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Content
Available Resources
Scour at Bridge Foundations on Rock PDF Print E-mail
Written by Randy Post   
Monday, 23 July 2012 05:27
Scour at Bridge Foundations on Rock

TRB’s National Cooperative Highway Research Program (NCHRP) Report 717: Scour at Bridge Foundations on Rock presents a methodology for estimating the time rate of scour and the design scour depth for a bridge founded on rock. The report also includes design and construction guidelines for application of the methodology. [Source: TRB. Image: TRB]

 
Ground Engineering's iPad edition is now live PDF Print E-mail
Written by Randy Post   
Friday, 20 July 2012 01:31

Ground Engineering Magazine App

If you have an iPad, you can now read Ground Engineering magazine for free! GE Magazine is one of the industry's most respected trade publications, affiliated with the UK's New Civil Engineer organization. The app is made available thanks to sponsorship from Allu. I've tried it out, and the format is excellent, the text is easy on the eyes, the figures are out of the way, but accessible with just a tap. Even the advertisements are nice, partially interactive but not over the top. Although they call it an app, it shows up on your bookshelf app. You can follow the link to the NCE website below, or jump straight to the GE Magazine App on iTunes if you are reading this on your iPad. [Source: New Civil Engineer. Image: iTunes]

Last Updated on Saturday, 21 July 2012 11:46
 
Seattle breaks ground on S.R. 99 tunnel PDF Print E-mail
Written by Randy Post   
Wednesday, 18 July 2012 14:57
SR 99 tunnel concept

FHWA Director Mendez was on hand last month as WSDOT broke ground on the SR 99 tunnel, also known as the Alaskan Way Viaduct Replacement Tunnel. The project is expected to cost upwards of $2B and be completed in 2015. [Source: Roads And Bridges via ASCE SmartBrief. Image: WSDOT]

 
Cost-Effective and Sustainable Road Slope Stabilization and Erosion Control PDF Print E-mail
Written by Randy Post   
Sunday, 08 July 2012 20:02

TRB Publication: Cost-Effective and Sustainable Road Slope Stabilization and Erosion Control

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 430: Cost-Effective and Sustainable Road Slope Stabilization and Erosion Control presents information on cost-effective and sustainable road slope stabilization techniques, with a focus on shallow or near-surface slope stabilization and related erosion control methods used on low-volume roads.

The report address topic planning, site investigation, erosion control techniques, soil bioengineering and biotechnical techniques, mechanical stabilization, and earthwork techniques. [Source: TRB. Image: TRB]

Last Updated on Saturday, 07 July 2012 14:56
 
Getting Started with gINT Rules Using a New gINT Add-In PDF Print E-mail
Written by Randy Post   
Friday, 01 June 2012 12:30

The Bentley gINT team has put together a gINT Rules add-in that will help you write your own gINT Rules code. The Add-In is gra005 (note the 'a') found on the Bentley Geotechnical Wiki.  It will prompt you with a series of dialog boxes to guide you through the process of setting up a gINT rules procedures, then it will create the code skeleton for you.  There are also several videos that will give you an overview of how the add-in works. These videos are:

[Source: Be Communities by Bentley]

 

Last Updated on Sunday, 10 June 2012 23:03
 
Rankine Lectures free to access  PDF Print E-mail
Written by Randy Post   
Thursday, 31 May 2012 15:02
Rankine lecturer

The UK's Institute of Civil Engineers (ICE) is making 10 Rankine Lecture Papers available for free until June 16, 2012. The British Geotechnical Association (BGA) hosts the very prestigious Rankine Lecture each March. The lectures are then published in the Géotechnique Journal. You can also watch the last 10 lectures at www.cpdlectures.com, a joint venture between ICE and the BGA. [Source: ICE Virtual Library]

 
Geotechnical Information Practices in Design-Build Projects PDF Print E-mail
Written by Randy Post   
Thursday, 31 May 2012 14:58
NCHRP Synthesis Report 429: Geotechnical Information Practices in Design-Build Projects

TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 429: Geotechnical Information Practices in Design-Build Projects addresses how states use geotechnical information in solicitation documents and contracts for design-build highway projects.

