Title of article :
Parametric study from laboratory tests on twin circular footings on geocell-reinforced sand
Author/Authors :
Fazeli Dehkordi, P Department of Civil Engineering - Science and Research Branch - Islamic Azad University - Tehran, Iran , Ghazavi, M Department of Civil Engineering - K.N. Toosi University of Technology - Tehran, Iran , Ganjian, N Department of Civil Engineering - Science and Research Branch - Islamic Azad University - Tehran, Iran , Karim, U.F.A Faculty of Technology - University of Twente - Enschede, the Netherlands
Abstract :
Bearing Capacity (BC) test results are presented for bounded and unbounded
twin circular footings on unreinforced and geocell-reinforced (GCR) sand. Analysis of the
results demonstrate material, scale and size effects on the BC for a given combination in
materials (sand-GCR), footing (single-twin) and the problem geometric dimensions. The
significance of these combinations on BC and settlements is used to arrive at suitably
modified BC factors for a design that could be generalized. Plots given relative to reference
cases for which BC design solutions are available provide correction factors to modify
classical BC equations. Values of the BC and BC factors represent the lumped effect
of all or separate problem variables including scale and any experimental limitations.
Compared with previous works, these results give deeper critical depths for twin footings
on unreinforced and GCR sand and BC higher than 3 times the reference case.
Keywords :
Bearing capacity factors , Sand , Geocell reinforcement , Circular twin footings , Rigid base
Journal title :
Scientia Iranica(Transactions A: Civil Engineering)
