Today on Tunnels & Tunnelling International
Banking on it
Work on an EPA-mandated tunnel will clean up an urban Ohio waterway. Desiree Wills, technical writer for The Robbins Company reports on the construction, TBM and the severe winter weather of the...
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Playing it safe
The insurance market for tunnel construction projects has changed dramatically in recent years. Warren Beardall, client director for Aon gives an overview of the changing nature of insurance in the...
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San Francisco success
The first water passed through the 8km-long San Francisco Bay Tunnel in October 2014, well ahead of an original 2015 schedule. The project also came in well under budget, Adrian Greeman reports.
Read moreLATEST NEWS
Weeks Hall of Engineering to be built at Rutgers
USA - Gifts totalling USD 10M to the Rutgers University Foundation will name a gateway engineering building the Richard Weeks Hall of Engineering, honoring 1950 alumnus Richard N. Weeks, chairman of Weeks Marine. Weeks donated USD 6M and another alumnus who has chosen not to be named provided USD 4M as part of a challenge grant.
USA - Gifts totalling USD 10M to the Rutgers University Foundation will name a gateway engineering building the Richard Weeks Hall of Engineering, honoring 1950 alumnus Richard N. Weeks, chairman of Weeks Marine. Weeks donated USD 6M and another alumnus who has chosen not to be named provided USD 4M as part of a challenge grant.
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Bertha breaks into repair pit
Washington - Seattle Tunnel Partners (STP) advanced the TBM mining the Alaskan Way Viaduct replacement tunnel in late February into the access pit where it will disassemble the machine to perform repair work.
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Tunnel construction starts on Honolulu wastewater project
Hawaii - Honolulu Mayor Kirk Caldwell announced the start of tunnel construction for the City and County of Honolulu’s Kaneohe-Kailua Gravity Sewer Project, on February 13.
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Tunnelling complete on Harbor Siphons
New York - TBM mining some 35m below New York Bay completed on January 28, on the 2.9km-long tunnel for the New York City Harbor Siphons Project.
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Alice takes a breather
NEW ZEALAND – The backup train of the Waterview Connection TBM was in the process of being turned to join up with the cutterhead and shield already working on its second bore path as Tunnels and Tunnelling went to press.
LATEST FEATURES
Predicting settlements from conventional tunneling
The Üsküdar – Ümraniye – Çekmeköy (UUc) project in istanbul, turkey is an extension to the metro on the asian side of the city, running 17km underneath a dense urban area. Some 8km of tunnels needed to be excavated through weak to medium strong sedimentary rock using conventional methods. In this article based on a paper presented at WTC Brazil, Sara Bech Padrosa and Nicola Della Valle of Tunnelconsult share some of the lessons learned from the settlement prediction methods employed.
The Üsküdar – Ümraniye – Çekmeköy (UUc) project in istanbul, turkey is an extension to the metro on the asian side of the city, running 17km underneath a dense urban area. Some 8km of tunnels needed to be excavated through weak to medium strong sedimentary rock using conventional methods. In this article based on a paper presented at WTC Brazil, Sara Bech Padrosa and Nicola Della Valle of Tunnelconsult share some of the lessons learned from the settlement prediction methods employed.
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Future writ large
Desiree Willis, Robbins technical writer takes a look at the changing face of large diameter Earth Pressure Balance Machines.
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Wuhan can
A boom in investment over the last half decade has seen meteoric changes for Central China’s unofficial capital, Wuhan. One of the fruits of the investment is the Sanyan (or Sanyang) Road tunnel project. A combined road-rail crossing of the Yangtze River that is the first multifunction tunnel in China.
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Investment in Asia
Danny Richards, a senior economist for the market analysis arm of Timetric, Tunnels and Tunnelling’s publisher, gives an overview of infrastructure investment in select Asian countries during a review period of 2009-2013, and presents the results of market analytics to predict the value performance of infrastructure sectors in a forecast period up to 2018.
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Common Core
In an effort to advance characterization practices for complex rockmasses, Jennifer Day, the 2014 Eisenstein Memorial Scholarship winner, Mark Diederichs, and Jean Hutchinson, all of Queen’s University’s Geological Sciences and Geological Engineering department in Kingston, have developed and tested several new core logging procedures that account for healed structures that are present in such rockmasses.
BLOGS
High tide
It’s an exciting time for the International Tunnelling Association (ITA) leadership. With growing international acceptance that climate change is affecting the world, there are two outcomes. Firstly, governments try to change the habits of the planet to slow the pace of a changing biosphere. This is a boost to the demand for tunnelling on the larger scale; governments looking for low-carbon per capita means of transportation, for example. Metro networks rather than private car ownership.
It’s an exciting time for the International Tunnelling Association (ITA) leadership. With growing international acceptance that climate change is affecting the world, there are two outcomes. Firstly, governments try to change the habits of the planet to slow the pace of a changing biosphere. This is a boost to the demand for tunnelling on the larger scale; governments looking for low-carbon per capita means of transportation, for example. Metro networks rather than private car ownership.
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What is sustainable infrastructure?
It's not underground, one would conclude from a report asking, what does the future of sustainable infrastructure look like? Making use of underground space is not once mentioned.
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China Decider
In December Australia’s multi-industry contracting giant Leighton Holdings announced the impending sale of John Holland to the fourth largest construction company in the world. The buyer, state-owned China Communications Construction Company (CCCC) stressed that it would be “business as usual” for John Holland customers, that it perceived growth opportunities in Australia. Normal commentary during a takeover.
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Old dogs teach new tricks
BY NOW it's an autumn tradition in the UK. The leaves are turning, the daily commute has the added pleasure of the _ u virus, and a study has warned that we face a critical shortage of engineers.
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Old wine for New wine
POPE FRANCIS delivered a pep talk to the European Parliament last month. In it, he gently styled the continent as feeling haggard and elderly. No longer able to meet its challenges with vigour or vitality.
LATEST EVENTS
9th China Tunnel & Bridge Summit
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NASTT’s 2015 No-Dig Show
NASTT’s No-Dig Show is the largest trenchless technology conference in North America, where professionals attend to learn new techniques that will save money and improve infrastructure. The overall No-Dig program is focused on one objective: helping you maximize your investment in trenchless technologies, services and applications.
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