Posts treating: "frontpage"
Friday, 29 April 2016
This is a great video from WSDOT visualizing all of the geotechnical instrumentation and survey monitoring being done in Downtown Seattle above the Bertha TBM for the Alaska Way Viaduct Replacement project. Soldata is the company WSDOT hired to manage the monitoring. I heard a great presentation by a Soldata representative and a member of the Seattle Tunnel Partners in charge of the instrumentation and monitoring from the contractor's side several years ago at an AEG conference. You can read [...]
I stumbled across a nice interview of Dan Brown, a recognized deep foundation expert and founder of Dan Brown and Associates, in a back issue of Pile Buck magazine. He discussed some of the large design-build contracts that they have been involved in, designing foundations for some of the biggest bridges in the Country. One of my takeaways was that he called himself and his colleagues 'foundation engineers' and pointed out that we shouldn't pigeon-hole ourselves as geotechnical engineers or [...]
Don't forget about the last two Keynetix webinars this month related to their popular and powerful HoleBase SI geotechnical software. The two remaining topics for this round of webinars are:Top Tips for Geological Modelling with AutoCAD Civil 3DThe Important Golden Rule of Data Entry â€“ Get Someone Else to Do It!Keynetix is a sponsor of GeoPrac.net. [Source: Find out more and get registered for the free webinars from Keynetix. Image:
The IHC Fundex 5600 is the newest and largest multifunctional foundation drill rig in Dutch equipment maker's line. This rig has a leader or mast that is 50 to (optionally) 56 meters in length (164-184 feet!). Amazingly, this huge mast can be erected by the machine itself without assistance from a crane. The rig can be used for drilling continuous flight auger or CFA piles, conventional drilled shafts, and driving precast concrete piles. You can find out more info at the manufacturer's IHC [...]
This project video seems a few years old, but it's relatively new on YouTube and it's a fantastic case study of the slick method of installing groundwater interception trenches using DeWind's remarkable one-pass trenching technology. Hill Air Force Base in Utah had been using jet fuel ignited on a mock aircraft to train firefighters. The jet fuel had leached into the soil and was reaching the shallow aquifer. The DeWind technology was used to install a drainage trench to intercept the [...]
Tunnel Business Magazine has released their annual report on the outlook of the Tunneling Industry. They poll a variety of tunneling industry professionals. Their consensus is that the growth rate of tunneling projects in north america is not as high as in other parts of the world. [Source: Read more about the expert's insights in Tunnel Business Magazine. Image: Tunnel Business
Check out this massive pile foundation for a wind turbine at the 402MW Veja Mate offshore wind farm. It weighs over 1,300 tons (2,866 kips) and is 7.8 meters in diameter (25.5 ft) and 82.2 meters long (270 feet). The wind farm will consist of a total of 67 6MW turbines founded on giant monopiles like this. According to Offshore Wind, the Veja Mate OWF is located 95 km northwest from the island of Borkum in the German North Sea. When fully operational in 2018, the farm will produce over 1.6 TWh [...]
Time to clear the queue a bit. Enjoy these gems! Pile Dynamics Releases Complimentary Update of GRLWEAP Program - Pile Buck Magazine - pile driving, marine construction, deep foundation North Salt Lake Passes Landslide Ordinance - Source: The Salt Lake Tribune via AEG Insider Rotting Oaks Lead to Hazardous Voids in Indiana's Mount Baldy Sand Dune - Source: Terradaily.com via AEG Insider Soldier pile excavations in Seattle designed with DeepEX - Source: DeepExcav Santa [...]
Geotechnical industry professionals are no doubt familiar with the awesome illustrations showing all manner of geotechnical construction methods and applications that are a unique part of Hayward Baker advertising and marketing. Without any fanfare, the iconic Hayward Baker calendar that features this artwork has celebrated a milestone of 20 years in 2016. It's so hard to explain to non-engineers what it is that geotechnical engineers do, all of our cool work is buried out of sight! This [...]
