Tunnel Business Magazine

AUG 2018

TBM: Tunnel Business Magazine is the market leader for North America. TBM is written for leading professionals in all aspects of tunneling and covers project stories, design elements, contracting strategies, legal issues, new technology and more.

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TUNNELINGONLINE.COM TBM: TUNNEL BUSINESS MAGAZINE // AUGUST 2018 queens, new york and NYCMTA Capital Construction, Moretrench F E A T U R E S T O RY 3 5 Outstanding Educator Award: Priscilla P. Nelson Dr. Pris on is professor and head of the Department of ering at the Colorado School evi- ously was provost at ey Insti- tute of Technology, program director and senior advisor at the U tional Science Foundation, and professor in civil engineering at the University of Texas at Austin. She has worked for the U.S. Department of Energy and the state of Texas on the superconducting super collider project, and she served two terms on the U Technical Review Board. on is a Distinguishe ber of the American Society of Civil En- gineers (ASCE), former president of the Geo-Institute of ASCE, a lifetime member, first president and Fellow of the American Ro chanics Asso- ciation, and a Fellow of the American Association for the Advancement of Science. She is a memb and is an Eminent Engineer with Tau Beta Pi. She received the Kenneth Andrew Roe Award from the American Asso- ciation of Engineering Societies and the 2011 ASCE Henry L 2016, she was appointed chair of the esearch Ad- visory Committe on received a B.S. degree in geol- ogy from the University of Rochester, ology from Indiana Uni- versity al engineer- ing from the University of Oklahoma and a Ph.D. from Cornell. She has pub- lished more than 150 technical and sci- entific publications. The Outstanding Educator Award is presented by the UCA Executive Committee to professors and teach- ers who have had an exceptional career in academia and education in the areas of underground design and construction. These individuals have also made significant contributions to the industry through their academic interests, as well as through the in- troduction of many student graduates into the industry. They are nominated by their peers. the frozen arch and constructing the tunnel, including underpinning the elevated rail line and penetrating the existing four clusters of 16 pipe piles, which were indicated without any detail on old structural drawings. There were unique and previously unat- tempted settlement and heave-control measures performed in conjunction with a fro- zen ground improvement to protect the pre-existing transit structures. Other challenges included waterproofing, which was installed in stages due to the underpinning piles, and the final lining, which was constructed using shotcrete and massive ring steel. The complex and challenging project was marked by extensive pre- planning, stringent controls, a sophisticated monitoring program and a cooperative project team effort, which resulted in problem-free tunnel excavation with no appre- ciable movement of the overhead structures. The Project of the Year Award recognizes an individual or a group that has shown insight and understanding of underground construction in a significant project, which may include a practice, developing concepts, theories or technologies to overcome un- usual problems within a project. The East Side Access Northern Boulevard Crossing in Queens, New York, involved using innovative grouting for heave and settlement control during SEM tunneling beneath a frozen ground arch.

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