1. Abuhajar, O., El Naggar, H., Newson, T., 2011. Effects of Underground structures on amplification of seismic motion for sand with varying density. In: Proc. 2011 Pan-Am CGS Geotechnical Conference. Toronto, Ontario, Canada, October 2–6.
2. Active isolation of machine foundation by in-filled trench barriers;Al-Hussaini;J. Geotech. Eng-ASCE,1996
3. Full scale experimental study on vibration scattering using open and in-filled (Geofoam) wave barriers;Alzawi;Soil. Dyn. Earthq. Eng.,2011
4. Baziar, M.H., Ghanad, Z., 2012. Soil Dynamics. IUST, Tehran (in persian).
5. Optimising low acoustic impedance back-fill material wave barrier dimensions to shield structures from ground borne high speed rail vibrations;Connolly;Constr. Build. Mater.,2013