Flood barrier and a method for forming a flood barrier

Details Flood barrier and a method for forming a flood barrier Flood barrier and a method for forming a flood barrier

1995-07-27

1997-03-11

Reese, Randolph A.

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

405109, E02B 706

Patent

active

056094388

ABSTRACT:
A trench is excavated from the top surface of an earthen dike, all the way down into the foundation below the base of the dike. Dry powder, partially hydrolyzed polyacrylamide (PHPA) is mixed with fresh water and soda ash in proportions of 20 lbs PHPA, to 4 lbs of soda ash, to 68 barrels of fresh water (2856 gallons) to form a slurry having a funnel viscosity of at least 45 sec/quart. As the trench is being excavated, the slurry is pumped into the trench immediately. A section of geo-membrane having a thickness of 0.080" is placed in the trench all the way to the bottom of the trench, overlapping at the top of the membrane onto the top surface of the dike. Dry sand is then pumped into the trench to displace the slurry in the trench.

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patent: 5065822 (1991-11-01), Miller et al.
patent: 5407909 (1995-04-01), Goodhue, Jr. et al.
patent: 5454668 (1995-10-01), Liao

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