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Content
Articles
Side Hill Retaining Walls - Part 1 PDF Print E-mail
Articles - Retaining Walls
Written by Randy Post   
Thursday, 12 March 2009 12:45

Completed side-hill retaining wall for the SR 264 Second Mesa project in Arizona. Photo by Bharat Khandel, ADOT by way of NCS Consultants, LLCSide-hill retaining walls refer primarily to fill-walls built partway down the sides of an existing slope or embankment. They are encountered in roadway and rail widening projects as well as site development but usually in steep terrain. This article provides an overview of the problems, failure mechanisms, investigation approaches, analysis tools and wall type alternatives for these structures. Click through to read the article!

Last Updated on Thursday, 02 April 2009 13:36
 
Geotechnical Construction for a Rail Spur at a Rock Quarry PDF Print E-mail
Articles - Retaining Walls
Written by W. Robert Thompson, III, P.E.   
Thursday, 04 September 2008 02:44

Our first article from Robert Thompson with Dan Brown and Associates. A project profile of a challenging project invoving a railroad spur for a quarry. It involved ground improvement, soil nailing, and MSE walls.

Last Updated on Wednesday, 22 October 2008 12:51
 
Geotagging Images for Geoengineers PDF Print E-mail
Articles - Software and Spreadsheets
Written by Randy Post   
Wednesday, 09 July 2008 17:47
Geotaggng images

Geotagging is the process of adding geographic metadata (ie. latitude, longitude and sometimes elevation and bearing) to digital photos or other media. In this article, I will examine the equipment needed, the software to help with the process and what you can do with your geotagged photos.

Last Updated on Monday, 15 September 2008 14:10
 
Transient Stability Analyses with SLOPE/W 2007 PDF Print E-mail
Articles - Slope Stability
Written by Nate Hekman   
Wednesday, 28 May 2008 04:49
Transient Stability Analyses with SLOPE/W 2007

Nate Hekman discusses transient stability analyses with SLOPE/W 2007. At the end of the article, he refers the reader to a downloadable example problem for a rapid drawdown condition in both PDF and GSZ (GeoStudio 2007) format.

Last Updated on Monday, 15 September 2008 14:13
 
VBA and Excel for Engineers and Scientists - Part 2 PDF Print E-mail
Articles - Software and Spreadsheets
Written by Randy Post   
Tuesday, 20 May 2008 11:29

In this long awaited second article in the series, I will dive into the meat of the VBA programming language, including code containers, data types, variables, math operators, built-in functions, flow control, and even debugging.. In the end, you should be able to code some fairly complex things including custom worksheet functions that you can use in your spreadsheet just like a regular formula. Also in this article I give you a sample spreadsheet with some useful utilities that you can use right away.

Last Updated on Sunday, 01 February 2009 23:48
 
Embankment Dams in Fissure Risk Zones PDF Print E-mail
Articles - Dams and Flood Control
Written by Ravi Murthy   
Thursday, 27 September 2007 08:32
Embankment Dams in Earth Fissure Risk Zones - A Regulator's Dilemma

Is it possible to safely rehabilitate dams in earth fissure risk zones to continue to provide economical flood protection to the public, or does the risk of dam failure due to an undetected fissure present too great a threat to the public? Read the article to find out the view of the Arizona Department of Water Resources.

Last Updated on Monday, 15 September 2008 14:16
 
Aesthetic Blasting PDF Print E-mail
Articles - Earthwork, Embankments and Blasting
Written by Robert Cummings   
Monday, 27 August 2007 18:08
HIGHWAY CUT SLOPES IN ROCK:SPECIALIZED EXCAVATION AND ENHANCEMENT TECHNIQUES

Bob Cummings of Saguaro GeoServices, Inc. discusses the development and implementation of aesthetic blasting and rock excavation techniques for highway cut slopes in sensitive and scenic infrastructure settings.

Last Updated on Monday, 15 September 2008 14:16
 
gINT Professional Software Explained PDF Print E-mail
Articles - Software and Spreadsheets
Written by Randy Post   
Sunday, 24 June 2007 19:30
gINT Professional Software screenshot

Powerful Geo-Data Management

An overview of the gINT Professional software program, a tool for boring and well log creation, fence diagrams, laboratory reports... and a whole lot more than people realize.

Last Updated on Monday, 10 November 2008 10:25
 
LRFD for Geotech - Note 2 PDF Print E-mail
Articles - Standards and Specifications
Written by Naresh C. Samtani   
Wednesday, 20 June 2007 19:26

Naresh C. Samtani, PE, PhD has contributed his second in a series of articles on LRFD for geotechnical engineering titled "LRFD for Substructures - Concept of Failure and Reliability Index".

Last Updated on Monday, 15 September 2008 14:27
 
The Ultimate Geotechnical Engineering Challenge PDF Print E-mail
Articles - Miscellaneous
Written by Ed Nowatzki   
Monday, 28 May 2007 18:30
The Lunar Module landing pad

Most people are aware that Apollo 11 was the NASA where man first set foot on the Moon. But before they could set foot on it, they had to set the landing pads of the LM there! How did they come up with geotechnical soil parameters for the design of the LM's footpads? How did they determine a bearing capacity of lunar soil? Click through for this facinating article that I hope you will share with your colleagues.

Last Updated on Thursday, 12 February 2009 01:09
 
LRFD for Geotech - Note 1 PDF Print E-mail
Articles - Standards and Specifications
Written by Naresh C. Samtani   
Monday, 23 April 2007 09:01

GeoPrac.net is very pleased to present this article on Load Resistance Factor Design (LRFD) for Bridge Substructure Design by Naresh C. Samtani, PE, PhD. This will hopefully be the first in a series of technical notes by Naresh on this topic. He is the lead instructor for the Ryan R. Berg and Associates, Inc. team of instructors for the LRFD Course for design of substructures offered through the FHWA's National Highway Institute (NHI).

Last Updated on Monday, 15 September 2008 14:30
 
VBA and Excel for Engineers and Scientists PDF Print E-mail
Articles - Software and Spreadsheets
Written by Randy Post   
Wednesday, 04 April 2007 20:22
vba toolbar

Visual Basic for Applications or VBA used in conjunction with Microsoft Excel is a tool that many scientists and engineers have yet to take full advantage of. This article is the first in a series designed to provide you with the basic understanding of how to use VBA and Excel in your practice.

Last Updated on Tuesday, 04 November 2008 23:08
 
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