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US 5,480,260 AGranted
Ground water collection method and apparatus
AssigneeDames & Moore
InventorsDennis R. Shattuck, Eric C. Volpenhein
Life of this patent
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Abstract
A method and system for collecting ground water segregated from storm water are provided in which an existing storm sewer pipe may be retrofitted by forming a ground water channel and a storm water channel therein. The two channels may be formed by disposing a lining within the existing pipe which segregates the pipe into two distinct flow passageways. A new pipe may also be similarly used for collection of ground water.
Claims4
A method of collecting groundwater using an existing underground pipe having an interior surface defining an interior passageway, comprising the steps of:
- (a) disposing at least one generally U-shaped channel within said interior passageway, said interior surface having an invert, said channel opening toward said invert of said interior surface;
- (b) inserting a flexible lining within said interior passageway;
- (c) hardening said lining in situ into a rigid lining;
- (d) using the inside surface of said lining to define an interior storm water passageway;
- (e) defining a groundwater passageway between said lining and said interior surface of said pipe;
- (f) utilizing said lining to fluidically isolate said storm water passageway from said groundwater passageway;
- (g) forming at least one fluid passageway between said groundwater passageway and the environment surrounding said pipe;
- (h) interposing a drainage net between said interior surface of said pipe and said lining extending therebetween from said at least one fluid passageway to said channel;
- and
- (i) defining by means of said drainage net a plurality of flow passageways between said at least one fluid passageway and said channel.
7 more elements
Dependencies are inferred from the claim text.