利用室内试验测定了土工格栅加筋碎石土的无侧限抗压强度和土工格栅加筋粉砂土的回弹 模量，分析了加筋层数和压实度对加筋土的抗压特性和变形特性的影响规律。试验结果表明：当 格栅层距较小时，土工格栅加筋碎石土具有良好的抗变形韧性，且土的压实度越高，其无侧限抗 压强度越大；与未加筋的纯土相比，土工格栅加筋粉砂土的变形刚度有显著提高，且格栅层数越 多，提高的量越大。

The unconfined compression strength of geogrid-reinforced crushed stone soil and the resil⁃ ient modulus of geogrid-reinforced silty sand were measured respectively by indoor tests. Based on the test results, the rule of the influence of the number of reinforcement layers or the soil′s degree of compac⁃ tion on the compressive property and deformation property was analyzed. The followings have been proved by the experiments: (1) geogrid-reinforced crushed stone soil with small reinforcement spacing not only demonstrates an agreeable ductile, but also has a higher compressive strength, which increases with the increase of the relative compaction of soil; (2) the resilient stiffness of the geogrid-reinforced silty sand is much greater than that of the pure soil without geogrid, and the more the number of rein⁃ forcement layers is, the greater the resilient stiffness of the geogrid-reinforced silty sand is.