Four new craters in the Siberian permafrost in northern Russia are raising fears that global warming may be causing underground gas explosions. Scientists are still investigating the causes for the crate formation stating that this could be the same phenomenon that formed the Bermuda Triangle.
Engineers at the Technical University of Munich (TUM) have come up with a way to prevent concrete spalling caused by excessive temperature built up during a tunnel fire. The new technology consists of fibers added in the concrete but the changes in concrete behavior remain still to be investigated.
The railway line connecting Banbury and Leamington Spa was blocked with nearly 350,000 tonnes of soil and rubble after a massive landslide in early February. Satellite photographs of the area, from 2006 till 2012 show the gradual deforestation of the adjacent slope, this being considered the main reason for the landslide.
TBM Bertha, used for opening the tunnel in the Alaskan Way Viaduct Replacement Project is on the move again, after major overheating problems that caused the machine to remain still for more than a year. The machine is expected to reach an access pit so that crews can perform necessary repairs.
With nearly 70,000 bridges requiring repair works across the U.S. and an estimated cost of $70 billion, Associate Professor's 3-D model aims in facilitating officials and transportation agencies to monitor the aging infrastructure more efficiently and prioritize the required repair works.