Pile Dynamics has updated their SPT Analyzer system of hardware and software used to calibrate hammers used for the geotechnical engineer's bread and butter - the standard penetration test or SPT. The hardware itself has been updated with a multi-touch interface, new color scheme options, and 'Smart Sensor' technology that automatically reads the rod instrumentation so that sensor calibration and other information is automatically read by the SPT analyzer. The software to process the data has [...]
So you've completed your field and laboratory geotechnical site characterization...now what? You write the report of course. This is the final video in a nice sequence of videos prepared by Terracon. Did you miss any? Go check out Terracon's site characterization page. [Source: Terracon YouTube Channel. Image:
The Bertha tunnel boring machine has resumed chewing away beneath Seattle after a 'suspension for cause' order from WSDOT shut it down in January following two safety incidents. The BTM began tunneling with some conditions in place late in February, and those conditions were lifted when the demonstration period ended on March 7. Bertha has now reached her next scheduled maintenance stop, having tunneled a total of 1,560 feet. [Source: WSDOT Alaskan Way Viaduct Replacement Project Page. [...]
The following four short courses will be taught by Prof. Pinnaduwa Kulatilake in Tucson, Arizona in May 2016 as given below. Dr. Kulatilake was one of my professors at the University of Arizona during my geological engineering program. If you have always been meaning to learn some rock mechanics to add to your geotechnical skill set, these courses would be a very good option.
2-Day course on Rock Fracture Geometry Characterization and Network Modeling in 3-D Including Validations [...]
The Redi-Rock Design Resource Manual or DRM has everything you would need to design a Redi-Rock retaining wall, including block sizes, design charts, construction details, and setback options. The manual also includes case studies and an installation guide and more. Watch the video below for more info. Download the updated manual or request a printed version at http://www.redi-rock.com/drm/ .
This is some very interesting first-person video of a landslide near Elk City, Idaho, complete with expletives. :) I can't say I blame the videographer, it's not every day you see a slope like that come down. Must have been quite an experience to be there! [Source: YouTube. Image:
Taiwanese investigators have arrested the developer of a 17-story apartment building that collapsed in an earthquake at the beginning of the month. Approximately 40 people were killed when the building collapsed, there were only two other deaths in the entire city. The charges are suspicion of criminal business misconduct resulting in fatalities. Mainland China has been notorious for shoddy construction practices, and those practices have been blamed for the death of thousands in Sichuan [...]
Fugro released their 2015 Fiscal Year results, and the headline is 'Strong cash flow in continuing challenging oil and gas market'. The Dutch company's biggest market sector is oil and gas, and they are forecasting continued challenges this year with over-supply. The numbers show a drop in revenue of 17 percent from 2014 to 2015. Among the ways they managed the downturn is to sell or lease back two of their geotechnical drilling vessels, but they are also focusing on growing other market [...]
The New York DOT has been working on a geotechnical design manual (GDM) since at least 2012. It is a very detailed document that covers pretty much every possible geotechnical aspect of a transportation project. It would be a valuable resource for any geotechnical engineer. Some chapters are still marked draft, but I like their transparency about what has been officially approved by the DOT and what is still under review. [Source: Check out the GDM of the New York DOT. Image:
Keynetix is preparing to restart their popular free webinar series. The theme for 2016 is “Transforming Your Geotechnical Data Journey in Small Steps.” The webinars will be every Friday at 12 pm EST for North American Customers and those using ASTM standards, and Friday at 13:00 GMT for other customers using BS/AGS standards.
This Friday, February 12th, the webinar title will be “Maximize the Value of your Geotechnical Data Archive Using HoleBASE SI”. The [...]
The folks at LogItEasy.com have put together a very useful, free online tool for converting Munsell color codes that you might use in the field into the actual color names. This functionality is also built into their interface for electronic field logging and log creation. [Source: Go check out the free Munsell Soil Color tool at LogItEasy.com. Image: