Specialty geotechnical drilling contractor, Crux Subsurface, Inc. of Spokane, Washington was acquired Quanta Services (NYSE: PWR), an S&P 500 company and a leader in infrastructure services for the electric power, pipeline and telecommunications industries according to an announcement made in Early April. Crux is well known for their difficult access drilling for geotechnical and environmental projects, but has increasingly gotten into the micropile market, particularly in support of the energy sector. [Source: Crux via National Driller. Image: Crux]
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Changes in Geotechnical Engineering Practice in Arizona
[Editor] Note: NCS Consultants, LLC is Randy Post’s full time employer…ie. my day job! [/Editor]
There are some significant changes being made to the state of the practice in geotechnical engineering in Arizona. NCS Consultants, LLC has prepared three policy memoranda for the Arizona Department of Transportation or ADOT that have been issued to consultants all over the State. These memos are on the topics of bearing capacity and settlement of spread footings and retaining walls, the design of drilled shaft foundations in gravelly soils, and the preparation of drilled shaft axial capacity charts for use by bridge engineers.
Although primarily applicable to upcoming ADOT projects implementing the AASHTO 2007 LRFD code, the memos will have a ripple effect down through other local agencies within the state who frequently defer to ADOT guidelines for geotechnical engineering. Also, the memos and the ADOT/NCS approach to LRFD implementation in geotechnical engineering were presented by NCS at the 2008 TRB Conference in Washington D.C., and many other state DOTs and the FHWA were very excited about the memos. The approach used if not the exact content may become a model for other agencies. More info and links to download the policy memoranda are provided after the break.
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The ASCE Research Library is a comprehensive online tool for locating articles of interest across all disciplines of civil engineering. The Research Library provides you with unprecedented access to more than 40,000 full-text papers from […]