutter ( 27 ). 
     
     
         11 . A device according to  claim 7 , said device comprising a container with cloth, said container being positioned above ground level and being embodied for depositing said cloth to the mixed soil when displacing the chain cutter ( 27 ). 
     
     
         12 . A device according to  claim 10 , said device comprising a holder for the cylinder ( 29 ) with cloth ( 30 ), and a changing device for inserting into the holder a new cylinder ( 29 ) with a cloth when another cylinder ( 29 ) has been unrolled substantially completely, wherein both cloths are provided with mutually cooperating male-female connections, said device comprising a coupling system for inserting said male and female connections for mutually connecting said cloths.