Week 23 Tunnelling & TBM Course: Microtunnelling & Trenchless Tech.

During the Week 23 (23rd June to 27th June) of our MAS course on Tunnelling and TBM, we had a special lecture by Dr. Ray Sterling, P.E. (Professor Emeritus at Louisiana Tech University) on Microtunnelling and Trenchless Technology.

Prof. Sterling's lecture gave an overview of the different trenchless technologies available (displacement methods, HDD, Pipe jacking & Hybrid methods). The three day lecture series was focussed on:

• Suitability and advantages of various trenchless methods
• Estimation of jacking loads and ground loss during microtunnelling
• Estimation of Direct, Indirect and Social cost of a typical trenchless project

Prof. Ray Sterling's Lecture on Trenchless Technology and Microtunnelling

Prof. Sterling also presented two case studies on the use of trenchless technology for installation of Sewer system in Berlin [5] and experience in Europipe project [6].

References:

[1] Stein, D., 2005. Trenchless Technology for the Installation of Cables and Pipelines, Ernst and Sohn, Germany.

[2] Bennett, D., 1998. Jacking Loads and Ground Deformations Associated with Microtunneling, Ph.D. Thesis, University of Illinois at Urbana-Champaign.

[3] Milligan, G. W. E., and C. D. F. Rogers. "Chapter 19: Trenchless technology." Geotechnical and Geoenvironmental Engineering Handbook. Springer US, 2001. 569-592.

[4] Microtunneling and Horizontal Drilling, Recommendations by French Society for Trenchless Technology, Hermes Science Publishing Ltd, 2004

[5] Mohring, K. "Berlin- capital city of microtunnelling." No-Dig International 4.5 (1993): 5-6.

[6] Lauritzsen, R., O. K. Sande, and A. Slatten. "Europipe landfall tunnel." Publikasjon-Norges Geotekniske Institutt 197 (1996): G2-1.