Hi, While browsing around, I have seen this fine article in Tunnelling Journal and I thought it would interest you too. The author (Richard Lewis of YL Associates) delves into the design of Slurry type Tunnel Boring Machines and gives a...

Hi folks, We are in the market for 17" Disc cutters and one supplier offered us two different manufacturers' products. I noticed that one uses Timken brand ball bearings whereas the other one uses SKF. Anybody has any experience?...

A company called "Hidromek" launches " "World's first" "all electric excavator" at Bauma 2019. It is funny. Because underground we have had electric driven tunnel machines (not only electric Tunnel Boring...

Hi everybody, I know Bauma is a big construction fair. But is it really interesting for a tunneller or is it all cranes and excavators? Thanks

A faboulous interview of Ronald Herr  with Martin Herrenknecht (for those ignorant ones, he happens to be the founder, owner and the head of the Herrenknecht - the leading TBM company): https://bit.ly/2td5wb2 Tell me what you think...

  Bauma announces the Top 10 exhibiting countries at Bauma 2019 trade fair in Munich. A bit shocking actually: what do you think?

Hi guys, not that WTC Naples is approaching, how good or bad do you think the conference bag will be? :-) those of us who participated in the past, speak up  please!