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New FHWA Soil Nail Manual Addresses LRFD, Hollow Bars
Good evening from Barcelona, Spain. I am witting to you because of I am le
Engineering Geologists vs Geological Engineers vs Geotechnic
Geological engineer from Spain (looking for job smiley geoengineer.martin@gmail
A Whole Lotta Shakin' Goin' On: Center for Geotechnical Mode
Randy, While the UC Davis lab is impressive I believe the USACE Centrifuge
Foundations and Geotechnical Engineering for the Burj Dubai
Hi, I'm basically civil engg graduate now pursuing the masters in Engg. m
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Oregon car thief's escape plot foiled by landslide PDF Print E-mail
Written by Randy Post   
Thursday, 07 February 2013 16:25
Oregon car thief's escape plot foiled by landslide

A thief stole a taxi at knife point in Brookings, Oregon recently, and then tried to escape when a police officer attempted to pull him over in the stolen vehicle. He ignored signs of a road closed due to a landslide, but quickly found out that the signs were no joke as his car collided with the mud, rock and debris from the landslide blocking the road. He was taken into custody without further incident. [Source: KOMO News. Image:]

Geotechnical Asset Management, Implementation Concepts and Strategies PDF Print E-mail
Written by Randy Post   
Thursday, 31 January 2013 23:23

Geotechnical Asset Management - Implementation Concepts and Strategies by Central Federal Lands of the FHWA

The Central Federal Lands (CFL) division of the FHWA has published a new manual on Geotechnical Asset Management. Here's the abstract:

The purpose of transportation asset management is to meet life-cycle performance goals (safety, mobility, preservation, economics, and environmental aspects) through the management of physical assets in the most cost-effective manner. Geotechnical asset management can be incorporated into the broader practice of transportation asset management. Currently, most agencies manage geotechnical features on the basis of "worstfirst" conditions, reacting to failures and incurring significant safety, mobility, environmental, and intangible costs. The goal of geotechnical asset management is to implement project planning and selection on the basis of "most-at-risk" for the asset class with consideration of collective and site specific risks throughout the life cycle. Geotechnical features that can affect the performance of a transportation system include retaining walls, unstable slopes, rockfall sites, embankments, and tunnels. These features can be treated as physical assets of the system and managed like other assets of the system. While not every geotechnical feature exists in agency, those that do can be combined into a single asset class to simplify asset management procedures. Although likely on the high end of expectation, some studies indicate a life-cycle cost savings of up to 60 to 80 percent after the implementation of geotechnical asset management. The geotechnical asset management plan should be based on agency performance goals and integrate risk and life-cycle analysis. It is important to note geotechnical asset management will only be successful when all features that create risk are included. Risk management allows for the probability and consequences of events to be evaluated, which is essential for the integration with agency performance goals. Federal Land Management Agencies can implement geotechnical asset management with a relatively modest investment and using existing resources to assess geotechnical features in a multi-tier, riskbased approach. There is an agency cost associated with inaction on geotechnical asset management.

[Source: Central Federal Lands Highway Division (CFL). Image: CFL]


Last Updated on Friday, 01 February 2013 06:30
Dataforensics shows off early version of pLog 7 on Rugged Tablet PDF Print E-mail
Written by Randy Post   
Tuesday, 15 January 2013 23:26
Scott Deaton of Dataforensics shows off an early version of pLog v7 software on a Panasonic Toughpad

GeoPrac sponsor Dataforensics just tweeted a photo of their President, Scott Deaton showing off an early version of their pLog v7 software running on a Panasonic Toughpad ruggedized tablet. I know they are working hard on the upgrade which will bring pLog to the Android platform. The new rugged tablets from Panasonic open up a whole new world for electronic borehole and well logging software. Be sure to follow @Dataforensics1 for the latest info from them. [Source: Twitter. Image: Twitter]

New Rock Toppling Software coming from Rockscience PDF Print E-mail
Written by Randy Post   
Wednesday, 09 January 2013 16:59
RocTopple Beta version screenshot

Geological and geotechnical engineering software vendor Rockscience, makers of Dips, Swedge, Slide, Examine3D and other products is entering beta testing for their newest product, RocTopple to analyze the rock toppling failure mode. According to RockScience, RocTopple will 'complete our suite of rock slope stability analysis software'. Follow the link below to learn more or signup to be a beta tester. [Source: Rockscience. Image: Rockscience]

SuperGIS Engine 3.1 Beta Version Released PDF Print E-mail
Written by Randy Post   
Monday, 10 December 2012 23:24
SuperGIS Engine 3.1 Beta is released

The new SuperGIS Engine 3.1 Beta allows Windows developers to incorporate GIS functionality into their programs using COM components. From their press release:

As the core development of SuperGIS software, SuperGIS Engine 3.1 can be embedded into programming language under Windows developing environment to integrate with other systems and enhance efficiency in system development. SuperGIS Engine 3.1 provides 32-bit and 64-bit developing components that enable developers to create GIS applications they need in common development environments such as Visual Studio 2005/2008/2010 Visual Basic, VB.NET, Visual C# and so on.

