Geo synthetic clay liner
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Geo-synthetic Clay Liner. Geotextile. Bentonite. Polyethylene Geo-Film. Geotextile. Location of Slurry Wall and GCL. Re-graded. C. L. Slope of 3H:1V. Saw Cut Asphalt Concrete Pavement . Existing Pipe. ∆ 3.5 ft. 4FT. 2 FT(Typ.). 1.5 FT. 2 FT. Proposed Elevation. Slurry Wall.

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Geo-synthetic Clay Liner

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Geo synthetic clay liner

Geo-synthetic Clay Liner

Geotextile

Bentonite

Polyethylene Geo-Film

Geotextile


Location of slurry wall and gcl

Location of Slurry Wall and GCL


Geo synthetic clay liner

Re-graded

C

L

Slope of 3H:1V


Geo synthetic clay liner

Saw Cut Asphalt

Concrete Pavement

Existing Pipe

∆ 3.5 ft

4FT

2 FT(Typ.)

1.5 FT

2 FT

ProposedElevation

Slurry Wall

Not To Scale


Geo synthetic clay liner

12 inch seams

GCL

15 ft

Existing Pipe

Slurry Wall

Not To Scale


Geo synthetic clay liner

∆ 3.5 ft

Join AC Pavement

4 ft

2 ft of 90% Compacted Soil

2 ft

1.5 ft

GCL

2 ft

Not To Scale


Geo synthetic clay liner

2ft Compacted Soil

Anchor

GCL

Slurry Wall

Not To Scale


Feasibility

Feasibility

  • Calculating Cover Thickness

    • Vertical stress due to circular loading

    • Assuming HS-20 loading

    • Final thickness: 2 ft.

  • Calculating Slope Stability

    • Average of cross-sections located at north and south end of canal

    • Liner tension must fall under 312 lbs/ft or negative.


Performance

Performance

Re-graded

C

L

Slope of 3H:1V


Performance1

Performance

AFTER

qDESIGN=2.55 ft3/day

40% reduction of seepage

  • BEFORE

    • qCRITICAL= 4.44 ft3/day


Geo synthetic clay liner

Cost

Total Cost: $700,000


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