[Objective]The mechanical behavior of normally consolidated silty clay reinforced with geocell is of significance for engineering construction.[Methods]An analytical method was formulated for the prediction of stress-strain responses in geocell-reinforced normally consolidated clay in this paper.In addition,a series of con-ventional triaxial compression tests were conducted on geocell-reinforced normally consolidated clay to investigate the reinforcement effects and validate the effectiveness of the proposed method.The predicted stress-strain respon-ses are in good agreement with those measured in the tests,affirming the efficacy of the proposed method.In addi-tion,parametric studies were conducted to investigate the effects of the mechanical properties of the backfill pocket size and the stiffness of the geocell on the stress-strain response of the geocell-reinforced clay.[Results]The study results show that the geocell-reinforced normally consolidated clay exhibits strain hardening.The internal friction angle of the reinforced clay remained similar to unreinforced clay,whereas apparent cohesion increased due to geo-cell confinement.Furthermore,the reinforcement effect on the clay intensified with increasing axial strain and re-ducing confining pressure.The strength and stiffness of the reinforced clay increase with the increase in the nonlin-ear elastic parameter k and the reduction in Rf.[Conclusion]The results will be guidance for engineering con-struction.
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