一、前言为提高土体的强度和稳定性而在土中放入拉筋材料,土和拉筋的总称为加筋土。它具备有土的抗压及拉剪、拉筋的抗拉以及拉筋间的摩擦力三者相辅相成的作用。过去十年,在世界各国的公路、铁路等土建工程中 I. INTRODUCTION In order to increase the strength and stability of soil mass, the materials for reinforcement are placed in the soil. The soil and the reinforcement are generally called reinforced soil. It has a soil compressive and tensile shear, tensile strength and tension between the three tendons complement each other. In the past ten years, in the civil works of highways, railways and other countries in the world