At the INTERGEO 2010 conference in Cologne, Germany, Trimble announced its 4D Control Software for monitoring of movements on a variety of structures and geotechnical features. It even includes the ability to connect to various geotechnical sensors such as tiltmeters and piezometers to complement the monitoring of geo-referenced points such as survey prisms. Users can customize alert tolerances and notification settings. It also includes a module for a web interface. [Source: PRNewswire. Image: Trimble]
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ASTM Updates for April 2011
It’s that time again. Here are a collection of changes/additions to ASTM standards that are relevant to geotechnical engineers, soils labs, CQA firms and related disciplines. There are a couple of interesting new standards available. D7698 is a new procedure for estimation of in-place density and water content of soil and aggregate by correlation with complex impedance. I’m not eactly sure what that is, but it sounds cool. There is also a new standard (D7702) that provides guidance for the evaluation of direct shear results involving geosynthetics. Read on for these and other updates.
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Geosynthetics Manufacturers to Specifiers: Get With The Times
In an open letter to geotechnical engineers and agencies that specify geosynthetics on their projects, the Geosynthetics Manufacturers Association (GMA) has requested that specifiers use the correct standards when referring material properties of geotextiles and […]