Open AccessBearing Capacity of Two Closely Spaced Strip Footings on Geogrid Reinforced Sand
Author(s) -
Jawdat K. Abbas,
Israa S. Hussain
Publication year - 2013
Publication title -
mağallaẗ tikrīt li-l-ʻulūm al-handasiyyaẗ/tikrit journal of engineering sciences
Language(s) - English
Resource type - Journals
eISSN - 2312-7589
pISSN - 1813-162X
DOI - 10.25130/tjes.21.1.02
Subject(s) - geogrid , bearing capacity , reinforcement , geotechnical engineering , settlement (finance) , bearing (navigation) , friction angle , materials science , finite element method , structural engineering , geology , engineering , composite material , physics , computer science , astronomy , world wide web , payment
The finite element method is used to investigate the ultimate bearing capacityof two closely spaced strip footings on geogrid reinforced sand. The effect of variation ofseveral parameters on the bearing capacity had been studied (number of reinforcement layers,optimum depth of the first and last layers of reinforcement). In this study the main results showthat, the bearing capacity of the soil increases, and settlement decrease as with the number ofreinforcement layers. The optimum depth of the first layer of reinforcement ranged between(0.375-1)B, while optimum depth of the last layer of reinforcement varies between (1.125-2.25)B depending on the angle of internal friction. The optimum number of reinforcementlayers is ranged between (4-6) depending on the center to center spacing between the interferingfootings and the angle of internal friction.