Field assessment of a Vacuum Microtunneling (VMT) system for on-grade pipeline installations

Samuel Ariaratnam, Kalyan Piratla, Aaron Cohen

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Utility owners and engineers are being tasked with finding methods for the installation of on-grade pipelines in an economical and minimally disruptive manner, while also providing environmental benefits. This paper demonstrates the advantages of trenchless technology through the results of a field evaluation of an on-grade sewer project in Glenview, Illinois employing the AXIS™ Vacuum Microtunneling (VMT) system. Three separate installations of 250. mm (10") diameter PVC pipes at grades of 0.55% in sections of 55. m (176. ft), 85. m (278. ft), and 100. m (331. ft) in soft clay soil conditions were analyzed. The project was conducted in a pristine residential neighborhood thus necessitating the use of a trenchless method. Field analysis examined productivity, costs, and environmental impacts for comparison to traditional open-cut in an attempt to quantify the benefits of adopting trenchless technology. The VMT system was found to have inherent benefits compared to traditional open-cut construction. A cost comparison found the depth at which VMT begins to be more cost-effective compared to traditional open-cut to be 3. m (10. ft). Productivity averaged 7.92. m/h (25.89. ft/h) for the three VMT installations compared to approximately 5.5. m/h (18. ft/h) estimated for a similar open-cut option. The average emissions emitted from the VMT installations were 35% of the open-cut option.

Original languageEnglish (US)
Pages (from-to)58-65
Number of pages8
JournalTunnelling and Underground Space Technology
Volume39
DOIs
StatePublished - Jan 2014

Fingerprint

Pipelines
Vacuum
trenchless technology
cost
productivity
Productivity
soft clay
soft soil
Costs
clay soil
Sewers
environmental impact
pipe
Polyvinyl chlorides
Environmental impact
Clay
Pipe
Soils
Engineers
method

Keywords

  • Emissions
  • Microtunneling
  • On-grade sewer
  • Productivity
  • Trenchless

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Building and Construction

Cite this

Field assessment of a Vacuum Microtunneling (VMT) system for on-grade pipeline installations. / Ariaratnam, Samuel; Piratla, Kalyan; Cohen, Aaron.

In: Tunnelling and Underground Space Technology, Vol. 39, 01.2014, p. 58-65.

Research output: Contribution to journalArticle

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