Principals

Gall Zeidler Consultants (GZ) is headquartered in Northern Virginia in the Dulles Technology Corridor, located approximately 25 miles from the District of Columbia and 15 miles from Dulles International Airport.  With experience gained on tunneling projects world wide, GZ’s principals lead a dedicated staff of professionals in delivering state-of–the–art underground projects. The company promotes the use of modern technology in the development and maintenance of underground space thereby nourishing living standards and economic growth in urban settings while protecting natural environments.

Vojtech Gall, Ph.D., P.E.

Principal

Vojtech Gall PhD, PE Experience Summary
Vojtech Gall, Ph.D., P.E., has over twenty-five years of experience in the design, construction, and construction management of tunnels and underground structures.  His expertise encompasses soft-ground, mixed-face, and rock-tunneling for transit structures in urban settings utilizing TBM, conventional tunneling (SEM / NATM), and cut-and-cover techniques frequently employing ground improvement measures to facilitate mined tunneling by means of grout injections, specialty fore-poling systems and ground freezing.  He frequently serves on expert review panels dedicated to the investigation and improvement of tunneling schemes ranging from initial inception stages through final design development at bid document level.

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Kurt Zeidler, Ph.D., CEng

Principal

Kurt Zeidler PhD, CEng, FIMMExperience Summary
Kurt Zeidler, Ph.D., CEng, has over thirty years of experience in geotechnical engineering, project management, design and design checks, underground construction, and rock soil slope stabilization projects. He is called on as an expert consultant for projects all over the globe, including the United States, Europe, North Africa, Australia, and Asia. His primary expertise lies in the design of modern excavation and support systems for tunnels, underground stations, and caverns in hard rock and soft ground in urban areas.

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