The report examines current practices regarding the allocation of geotechnical risk and the level of geotechnical information provided with bid documents, the scope of geotechnical information required after contract award, geotechnical-related performance testing during construction, and contract provisions related to geotechnical design and construction. [Source: TRB. Image: TRB]

 
Cool 4D Video Simulation of Groundwater Contamination Plume Migration PDF Print E-mail
Written by Randy Post   
Wednesday, 09 May 2012 22:08

This video from RockWare shows a 4D Google Earth tour of a simulated groundwater contamination plume migration created using several tools in their RockWorks software package.

 
Rockfall: Characterization and Control PDF Print E-mail
Written by Randy Post   
Tuesday, 08 May 2012 14:36

TRB Rockfall Characterization and Control

This fall, TRB will release Rockfall: Characterization and Control, which will address rockfall hazard identification and evaluation, investigation process, mitigation options, and maintenance and management programs.

The 400 page publication will include a DVD with video clips of rockfall field tests and several historical movies documenting rockfall field activities.

Because of the expected high demand for this report, TRB is taking advance pre-publication orders. Shipping costs will be waived for all orders received prior to October 1, 2012. Click the link below for ordering info. [Source: TRB. Image: TRB]

Last Updated on Tuesday, 08 May 2012 21:42
 
Seismic Design of Geosynthetic-Reinforced Soil Bridge Abutments with Modular Block Facing PDF Print E-mail
Written by Randy Post   
Sunday, 29 April 2012 16:50
Seismic Design of Geosynthetic-Reinforced Soil Bridge Abutments with Modular Block Facing

Text from TRB: TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 187: Seismic Design of Geosynthetic-Reinforced Soil Bridge Abutments with Modular Block Facing explores design methods and construction guidelines for using geosynthetic-reinforced soil (GRS) systems in bridge abutments in seismically active regions. [Source: TRB. Image: TRB]

 
Practices and Procedures for Site-Specific Evaluations of Earthquake Ground Motions PDF Print E-mail
Written by Randy Post   
Thursday, 19 April 2012 14:41
NCHRP Synthesis 428 - Practices and Procedures for Site-Specific Evaluations of Earthquake Ground Motions

A new synthesis report by the NCHRP aims to identify the current state of the practice in site-specific earthquake design.

TRB’s National Cooperative Highway Research Program (NCHRP) Synthesis 428: Practices and Procedures for Site-Specific Evaluations of Earthquake Ground Motions identifies and describes current practice and available methods for evaluating the influence of local ground conditions on earthquake design ground motions on a site-specific basis. The report focuses on evaluating the response of soil deposits to strong ground shaking.
[Source: TRB/NCHRP. Image: TRB/NCHRP]

 
Giroud-Han Method for Geosynthetic-Reinforced Unpaved Roads PDF Print E-mail
Written by Randy Post   
Monday, 16 April 2012 00:13

G-H_method

A 2004 paper by J.P. Giroud and Jie Han provides a practical design method for geosynthetic-reinforced unpaved roads.  The method outlined in the paper was very detailed, and the authors wanted to provide a summary for the benefit of practitioners who wish to use the method.  Additionally, some equations in the paper are generic and some have been calibrated for specific geosynthetics (the Tensar BX1100 and BX1200 biaxial geogrids, with new work by another author applying to Tensar’s Triax geogrid) and some practitioners were not clear on this matter.  Finally, the authors stress the need for calibration of the method when using other geosynthetics.  These three issues were addressed by a 2-part series in Geosynthetics Magazine by Giroud and Han.  You can read the first part and the second part at GeosyntheticsMagazine.com. [Image from Geosynthetics Magazine]

Last Updated on Monday, 16 April 2012 00:14
 
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