The product page provides info on how to get a free trial version. [Source: Image: SuperGIS Engine 3.1 Beta is released]

No earth pressures, please! PDF Print E-mail
Written by Randy Post   
Monday, 10 December 2012 23:23
Deep excavation software

Deep Excavation, LLC has an excellent blog post on how geotechnical engineers should provide geotechnical parameters for use by a shoring designer. Mr. Konstantakos notes that most of us geotechnical engineers provide only lateral earth pressure parameters, but there are a number of problems with that approach. Today's shoring designs are much more complex, requiring staged analyses and service limit analyses that you simply can't do if all you have are basic parameters. So what should you provide in your geotechnical reports? Go read the post to find out! [Source: Deep Excavation. Image:]

Introducing Google Earth 7 PDF Print E-mail
Written by Randy Post   
Wednesday, 05 December 2012 05:34

3D Imagery for Austin Texas in the New Google Earth 7

Google released Google Earth 7 last month. The major new feature is their 3D Imagery feature that allows for scary realistic 3D views of cityscapes...until you zoom in tight. Another new feature is a tour guide of famous landmarks. Read more at Google Earth Blog. [Source: Google Earth Blog. Image: Google Earth Blog]

Last Updated on Tuesday, 04 December 2012 21:50
Geotechnical construction methods to control contaminated soil and groundwater PDF Print E-mail
Written by Randy Post   
Wednesday, 28 November 2012 23:26
Contaminated soil remediation by Moretrench

Excavations in an urban environment often encounter contaminated soil and/or groundwater. GeoPrac sponsor Moretrench is an expert in geotechnical construction methods for preventing the contamination from entering or leaving a site. In a recent blog post, Moretrench highlighted four construction techniques for meeting these objectives. They are: slurry trenches, jet grouting, permeation grouting, and ground freezing. [Source: Moretrench GeoBlog. Image: Moretrench]

Sample Guide Specifications for Construction of Geosynthetic Reinforced Soil-Integrated Bridge System (GRS-IBS) PDF Print E-mail
Written by Randy Post   
Tuesday, 20 November 2012 22:48
GRS-IBS Guide Specifications

This guide was issued to provide guidelines for construction of the geosynthetic reinforced soilintegrated bridge system (GRS-IBS). Refer to Geosynthetic Reinforced Soil Integrated Bridge System Interim Implementation Guide for GRS-IBS design and construction guidelines. This guide serves as the technical basis for agency-developed standard specifications. Local experience and practice should be incorporated as applicable. [Source: FHWA. Image: FHWA]

Geotechnical Activity Index PDF Print E-mail
Written by Randy Post   
Wednesday, 14 November 2012 15:33

Deep Excavation's Geotechnical Activity Index chart as of October 2012

Deep Excavation, the makers of shoring design software, DeepXcav, are reporting on the Geotechnical Activity Index, that they describe as:

The geotechnical activity index is a new index that reports on the geotechnical potential in each State within the US. The index takes into consideration the geotechnical activity and population in each state. The main objective is to track changes over time in geotechnical and foundation works.

This is some really interesting data to look at. I'm curious what the source of the info is. Maybe we can get Deep Excavation Founder and CEO Dimitrios Konstantakos to give us a little hint! [Source: Deep Excavation. Image: Deep Excavation, LLC]

Last Updated on Wednesday, 14 November 2012 22:37
APE develops Helical Pile systems PDF Print E-mail
Written by Randy Post   
Thursday, 08 November 2012 23:21
APE large diameter helical piles, a relatively new deep foundation alternative

Well-known pile hammer manufacturer APE has purchased technology for driving and coupling large diameter helical piles that could help make this technology more mainstream. Rather than pounding the pile into the ground, the steel drill pipe casing is rotated using patented couplers in a way that reminds me of a giant socket wrench or an Allen wrench. The base of the pile can be post-grouted, or grouted during installation. APE notes that this technology is ideal for environmentally sensitive areas where pile driving is not an option. Piles up to 42 inches in diameter have been successfully installed and load tested. [Source: APE News. Image: APE]

Two November Webinars from Maccaferri: Advancing Geosynthetics and Hydraulic Applications PDF Print E-mail
Written by Randy Post   
Monday, 05 November 2012 15:21
I've never seen gabions and reno mattresses used like this...pretty amazing.

Maccaferri, a manufacturer of geogrid, gabion, rockfall protection, and other geoconstruction products is offering a series of webinars. On November 8, the topic will be 'Advancing Maccaferri Geosynthetics'. On November 15, the topic will be 'Gabions and Reno Mattresses in Hydraulic Applications'. Geosynthetica has more info on the webinars at the link below. [Source: Image: Maccaferri via]

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