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Effects of unreinforced /reinforced sand layers coupled with / without sand columns on bearing capacity – settlement of soft clay
Mahmood Reza Abdi *1, Mahdi Safdari Seh Gonbad, Hoshmand Tirandazi
1- , abdi@kntu.ac.ir
Abstract:   (1797 Views)
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.

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Keywords: Bearing capacity, soft clay, sand column, reinforcement, geogrid.
Full-Text [PDF 1521 kb]   (215 Downloads)    
Type of Study: s | Subject: Geotecnic
Received: 2019/10/15 | Accepted: 2020/07/25 | Published: 2021/12/1
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Abdi M R, Safdari Seh Gonbad M, Tirandazi H. Effects of unreinforced /reinforced sand layers coupled with / without sand columns on bearing capacity – settlement of soft clay. Journal of Engineering Geology. 2021; 15 (3)
URL: http://jeg.khu.ac.ir/article-1-2903-en.html


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Volume 15, Issue 3 (12-2021) Back to browse issues page
نشریه زمین شناسی مهندسی Journal of Engineering Geology
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