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by Stratigraphy.net
New from Snet: Lithologs, a new tool to create lithological/sedimentological logs online..

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Thursday, 23 June 2016

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Create borehole logs in your browser, for free 

GeoPrac.net [2016-06-23 16:08:50]  recommend  recommend this post  (36 visits) info
Simple, fast and intuitive web based software. No Licence, No Setup, No cost, Start Immediately. If you've been producing borehole and well logs in traditional ways through desktop database applications, such as gINT and WinLog, or even Excel! we would recommend you try the latest version of ESlog: bore log presentation software. No installation or credit card are required. ESlog is simple, fast and intuitive web based software for the reporting of boring and well log data with no requirement [...]

Innovative Micropile Construction with DTH System 

GeoPrac.net [2016-06-23 09:07:56]  recommend  recommend this post  (11 visits) info

 US
Our friends at Deep Excavation posted about an interesting micropile case study in Northern Baltimore County for a bridge replacement project. The project consisted of 38 Micro Piles; 7” OD X 38 ft. deep including a 7 ft. rock socket, installed on a 3/1 batter, load tested to 272,000 lbs. What caught my attention is the down the hole hammer system used for installing the micropiles. The system uses a ring bit to install the casing and allow the drill string to continue beneath the bedrock [...]

Video: MIC - Maccaferri Innovation Center 

GeoPrac.net [2016-06-23 08:57:20]  recommend  recommend this post  (11 visits) info

 IT
Maccaferri has a unique research facility, the Maccaferri Innovation Center (MIC), located in Bolzano, Italy. Maccaferri was founded based on their invention of the now ubiquitous gabions, but are now known worldwide as experts in and suppliers of all manner of erosion protection products, geosynthetics, rockfall fences and rockfall meshes, debris flow barriers, and much more. The objectives of the MIC are:Definition of new products and / or innovative solutions.Analysis of the implications [...]

A 1-Minute 'Rock Avalanche' 4,800 Years Ago In Zion National Park 

GeoPrac.net [2016-06-14 09:04:29]  recommend  recommend this post  (15 visits) info

 KM,US
Imagine the scene 4,800 years ago when a rock avalanche nearly 2 km long buried much of the Zion Valley in a matter of 90 seconds, creating a dam on the Virgin River that flooded essentially the entire floor of the canyon that millions of visitors enjoy every year. The researchers that analyzed this event are in the Geohazards group of the University of Utah led by Dr. Jeff Moore. Dr. Moore happens to be an old classmate of mine from the geological engineering program at the University of [...]

Keynetix' Roger Chandler delivers Sowers Symposium State of the Practice Lecture 

GeoPrac.net [2016-06-14 09:03:32]  recommend  recommend this post  (11 visits) info

 US
Roger Chandler of Keynetix was the State of the Practice lecturer at this year's Sowers Symposium at Georgia Tech to commemorate the life of George F. Sowers. Roger's lecture was titled 'Transforming Geotechnical Data' discussed the way different countries value geotechnical data. Keynetix is a sponsor of GeoPrac.net. [Source: Read more about the evening on the Keynetix website. Image:

Gotthard tunnel, world's longest, opens in Switzerland 

GeoPrac.net [2016-06-06 09:41:45]  recommend  recommend this post  (15 visits) info

 CH,
The Swiss and many other European dignitaries celebrated the opening of the World's longest and deepest tunnel last week, the Gotthard Base Tunnel, after 17 years of construction. The tunnel beneath the Swiss Alps is 57-kilometers long (35-miles long) reaching a depth of 2,300 meters (7,545 feet, almost 1.5 miles). The tunnel will create a high-speed rail link between northern and southern Europe. Trains will travel the tunnel, which runs between the towns of Erstfeld in the north and Bodio in [...]

Nicholson Begins Chemical Grouting Work on Wilson Classical High School in Long Beach 

GeoPrac.net [2016-06-06 09:26:51]  recommend  recommend this post  (10 visits) info

 US
GeoPrac sponsor Nicholson Construction has started a chemical grouting project in Los Angeles at the Woodrow Wilson Classical High School to treat potentially liquefiable soils beneath the building. This $2 million project is part of a larger $21.1 million project to upgrade the infrastructure in the auditorium and adjacent areas. Nicholson will drill vertical, horizontal and inclined holes at depths of 14 to 24 feet beneath the structure and inject the chemical grout using a Tube-a-Manchette [...]

