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Abstract This paper demonstrates that the failure surface of reinforced soil is close to plane through comparing the reinforced soil model test with finite element limit analysis method. Angles between the failure surface and horizontal surface are basically consistent，which verifies that using finite element limit analysis method is feasible. The angle between failure surface and horizontal surface after reinforcement is 8° larger than that before reinforcement，which indicates the reinforced effect is apparent. Because the impact factors of cohesion and internal friction angle are different，so the improvements in the calculation models in the current software and the parameters selection are needed.
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Received: 13 August 2013
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2014, Vol. 33 
