microtunneling

microtunneling

A trenchless construction method for installing pipelines with the following features:

Remote controlled - the MTBM is operated from a control panel, normally located on the surface. It simultaneously installs pipe as spoil is being excavated and removed.

Guided - The guidance system usually refers to a laser beam projected onto a target in the MTBM, capable of installing gravity sewers or other types of pipeline to the required tolerance for line and grade.

Jacking pipe - The process of constructing a pipeline by consecutively pushing the MTBM through the ground using a jacking system.

Face support - Continuous pressure is provided to the face of the excavation to balance groundwater and earth pressure.

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Part of Speech: noun
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Industry/Domain: Construction
Category: Trenchless construction
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