Carolina Sunrock constructed a new primary crusher and needed a 51 foot tall retaining wall to create the grade separation. They went with a Redi-Rock faced wall, and were in the unique position to buy the forms and cast the blocks themselves since they operate a redi-mix plant. The reinforced zone extends 57 feet behind the wall because of the heavy surcharge loads from the haul trucks. Read more about the case study at the link below.
ADAMA Software has released update 9.2 for their Mechanically Stabilized Earth retaining wall design software, MSEW 3.0 as of December 12, 2008. They also released update 3.1 for ReSSA 3.0, a reinforced soil slope design program on January 15, 2009. The ReSSA update seems like a relatively minor one, but the MSEW update contains a number of updates related to AASHTO LRFD resistance factors and design methods. If you are involved in MSE wall design for highway structures using LRFD, be sure to click through for a few highlights from the update and the download link.
ADAMA Software has released several updates to their popular MSE Wall design software and Reinforced Soil Slope software packages. Update 9 to MSEW 3.0 was posted on April 25. The changes include several updates related to the AASHTO 2007 code, and the option to use either the Simplified Method (AASHTO) or the Coherent Gravity Method (CGM). And there is now an option for considering live load (LL) in calculating Tmax for strength and connection but ignoring it for pullout.
Update 2.2 to ReSSA 3.0 was posted yesterday, May 5 after several itterations of the update were posted during the month of April. The update includes a fix for handling geometries where multiple points have the same X-coordinate but different Y-coordinates. It also allows for the specification of a vertical seismic coefficient as well as a horizontal one. And the latest updates allow the inclusion of the safety map in the printout, include modified calculations of reinforcement quantities, and allow user-selected colors for reinforcement layers that now shows up in the printout too. Click through for the download link.