%0 Journal Article %A Abdi, Mahmood Reza %A Safdari Seh Gonbad, Mahdi %A Tirandazi, Hoshmand %T Effects of unreinforced /reinforced sand layers coupled with / without sand columns on bearing capacity – settlement of soft clay %J Journal of Engineering Geology %V 15 %N 3 %U http://jeg.khu.ac.ir/article-1-2903-en.html %R %D 2021 %K Bearing capacity, soft clay, sand column, reinforcement, geogrid., %X In current paper the effects of surface unreinforced / reinforced sand layers coupled with and without single and group sand columns on the bearing capacity – settlement behavior of soft clays has been investigated. In this regard behavior of soft clay, clay + unreinforced / reinforced sand layer, clay + single / group sand piles and clay + unreinforced / reinforced sand layer + single / group piles samples has been assessed. Geogrid was adopted as the reinforcement, a circular plate 5cm in diameter as the loading surface and C.B.R. apparatus as the loading system. Results show that employing unreinforced / reinforced sand layers at a settlement ratio of 5% improves bearing capacity by 4 t0 7 times the soft clay. Coupling the surface unreinforced / reinforced sand layers with single / group sand piles further increases the bearing capacity by 7 to 9 times that of soft clay. ./files/site1/files/%D8%B9%D8%A8%D8%AF%DB%8C.pdf %> http://jeg.khu.ac.ir/article-1-2903-en.pdf %P 437-454 %& 437 %! %9 Case-Study %L A-10-1337-2 %+ %G eng %@ 2228-6837 %[ 2021