Gall Zeidler Consultants (GZ)

Gall Zeidler Consultants (GZ) Gall Zeidler Consultants (GZ) is a worldwide leader in geotechnics, tunnel engineering, and tunnel construction management, with special expertise in transportation and infrastructure projects.
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The company specializes in mastering difficult ground conditions by utilizing various methods such as dewatering, grouting, and ground freezing. GZ also specializes in tunneling under shallow overburden, and protection of neighboring structures by innovatively combining conventional (NATM) and mechanical tunneling methods (TBM) with ground improvement and state of the art waterproofing techniques.

09/20/2013

GZ principal Dr. Vojtech Gall is presenting this afternoon at #BreakthroughsInTunneling2013 at the #ColoradoSchoolofMines. His presentation is entitled "Devil's Slide and Caldecott 4th Bore" and discusses the project-specific details of these two massive highway tunnel projects, both of which are located in northern California.

06/25/2013

We're here at #RETC2013 in Washington, D.C.! Stop by our booth to learn more about GZ and what we do, as well as where we are located across the globe. Don't forget to pick up some promotional items!

After five years of construction, the Devil's Slide Tunnels on California's Highway 1 are officially open:
04/01/2013
Devil’s Slide Tunnels Open | GZ Gall Zeider Consultans, LLC

After five years of construction, the Devil's Slide Tunnels on California's Highway 1 are officially open:

On March 25, the Devil’s Slide Tunnels on Highway 1 in Pacifica, California opened to the public after five years of construction. These twin highway tunnels were constructed through San Pedro Mountain and bypass a section of Highway 1 that is prone to rock and mudslides. GZ provided IOST support se...

GZ is excited to announce that a paper written by GZ principal Vojtech Gall, GZ tunnel engineer Anthony Bauer and Philli...
01/10/2013
News | GZ Gall Zeider Consultans, LLC

GZ is excited to announce that a paper written by GZ principal Vojtech Gall, GZ tunnel engineer Anthony Bauer and Phillipe Bourdon from BCWF entitled "Prediction of Behavior of Structures due to Large Bore EPBM Tunneling at the Port of Miami" will be published in this years World Tunnel Congress (WTC) Proceedings. For more news visit our website!

http://www.gzconsultants.com/news/

GZ is excited to announce that our paper, entitled “Prediction of Behavior of Structures due to Large Bore EPBM Tunneling at the Port of Miami”, will be published in the 2013 World Tunnel Congress (WTC) Proceedings. The paper was authored by GZ principal Vojtech Gall, GZ tunnel engineer Anthony Baue...

12/05/2012
London, U.K. Office Move

We've moved offices in London, U.K. Our new address is:

Gall Zeidler Consultants-U.K., Ltd.
AMP House, 4th Floor, Suite 7
Dingwall Road
Croydon, Surrey CR0 2LX
United Kingdom
Tel. +44-(0)20-8123-9266

Check out the latest and greatest projects and news with Gall Zeidler Consultants!Launch of the New GZ Website!http://t....
09/18/2012
GZ Gall Zeidler Consultants, LLC

Check out the latest and greatest projects and news with Gall Zeidler Consultants!
Launch of the New GZ Website!

http://t.co/oPBHcWHn

Gall Zeidler Consultants (GZ) is a worldwide leader in tunnel design & engineering and can look at a history of over 170 miles of successfully completed international tunneling projects.

The American Society of Civil Engineers
08/16/2012
The American Society of Civil Engineers

The mission of the American Society of Civil Engineers is to provide essential value to our members & partners, advance civil engineering and serve the public good.

08/13/2012

GZ Finalist at International Tunnelling Awards

Hong Kong, December 1, 2011 – GZ has been elected Finalist in the “International Tunnelling Project of the Year 2011” category with the Dulles Corridor Metrorail Project – Extension of Silver Line Metro to Dulles International Airport.

You can browse or add your own great construction jobsite photos in ENR News' Reader Photo Gallery: http://construction....
10/20/2011
Photo Galleries | McGraw-Hill Construction Community

You can browse or add your own great construction jobsite photos in ENR News' Reader Photo Gallery: http://construction.com/community/publicgallery.aspx?plckGalleryID=65e1bb32-e186-4b20-95e5-aafa57179aa2

We work in a highly visual industry, and our Photo Galleries give our community a chance to both share their own images and view (and comment on) those taken by their peers. Enjoy the photos in this showcase below—and be sure to submit your own.

GZ Principal Vojtech Gall, Ph.D. will present at the British Tunnelling Society's event on November 17, 2011 in London o...
10/03/2011
The British Tunnelling Society

GZ Principal Vojtech Gall, Ph.D. will present at the British Tunnelling Society's event on November 17, 2011 in London on the Dulles Corridor Metrorail Project's Tysons Corner tunnel.

The British Tunnelling Society (BTS) is an associated society of the ICE and was formed in 1971 to provide a forum for meetings and discussion for the mutual benefit of anyone with an interest in a wide range of tunnel related matters. Its primary aim is to promote tunnelling excellence in the Unite...

GZ is shortlisted with the Tysons Tunnel for Tunnelling Project of the Year (
09/22/2011
International Tunnelling Awards

GZ is shortlisted with the Tysons Tunnel for Tunnelling Project of the Year (

The International Tunnelling Awards recognise reward and celebrate excellence in the global tunnelling industry Entries are now open for the 2011 awards which will take place later this year in Hong Kong

GZ Principal Kurt Zeidler, Ph.D. will attend Tunnelling 20Twenty conference in Hong Kong Sept. 20-22. Pls. contact our A...
09/15/2011
Tunnelling 20Twenty - Tunnelling 20Twenty

GZ Principal Kurt Zeidler, Ph.D. will attend Tunnelling 20Twenty conference in Hong Kong Sept. 20-22. Pls. contact our Ashburn office, if you would like to set up a meeting.

Tunnelling 20Twenty is an international tunnelling event focusing on major tunnelling projects - advancing the science, meeting the clients

Our Principal, Vojtech Gall, Ph.D., P.E., will be attending the Rapid Excavation and Tunneling Conference in San Francis...
06/15/2011
RETC 2011-Home Page

Our Principal, Vojtech Gall, Ph.D., P.E., will be attending the Rapid Excavation and Tunneling Conference in San Francisco next week!

RETC is an international forum for the exchange and dissemination of developments and advances in underground construction. RETC is known for timely, quality programming. Issues covered in the program provide innovative solutions to the unique challenges associated with the tunneling industry.

06/09/2011
GZ Locations - Google Maps

GZ Consultant's worldwide office locations!

Find local businesses, view maps and get driving directions in Google Maps

GZ Consultants is now on Facebook! Follow us for news on our ongoing underground projects, construction pics and tunneli...
06/08/2011
Gall Zeidler Consultants, LLC

GZ Consultants is now on Facebook! Follow us for news on our ongoing underground projects, construction pics and tunneling talk.

Gall Zeidler Consultants, LLC (GZ) is a leader in geotechnics, tunnel engineering, and tunnel construction management, with special expertise in transportation and infrastructure projects for major metropolitan settings. We master difficult ground conditions, shallow overburden, and neighboring str

Address

44345 Premier Plz, Ste 210
Ashburn, VA
20147

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