Clay liner for steep slopes

Details Clay liner for steep slopes Clay liner for steep slopes

1994-03-07

1996-10-15

Suchfield, George A.

Hydraulic and earth engineering

Earth treatment or control

Impermeabilization

405129, 428 87, 428 92, E02D 312, B09B 100, B32B 306

Patent

active

055648649

ABSTRACT:
A flexible clay liner in roll form for use on steep slopes. The liner includes a layer of geotextiles. The geotextiles are stitched together in rows of stitches which extend along the length of the liner. The thread used to make the stitching is a multifilament thread treated with a resin to prevent wicking through the liner. The spacing of the rows of stitches and the frequency of stitches along the rows are sufficient to transfer shear stresses through the bentonite layers, thus preventing the bentonite from becoming a shear plane.

REFERENCES:
patent: 4344722 (1982-08-01), Blais
patent: 4501788 (1985-02-01), Clem
patent: 4565468 (1986-01-01), Crawford
patent: 5041330 (1991-08-01), Heerten et al.
patent: 5237945 (1993-08-01), White
patent: 5436050 (1995-07-01), Carriker et al.

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