PipeA long tube of clay, concrete, steel, metal, wood, etc., for conveying water, gas, oil or other materials. for conveyance of water, gas, sewage, or other products and services. Some carrier pipe can be installed by direct jacking (i.e. one-pass microtunneling).
A bore in which a pipe, usually a steel casing, is inserted simultaneously with the boring operation.
A direct-jacked pipe in a two pass system that supports a bore. The casing is not a carrier pipe.
A circular mechanism to provide axial and lateral support of a smaller diameter casing than that of the casing pusher.
A pipe installed as external protection to a Product PipeSee Carrier Pipe..