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US 11,230,818 B2Granted
Membrane-lined wall
AssigneeLevee Lock, LLC
InventorsJames H. Lancaster, Gerald L. Deneal, Eric E. Gregg
Life of this patent
Estimating the term…
Abstract
A method for forming a trench and a membrane-lined wall in the trench for levee reinforcement or leak prevention, prevention of water migration, and pollution control of impoundments. The membrane-lined wall generally includes a cementitious or concrete wall formed within an excavated trench. The concrete may be internally reinforced, and the wall may also comprise a double-layer of impermeable geomembrane liner that forms a barrier between the concrete and the sides and bottom of the trench. The membrane or liner reduces water migration, prevents levee leakage, and prevents the escape of contaminants in impoundments.
Claims20
A method of forming a membrane-lined trench, comprising:
- positioning a roll of a liner above a trench, wherein the trench has two sides, a bottom, a length and an interior portion, wherein an axis of the roll is oriented along the length of the trench;
- passing the liner over a positioning roller that is positioned above the trench and oriented along the length of the trench;
- positioning and clamping an edge of the liner above the trench such that the edge is oriented along the length of the trench;
- and
- forcing a portion of the liner between the edge and the positioning roller into the trench such that the liner is supplied from the roll and passes over the positioning roller and downward into the trench, such that the liner extends into the trench to form a continuous, seamless barrier between the two sides and the bottom of the trench and an interior portion of the liner.
2 more elements
A method of forming a membrane-lined trench, comprising:
- positioning a liner installation sled above a trench, wherein the trench has two sides, a bottom, a length, and an interior portion, the liner installation sled comprising two side frame members adapted so that each side frame member can be placed on a side of the trench opposite the other side frame member;
- positioning a roll of a liner above a trench, wherein an axis of the roll is oriented along the length of the trench and mounted on the liner installation sled;
- positioning and clamping an edge of the liner above the trench such that the edge is oriented along the length of the trench;
- forcing a portion of the liner between the edge and the roll into the trench such that the liner is supplied from the roll and extends into the trench to form a continuous, seamless barrier between the two sides and the bottom of the trench and an interior portion of the liner;
- installing a reinforcement mat within the interior portion of the liner;
- and
- filling at least part of the interior portion of the trench with a cementitious material, wherein a weight of the cementitious material forces the liner into contact with the sides of the trench.
4 more elements
A method of forming a membrane-lined trench, comprising:
- positioning a liner installation sled above a trench, wherein the trench has two sides, a bottom, a length, and an interior portion, the liner installation sled comprising two side frame members adapted so that each side frame member can be placed on a side of the trench opposite the other side frame member;
- positioning a roll of a liner above a trench, wherein an axis of the roll is oriented along the length of the trench and mounted on the liner installation sled, wherein the liner comprises an inner layer adjacent to the interior portion of the liner and an outer layer adjacent to the two sides and the bottom of the trench, and wherein the inner layer and the outer layer are each comprised of a low-permeability membrane;
- passing the liner over a positioning roller that is positioned above the trench and oriented along the length of the trench;
- positioning and clamping an edge of the liner above the trench such that the edge is oriented along the length of the trench;
- lowering an elongated, suspended weight to force a portion of the liner between the edge and the positioning roller into the trench such that the liner is supplied from the roll and passes over the positioning roller and downward into the trench, such that the liner extends into the trench to form a continuous, seamless barrier between the two sides and the bottom of the trench and an interior portion of the liner;
- installing a reinforcement mat within the interior portion of the liner;
- and
- filling at least part of the interior portion of the trench with a cementitious material, wherein a weight of the cementitious material forces the liner into contact with the sides of the trench.
5 more elements
Dependencies are inferred from the claim text.