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Trenchless method of installing a monolithic manhole in a levee for pipe access
A monolithic manhole is formed in a levee without trenching, to provide access to drain pipes within the levee for maintenance and repair of the pipes. The manhole is formed by first forcing an outer tube downwardly into the earth and levee and removing soil from within the outer tube to expose the pipe. An inner tube is lowered into the outer tube, with an annular space maintained between the tubes. The annular space is filled with concrete, which hardens to form a monolithic vertical wall. A concrete floor may be poured at the bottom of the wall and a cover attached to the top of the wall. A hole is cut in the pipe inside the wall to provide internal access to the pipe.
Trenchless method of installing a monolithic manhole in a levee for pipe access
A monolithic manhole is formed in a levee without trenching, to provide access to drain pipes within the levee for maintenance and repair of the pipes. The manhole is formed by first forcing an outer tube downwardly into the earth and levee and removing soil from within the outer tube to expose the pipe. An inner tube is lowered into the outer tube, with an annular space maintained between the tubes. The annular space is filled with concrete, which hardens to form a monolithic vertical wall. A concrete floor may be poured at the bottom of the wall and a cover attached to the top of the wall. A hole is cut in the pipe inside the wall to provide internal access to the pipe.
Trenchless method of installing a monolithic manhole in a levee for pipe access
HUSTON MATT (author) / INGHAM MICHAEL (author)
2021-03-16
Patent
Electronic Resource
English
TRENCHLESS METHOD OF INSTALLING A MONOLITHIC MANHOLE IN A LEVEE FOR PIPE ACCESS
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