Over the past two decades soft ground and mixed face TBM tunnels have increased in diameter such that the term…
The Battle Born State of Nevada is no stranger to fighting for its share of resources. When drought struck the…
Each year, TBM: Tunnel Business Magazine takes a look at the coming year by polling a sampling of tunneling professionals.…
Founded in 1947 by Thomas R. Camp, Herman G. Dresser and Jack E. McKee, CDM Smith has grown to become…
BRH-Garver Construction LP, a Houston based civil construction contractor, pipe jacked 885 lf of 66-in. ID Permalok casing filled with…
The Underground Committee of the American Shotcrete Association (ASA) has published two new position statements covering two critical topics of…
EDITOR’S NOTE: Implementing risk management strategies early on for underground and tunneling alternative delivery projects can mitigate the additional risks…
In 2016, Barcelona opened its metro line connecting the city to the airport. This was a much-requested infrastructure for the…
Crew Overcomes Challenges to Completed La Cienega Interceptor Rehab Most large urban areas depend on interceptor sewers to convey sewage…
Record-breaking TBM Completes Monumental Voyage In August 2019, a 6.8 m (22.3 ft) diameter Robbins Single Shield TBM accomplished an…