February 21, 2017 to February 22, 2017
Dubai, UAE

The 4th Arabian Tunnelling Conference (ATC 2017), held in conjunction with the 20th Gulf Engineering Forum (GEF 2017), takes place on the 21-22 February 2017 at the Ritz Carlton in Dubai International Financial Center, United Arab Emirates.The ATC is the number one networking hub of Tunnell

April 18, 2017 to April 20, 2017
Innsbruck, Austria

EURO:TUN 2017 is the fourth conference of a series of successful ECCOMAS Thematic Conferences on Computational Methods in Tunneling, started in 2007 in Vienna and continued in 2009 and 2013 in Bochum.

June 4, 2017 to June 7, 2017
San Diego, USA

Every two years, industry leaders and practitioners from around the world gather at the Rapid Excavation and Tunneling Conference (RETC), the authoritative program for the tunneling profession, to learn about the most recent advances and breakthroughs in this unique field. Dr.

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August 16, 2005

Recent Advances in Geotechnical Engineering Seminar

Boston Society of Civil Engineers Section - ASCE

The BSCES Geo-Institute will be holding a one-day seminar on "Recent Advances in Geotechnical Engineering" on Saturday, October 29, 2005 at Bentley College.  Over ten speakers will cover topics such as recent advances in automated data collection, field testing, composite/light weight materials, alternative foundation systems and innovative tunnel construction techniques.

July 11, 2005

Tunneling starts at Beacon Hill

July 5, 2005 - Just arrived at the Port of Seattle, Sound Transit's new Mitsubishi tunnel boring machine (TBM) after transport from the factory located in Kobe, Japan.  The TBM will be used to construct the twenty foot diameter parallel running tunnels for Sound Transit's Link Light Rail through Seattle's Beacon Hill.  The tunnels will pass through the Beacon Hill Station complex located mid-way along the line as shown below.

June 27, 2005

RETC Seattle 2005

The 2005 Rapid Excavation and Tunneling Conference was held in Seattle, WAfrom June 27 - 29, 2005.  This year’s conference offered a diverse array of interesting papers that spanned all aspects of underground construction and tunneling, as well as a forecast for future projects.  One of the highlights of the event was a site tour atSound Transit's Beacon Hill Station project site.  The underground station will be a crucial part of the Seattle Link Light Rail expansion and was designed by the Dr. G. Sauer Corporation (DSC) as a subcosultant to the Hatch Mott MacDonald / Jacobs Joint Venture.

April 25, 2005

Dry Cut-and-Cover Station for MBTA in Boston

With the recent opening of the Silverline Phase II the MBTA did not only put in service a 2 mile long section of running tunnels containing technically challenging segments such as immersed tubes through the Fort Point Channel and NATM binocular tunnels at the historic Russia Wharf Building, but also opened two new underground stations along the alignment.

February 22, 2005

Beacon Hill Progress: Slurry Wall Construction in Progress

The construction at Sound Transit's Beacon Hill Station is progressing on schedule. The construction of slurry wall panels for Headhouses and Shafts has been started recently. 
Meanwhile, exploratory drilling is under way to determine the extent of water bearing sand and silt layers. These will be improved by jet grouting from the surface and dewatering with deep wells.

December 25, 2004

Santiago's Line 2 South opens!

On 22 December 2004 President Lagos opened the third and last segment of a line extension program undertaken by Metro Santiago over the last five years. The Line 2 South Extension will add 2.3km of track and two stations to the network of Santiago Metro. The terminal station, La Cisterna at the intersection of Gran Avenida José Miguel Carrera and Américo Vespucio Sur Beltway, two major highways in the south of Santiago, will be the future connection to the western spur the new Line 4, currently under construction. The line extension was designed and constructed in less than five years and the cost for the civil works were slightly below $30 million.

November 22, 2004

Dulles Walkback Tunnel complete!

The d2 “Dulles Development” began in 2000 and passengers have benefited from some of the many planned improvements.  One such improvement will open to the public next month.

October 22, 2004

Dr. Gerhard Sauer at Stanford University

On October 20th 2004 Dr. Gerhard Sauer presented a lecture on his article "Tunneling and Beyond" in Prof. Russel Clough's construction management class at Stanford University.

The Audience consisted of graduate students and interested members of the industry.

October 12, 2004

Design Progress at Pittsburgh's North Shore Connector

The Port Authority of Allegheny County is currently undertaking an expansion of the T to the north of the city which includes 3 underground stations and 1 aerial station connected by bored tunnels under the Allegheny River, cut-and-cover tunnels and a mined tunnel using NATM.

The Dr. G. Sauer Corporation, a subconsultant for DMJM+Harris, is responsible for the waterproofing design of all cut-and-cover and mined structures as well as the NATM design of a 440 foot section of double track tunnels south of the proposed Convention Center Station. 

September 25, 2004

Success in Returning to Clients Dry Tunnels

We have demonstrated that water leaks in existing tunnels can be controlled to minimize their impact to the function of the tunnel.