Browsing by Author "Helwany, Sam"
Now showing items 1-5 of 5
-
Construction vibration attenuation with distance and its effect on the quality of early-age concrete
Siwula, John; Helwany, Sam; Lyons, Richard (Wisconsin Highway Research Program, 2011-09)Pile-driving, blasting, and other WisDOT construction activities create air- and ground-transmitted vibration forces that can damage existing and in-construction facilities. Wisconsin limits construction-based vibration ... -
Determination of typical resilient modulus values for selected soils in Wisconsin
Helwany, Sam; Elias, Mohammed B.; Titi, Hani (Wisconsin Highway Research Program, 2006-05)The objective of this research is to develop correlations for estimating the resilient modulus of various Wisconsin subgrade soils from basic soil properties. A laboratory testing program was conducted on common subgrade ... -
Development of full scale testing of an alternate foundation system for post and panel retaining walls
Titi, Hani; Panda, Ritu; Helwany, Sam (Wisconsin Highway Research Program, 2009-03)This research will develop and test a new, potentially less expensive and more easily executed design for post-and-panel retaining wall foundations. The design, proposed by several contractors to the Wisconsin Department ... -
Evaluation of bridge approach settlement mitigation methods
Ghorbanpoor, Al; Koutnik, Therese Ellen; Helwany, Sam (Wisconsin Highway Research Program, 2007-10)Over the past 20 years, extensive research has been conducted to study the causes and mitigation methods of bridge approach settlement or "the bump at the end of the bridge." Many Departments of Transportation are significantly ... -
Investigation of vertical members to resist surficial instabilities
Helwany, Sam; Titi, Hani (Wisconsin Highway Research Program, 2007-06)This report summarizes the state of the art of using reinforcing structural members to stabilize surficial slope failures. The literature search and review conducted in this study indicated that the use of structural members ...