Novo Tech Software, Ltd. is a geotechnical software company based in Vancouver, BC, Canada. They have an impressive and always expanding collection of geotechnical software products that include: NovoSPT – With over 265 SPT Correlations […]
If you are at Geo-Frontiers 2011, say hi to these GeoPrac.net sponsors, and let them know what you think about GeoPrac because it is their support that keeps me going! Bentley (gINT) – Booth 919 […]
The Geo-Institute of ASCE is currently hosting the Geo-Frontiers 2011 conference in Dallas, Texas. I was scheduled to attend, but had to cancel the trip at the last minute. But I’ll still do my best […]
A deadly magnitude 6.3 earthquake struck Christchurch, New Zealand on February 22, killing at least 147 and with around 200 still missing. Many buildings have been badly damaged or destroyed and residents also had to deal with large quanities of mud and water which was a result of the liquefaction. The same region was affected by a 7.1 magnitude quake in September of 2010. That earthquake was centered deeper and farther from the metropolitan area so there were fewer casualties and less damage. But many buildings that had recently been repaired, or were even still under repair were devastated once again. Some early reports were calling this earthquake an aftershock of the September earthquake, but maps I’ve seen (at right) show pretty clearly it was a different fault segment that ruptured during this earthquake. I have a collection of links below that might be of interest. My heart goes out to the people of New Zealand affected by this disaster.
Read on for updates to ASTM standards related to geotechnical engineering, materials testing and related disciplines for the month of February, 2011. Standards associated with concrete aggregates and addmixtures / additives have been updated, as have several standards related to coring, sampling and testing of soil-lime mixtures.
Up until recently, the biggest steel H-Pile section you could get was an HP14 weighing up to 177 lb/ft. But ENR reports that manufacturers are now rolling steel H-Piles in 16 and 18 inch depths. […]
7 February 2011 – Strata Systems is offering a free software tool, StrataSlope™, to help in the design of reinforced steep slopes and walls. The software includes material estimating, limit equilibrium analysis, direct sliding stability […]
For a wind farm near Lawton, OK, many of the foundations consist of rock sockets 19 feet in diameter, 20 feet deep. The rock was blasted to presplit the holes and facilitate excavation. The bedrock […]
[Editor] The pile driving analyzer or PDA is used to measure the response of piles during driving. It was originally developed to analyze pile drivability, but is sometimes used as a substitute for pile static load tests to determine . Mr. Scott A. Barnhill, P.E., Executive Vice President of consulting firm GeoEnvironmental Resources, Inc. located in Virginia Beach, Virginia has seen PDA being used and misused over his 33-year career. In this article, Mr. Barnhill describes pitfalls in relying solely on the PDA for pile capacities, and also describes what PDA is good at and how it can be used successfully. [/Editor]
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