Assessment of the optimum design of reinforced earth to increase the bearing capacity of strip foundation on sand by numerical modelling

davoudi azad hosein¹ rasulzade farzan²

1) karaj sama college
2) karaj sama college

IOI Code : XYAK-ZFCCE
Publication : 3rd International Congress On Civil Engineering, Architecture & Urban Development(3icsau.ir)
Abstract :
    Soil modification is the effective method to increase of the bearing capacity . For the thin layer weak soil the replacement method is the best but for deep layer pile foundations is effective but more expensive . So we use the insitu reiforced soil method . This method is new and economical to use and flexible for design and constructiion . Arrangement and the optimum design of the steel ribbon investigated for the strip foundation bearing capacity on sandy soil in this paper by FEM and PLAXIS software . . The results showed clearly the effective of ribbons if the depth of the first row of ribbons were the B from the foundation base and the others 0.5B from the first row and the length of the first row is about 6B and incresed about 2B in each row in depth of the soil under the foundation .

Keywords : soil modification pile foundation insitu reinforced soil numerical method