According to James Miller of GeoEngineers, Inc., the most significant recent technological advances in geotechnical engineering are LiDAR, GIS-based data management, and advanced analysis of soil-structure interaction. Read his article at DJC.com. Thanks to iCivilEngineer for the heads up. (Image by USGS)
I introduced this ruggedized field tablet PC by Trimble here back in March, but there wasn’t any pricing information available at that time. To refresh, it has a military grade ruggedized design to keep out dirt and water, 32GB solid state drive (no moving parts), built in GPS, Wi-Fi, bluetooth 2.0, 2 integrated digital cameras with geotagging functionality (why 2?), Windows Vista Business, and a 7″ sunlight readable screen all in a 2.6-lb package. Read on for the $$.
In this part 2 of 2, various types of retaining walls are examined as possible alternatives in a side-hill retaining wall situation. These include conventional wall types such as CIP walls, MSE walls, gravity walls and soldier pile walls and some less conventional approaches such as lighweight concrete fill, hybrid soil-nail and geofoam wall systems, ground improvement and micropile walls.
Part 1 of this Side Hill Retaining Wall article covered the definition, significance, problems and failure modes, investigation techniques, analysis, and construction considerations of side hill walls. A PDF version is now available for download as well. Click through for the article and the download link!