Video: DeWind One-Pass Trenching Animation of a Collection Trench 

GeoPrac.net [2016-06-06 09:19:15]  recommend  recommend this post  (9 visits) info
,[Editor] From their video description: [/Editor]DeWind One-Pass Trenchers can install complete DEEP Groundwater Collection Trench Systems in a Single Pass Under the Groundwater Table! No Open Excavations-No Dewatering - No Pumping- No Treating discharge water- No Sheeting or Shoring- minimal spoils....Fast and Safe installs up to 50 below grade. [Source: YouTube. Image:

Keynetix Appoints PacifiCAD as a North American Specialist Partner 

GeoPrac.net [2016-06-01 16:43:13]  recommend  recommend this post  (27 visits) info

 US
Redditch, UK 17th May 2016 - Keynetix, developers of geotechnical BIM software, have appointed PacifiCAD as a Specialist Partner in the USA covering the North West. PacifiCAD are a leading Autodesk reseller. They have a wide wealth of industry knowledge, including specialisms in civil infrastructure utilising a team of seasoned Autodesk Certified Technical Professionals. They supply their customers with unmatched technical support, implementation, data management and training to help them [...]

New Specialty Geotechnical Contractor in North America 

GeoPrac.net [2016-06-01 09:58:07]  recommend  recommend this post  (21 visits) info

 US,
There is a new player in the ground engineering and specialty geotechnical construction market in North America...well, sort of. Quanta Subsurface is a collection of (at present) 9 specialty contractors all owned by Quanta Services, a publicly traded EPC company specializing in the Electric Power and Oil and Gas industries. Many of these companies have been around for some time in their various markets, firms like Crux Subsurface. With the formation of Quanta Subsurface, it appears that they [...]

Video: Moving 7 Million Cubic Yards - Calaveras Dam Replacement Project Timelapse 

GeoPrac.net [2016-05-20 07:05:23]  recommend  recommend this post  (11 visits) info

 US
This is a pretty remarkable 4-year time-lapse video of the construction of a new spillway as part of the Calaveras Dam replacement project. [Source: SFWater Power and Sewer YouTube Channel via Hat tip to my buddy Wayne Harrison. Thanks, Wayne!. Image:

Geo-companies in ENR's 2016 Top 500 Design Firms 

GeoPrac.net [2016-05-17 07:52:15]  recommend  recommend this post  (16 visits) info

 US,
ENR's annual top 500 design firms list is out. These rankings are based on revenue for design services in the previous calendar year. I was curious how the various firms that are strong in geotechnical / geological related services rank. I included firms that self-identified as geotechnical firms, as well as engineering firms that I know to have a strong geo emphasis. I'm sure there are some that I missed. I also included some of the major A&E firms that provide these types of services. I [...]

Webinar: gINT Geotechnical Data Management and Reporting 

GeoPrac.net [2016-05-11 09:10:19]  recommend  recommend this post  (16 visits) info

 BE,US
Join Katie Aquilar, Bentley Systems Geotechnical Product Engineer, to learn how gINT can help you increase productivity with centralized data management and reporting for geotechnical subsurface reporting. Streamline processes, with accessible, inter-operable data, for subsurface reporting for soils, borelogs, lab tests, and more. Discover how gINT Logs, gINT Professional, and gINT Professional Plus can help with data management and reporting of your geotechnical and geoenvironmental data.In [...]

Video: Inside tunneling under the Alaskan Way Viaduct 

GeoPrac.net [2016-05-11 09:04:12]  recommend  recommend this post  (13 visits) info

 US,IN
From WSDOT's video description:After nearly a week of tunneling under the Alaskan Way Viaduct, crews are steadily continuing Bertha's underground drive towards downtown Seattle. This video gives you a behind-the-scenes glimpse into how the new tunnel is being built, showcasing the complex operations involved in this project. Massive concrete ring segments are transported to Bertha's segment erector where they are lifted into place, allowing the machine to push forward while the excavated soil [...]

DFI Accepting Scholarship Applications for Students in Geotechnical and Foundation Engineering 

GeoPrac.net [2016-05-10 07:41:05]  recommend  recommend this post  (14 visits) info

 US
The Deep Foundations Institute is accepting scholarships for undergraduate and graduate students in geotechnical engineering or foundation engineering at a U.S. college or university. The at-large scholarships range from 2,000 to 5,000. For more information and to apply, visit dfitrust.org. Hurry, the deadline is May 16! [Source: Deep Foundations Institute. Image:

Video: Monitoring the ground and buildings during SR 99 tunnel construction 

GeoPrac.net [2016-04-29 08:00:03]  recommend  recommend this post  (9 visits) info

 US
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 [...]

Big Design Build Projects with Dan Brown and Associates 

GeoPrac.net [2016-04-29 07:31:53]  recommend  recommend this post  (9 visits) info

 AU
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 [...]

Two More Keynetix Webinars This Month 

GeoPrac.net [2016-04-18 07:57:22]  recommend  recommend this post  (12 visits) info
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 – 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:

Video: IHC Fundex F5600 Foundation Drill Rig, 56 meters high! 

GeoPrac.net [2016-04-18 07:48:20]  recommend  recommend this post  (11 visits) info

 NL
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 [...]

Video: DeWind One-Pass Trenching - Hill AFB Contamination Project 

GeoPrac.net [2016-04-18 07:21:27]  recommend  recommend this post  (12 visits) info

 US
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 [...]
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