LOAD CARRYING CAPACITYOF RING FOOTING ON GEOCELL REINFORCED SANDY SOIL
Keywords:
Reinforced sand, ring foundations, geocell reinforcement, failure load.Abstract
Ring foundations are often adopted for large and tall structures to resist lateral loads and to increase the stability against overturning. This paper is conducted to study the experimental behavior of model ring footing and circular footing resting on reinforced sandy soil subjected to vertical static (monotonic) load. A total of eight models have been tested to study the behavior of shallow footings under monotonic load in case of loose sand (R.D. = 30%), four footing shapes, Df= 0 depth of foundation embedment, (b = 200 mm) width of geocell mat and V= 5 mm/sec. rate of loading were tried. It was concluded that for unreinforced and reinforced soil, the bearing capacity increases with increasing (Din/Dout) ratio of ring footing. Also, the results indicated that an optimum ratio of the inner to outer diameter of the ring footing has been indicated which was (0.4), and after this ratio, the bearing capacity starts decreasing.
