Tunnel boring - Articles - Page 5 | Engineering News-Record

Brenner Base Tunnelers Conquer Peaks and Valleys in the Alps

August 21, 2019

To create the world’s longest rail tunnel, crews pierce beneath the Alps’ rocky peaks and install a challenging underpass below an alpine river

Norway TBMs' Hard Rock Concert

Peter Reina

August 21, 2019

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Two pairs of double-shield tunnel-boring machines break the mold in shaping Norway’s new high-speed railroad between Oslo and Ski.

LA County Metro Unveils Two New TBMs for Purple Line Extension

Erica Berardi

June 19, 2019

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The Los Angeles County Metropolitan Transportation Authority (Metro) on Monday unveiled two new tunnel boring machines (TBMs) for the authority's $9.3 billion Purple Line Extension project, which will connect subway transit service from downtown Los Angeles to the city's westside by 2027.

New Contracting Documents for Tunneling Released

Scott Blair

May 22, 2019

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The International Federation of Consulting Engineers and the International Tunneling and Underground Space Association (ITA-AITES) launched a new set of contract documents specifically tailored to the challenges of underground works that involve geologic uncertainty, including tunneling and foundations.

BAUMA 2019

Herrenknecht's Small-Diameter TBM Snags Innovation Award at Bauma 2019

Cable-tunneling system boasts travel distances of over one kilometer

Jeff Rubenstone

April 11, 2019

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Trenchless tunneling system for power cables boasts drive distances over one kilometer.

More Tunnels Found Along US-Mexico Border

John Guzzon

January 24, 2019

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While the president wants his wall, U.S. Customs and Border Protection agents keep finding subterranean tunnels crossing the U.S. border with Mexico.

International Projects

Tunnel Linking Denmark and Germany Wins Approval

Sunken-tube, 18-km Femern Belt project will start in spring, take 8.5 years

Peter Reina

December 31, 2018

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Project owner Femern A/S won Danish approval of road-rail link in 2015, but German opposition delayed final go-ahead.

Elon Musk Scraps L.A. Test Tunnel Project

December 5, 2018

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Entrepreneur Elon Musk’s Boring Co. has dropped plans to construct a tunnel beneath Sepulveda Boulevard in Los Angeles after a settlement with project opponents.

TBMs Begin Boring Twin Tunnels on Los Angeles Purple Line Extension

Greg Aragon

October 31, 2018

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The $2.1-billion Purple Line Extension Transit Project Section 1 in Los Angeles reached a major milestone recently, as two tunnel boring machines (TBMs) began carving out twin tunnels for the project.