The International Information Center for Geotechnical Engineers

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Building the underground Singapore - Kuala Lumpur high speed rail (HSR) terminus is likely to be challenging, time-consuming and costly, mainly due to the soft soil conditions prevailing in the area, as acknowledged by civil engineer experts. Despite the difficult soil conditions, typically encountered in many other sites of the country, authorities appear confident that construction of the terminal will be eventually realized. Different soil improvement methods have so far been proposed, and detailed soil investigations will be required before actual construction begins. 

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The increase in the frequency of low intensity tremors, originating from the San Andreas Fault, about 10 hours after the magnitude 6 Napa earthquake last August, and an observed increase in two other locations, frequently struck by earthquakes, has set the ground for a comprehensive search for tremors across the state. Watch the video with UC Berkeley seismologist Peggy Hellweg describing how "Tremorscope" a new technology may explain a possible connection between tremors and earthquakes. 

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What most commuters of Amtrak trains crossing the Hudson River do not have the opportunity to see, was witnessed by U.S. Senator Cory Booker and Amtrak officials. View of the damaged from hurricane Sandy 105-year old rail tunnels was recorded on video, showing the spalling and corrosion on the concrete bench walls. It is estimated that the tunnels have about 20 years of life, before they are shut down for repair works. Replacement of the tunnels is also examined by officials, with total cost being estimated at $20 billion.

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Researchers from the National Science Foundation (NSF) have gathered evidence for the existence of a salty aquifer beneath Antarctica's ice-free McMurdo Dry Valleys, by using an airborne electromagnetic (AEM) sensor, known as SkyTEM, mounted to a helicopter-borne sensor. The salty aquifer may support microbial ecosystems and play an important role in contemporary biological processes in the Dry Valleys.

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Friday, 08 May 2015 00:00

SR 99 Tunnel nerve Centers On The Way

Safety and efficiency are the key factors in the construction of the SR 99 tunnel, since there will be safety requirements ensuring that it will be adequate for the volume of traffic by using lighting and intelligent transportation systems, while the ventilation, drainage and fire-suppression systems will prevent incidents in accidents.

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