I came across this video that introduces DAT Instruments, an Italian Company that builds dataloggers for geotechnical construction such as grouting, jet grouting, soil mixing, diaphragm walls and more.
Terra Insurance is a top provider of professional liability insurance to geoprofessional organizations. This 5 minute video features Terra Vice President of Claims and Risk Management Lisa Gamblin, Esq. The idea is that by understanding what the precursors are to claims, you and your firm will be better equipped to avoid them.
Attention geotechnical engineering students hoping to get a job or an internship! If you haven't had any experience in the field, you NEED to watch this video before you go on any interviews! This video created by Dr. Jason DeJong and Dr. Ross Boulanger at UC Davis gives a great overview of the basics of geotechnical drilling and sampling. It was created in 2000, but it is still relevant today. My only comment is that the rope and cathead hammers are getting more and more rare in favor of the automatic trip hammers (or just auto-hammer if you prefer).
Now I'm not suggesting that you students try to pretend you have experience that you don't! Never lie in an interview! But at least if you have seen this video, you can ask intelligent questions and know what your prospective employer is talking about when they explain the field duties required for an entry-level geotechnical engineer or geotechnical engineering intern position. I know I knew virtually nothing about geotechnical drilling and sampling when I started my career.
Introduction to Geotechnical Drilling and Sampling Video
Normally when driven piles are used as deep foundation elements, there is a large amount of pile waste when the portion of the piles left sticking up out of the ground are cut off to the desired elevation. UK piling contractor, Balfour Beatty and Finnish company Junttan have created a system that attaches to piling rigs and cuts off precast concrete piles as low as about 4 inches from the ground surface. The cut pieces are then used as starter pieces for the next pile. Balfour Beatty calculates that each precast concrete pile delivered to the site represents approximately 90 to 130 pounds of CO2 released into the atmosphere. They estimate that implementing this system on two piling rigs to date will translate into 2,000 metric tons of reduced CO2 emissions per year. [Source: Construction Enquirer via ASCE SmartBrief. Image: Construction Enquirer]
Crux Subsurface is a unique drilling company, getting their start with limited and difficult access geotechnical drilling, but in recent years, they have branched out into micropile foundation design and construction. They frequently work for the power sector installing transmission line foundations in locations that most other companies couldn't access. This photo gallery is on a Power industry publication website, and showcases some of Crux' work. [Source: Check out the photo gallery at TDWorld via Crux Subsurface. Image: T&D World]
RST's new borehole profile sensor can measure the orientation of boreholes raked above horizontal, such as drain holes. Most other equipment is designed to use a wheeled probe and grooved casing. This sensor uses MEMS technology and rigid rods and is inserted into the hole. It can also be used to profile boreholes of different diameter or nominal plunge. Data is collected using RST's ultra rugged field PC which can connect via bluetooth. [Source: Read more and download a brochure at RST Instruments Ltd.. Image: RST Instruments]
Dr. Craig Benson of the University of Wisconsin delivered the 2012 Peck Lecture at the Geo-Institute’s Geo-Congress in Oakland. The GI just released a video of the lecture on their YouTube Channel. The title of his lecture was “Bentonite Barriers for Geoenvironmental Containment: Lessons Learned from Full-Scale Applications”. You can watch the lecture on the Geo-Institute YouTube channel.
The Geo-Institute has released the 2013 Terzaghi Lecture onto their YouTube channel. “Skip” Hendron, Professor Emeritus at University of Illinois at Urbana-Champaign presented his lecture on “Improving Dam Safety with Lessons Learned from Case Histories of Dam Failures and Unacceptable Dam Performance”. Go check out the video on the Geo-Institute's YouTube Channel.
Dimitrios at Deep Excavation posted an article last month about a new settlement method for helical piles that he is developing with Michael Perlow. The method is already showing promising results according to the article. It will ultimately be built into Deep Excavation's HelixPile software for analysis and design of helical piles, maybe it's already in there. [Source: Check out more at Deep Excavation. Image: Deep Excavation]
The 2013 H. Bolton Seed Lecture at Geo-Congress 2013 was given by Prof. Stephen Wright of UT Austin, a living geo-legend and one of the world's foremost experts on slope stability. His lecture is destined to be a classic, and was recently released on the Geo-Institute's YouTube channel. If you are a geotechnical engineer, make it a point to set aside the time to watch this lecture!
Geoengineer.org has launched a new GeoSoftware directory, sure to be the go-to resource for our industry. The complete revamp of their previous directory will allow software vendors to provide news and video related to their products, and allow visitors to provide ratings and submit questions to the geotechnical software vendors. [Source: Check out the new GeoSoftware database at Geoengineer.org. Image: Geoengineer.org]