Today on Tunnels & Tunnelling International


LATEST NEWS

MTA approves Judlau rebuild contact
30 March, 2015 USA - New York governor Andrew Cuomo announced March 23 that the MTA intends to award a four-year, USD 236.5M contract to rebuild the Queens Midtown Tunnel, which was heavily damaged during Superstorm Sandy and since has been operating with temporary repairs. The contract – which would be with Judlau Contracting Inc. – was approved by the MTA Bridges and Tunnels Committee on March 23, and sought full MTA Board approval on Wednesday.
  • International Tunnelling Association launches awards
    GLOBAL - The International Tunnelling Association (ITA) has launched its own independent awards. Starting this year, the first ceremony will be held in the Hagerbach Test Gallery in Switzerland. It will include a conference and banquet, registration for which will open in July 2015.
  • Western powers flock to new Asian investment bank
    GLOBAL – The new Asian Infrastructure Investment Bank (AIIB) has drawn several western countries into its fold. The China-led venture is an international financial institution that aims to marry Asia’s vast financial reserves with its dire need for ever-higher infrastructure funding. The startup capital is USD 50bn.
  • Worker killed on KL MRT
    MALAYSIA – One worked died while another was injured in an accident at the Semantan Portal Mass Rapid Transit (MRT) construction site last month. A spokesman said the incident involved three Bangladeshi workers.

LATEST FEATURES

Predicting settlements from conventional tunneling
25 February, 2015 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.
  • Future writ large
    Desiree Willis, Robbins technical writer takes a look at the changing face of large diameter Earth Pressure Balance Machines.
  • 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.
  • 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.
  • 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
25 February, 2015 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.
  • 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.
  • 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.
  • 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.
  • 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.