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ASCE 36-01

Standard Construction Guidelines for Microtunneling

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Organization: ASCE
Publication Date: 1 January 2001
Status: active
Page Count: 52
scope:

This standard guideline covers the planning, design, pipe materials, and construction of microtunneling. Microtunneling is defined as a trenchless construction method for installing pipelines. The North American definition of microtunneling describes a method and does not impose size limitations on such method; therefore, a tunnel may be considered a microtunnel if all of the following features apply to construction:

Remote controlled: The microtunneling boring machine (MTBM) is operated from a control panel, normally located on the surface. The system simultaneously installs pipe as spoil is excavated and removed. Personnel entry is not required for routine operation.

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

Pipe jacked: The pipeline is constructed by consecutively pushing pipes and MTBM through the ground using a jacking system for thrust.

Continuously supported: Continuous pressure is provided to the face of the excavation to balance groundwater and earth pressures.

Document History

January 1, 2015
Standard Design and Construction Guidelines for Microtunneling
This standard guideline covers planning, design, pipe materials, and construction of microtunneling. The term microtunneling is defined as a trenchless construction method for installing pipelines....
ASCE 36-01
January 1, 2001
Standard Construction Guidelines for Microtunneling
This standard guideline covers the planning, design, pipe materials, and construction of microtunneling. Microtunneling is defined as a trenchless construction method for installing pipelines. The...

References

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