| CONTENTS


14 5


12 23 36 48 Summer 2023 | 7


Robbins TBM made multiple drives on DigIndy project in Indianapolis, US Photo credit: Robbins


Comment 9 News REGULARS


Buyers Guide


32 54 Events 20 20 26 41


23 26


30 36 41


48


12 14


Projects: US


Hudson update TTNA Latest on Hudson Tunnel plans.


Technical


Using rebuilt TBMs TTNA, Robbins Webinar talks multi-use of TBMs and carbon reduction.


BTS


Developing your tunnelers Mike King, MK Tunnelling Join BTS flagship training, this July.


Projects: Insight


Early involvement benefits H Wannick, R Krammer, P Sander Insurer input to reduce risk.


Technical


ITA Guidelines on Shafts TTNA Many names for shafts, tunnels.


Muon sight in tunnels Prof Lee Thompson, Geoptic Cosmic ray R&D to find voids.


BTSYM


Madrid Traditional Method R Sizer, C Dias, Ayesa Meeting report on evolution of the Belgian Method.


Preview


RETC 2023 TTNA Program for RETC 2023, in Boston, plus trenchless spotlight.


Canada Progress in Vancouver TTNA TBMs advance on Broadway.


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