Currently, heavy hammer compaction method (HHCM) and quasi-static-compaction method (QSCM) are primarily used to produce the unbound graded aggregate materials (UGAM) samples and their mechanical properties are measured to guide the design and construction of the UGAM base. However, few studies have focused on the mechanical properties of the UGAM produced using vertical-vibration compaction method (VVCM). Thus, this paper studies mechanical properties of the UGAM fabricated by the VVCM. The reliability of VVCM was evaluated by comparing the physical and mechanical properties measured in the field and in a specimen fabricated by the HHCM or QSCM. After discussing the influence of compactness, moisture content, gradation and stress on the mechanical properties of UGAM fabricated by VVCM, a prediction model of dynamic resilient modulus was established. The California bearing ratio (CBR) of the VVCM-fabricated UGAM was more than 92% of the field-measured CBR. The VVCM also exhibited a lower aggregate crushing rate than the HHCM and QSCM. The CBR and unconfined compressive strength increased linearly and nonlinearly with compaction degree, respectively. Moreover, the shear strength was a linear function of confining pressure, but resilient modulus nonlinearly increased with deviator stress. Moisture content was reduced by air drying and this increased the mechanical properties. The influence of various factors on the dynamic resilient modulus of UGAM could be accurately predicted by the established model. The performance of UGAM was improved after GM gradation than after GF gradation. Thus, this alternative compaction method is vital for enhancing the popularisation and application of UGAM.

目前，重锤压实法（HHCM）和准静态压实法（QSCM）主要用于生产未粘结的梯度骨料（UGAM）样品，并对其力学性能进行测量，以指导UGAM基础的设计和施工。但是，很少有研究集中在使用垂直振动压实法（VVCM）生产的UGAM的机械性能上。因此，本文研究了由VVCM制造的UGAM的力学性能。通过比较在现场和由HHCM或QSCM制成的样品中测得的物理和机械性能，可以评估VVCM的可靠性。在讨论了压实度，含水量，等级和应力对VVCM制成的UGAM力学性能的影响后，建立了动态​​弹性模量的预测模型。VVCM制造的UGAM的加利福尼亚承载比（CBR）超过现场测量的CBR的92％以上。VVCM还显示出比HHCM和QSCM更低的骨料破碎率。CBR和无侧限抗压强度分别随压实度线性增加和非线性增加。此外，剪切强度是围压的线性函数，但弹性模量随偏应力非线性增加。空气干燥可减少水分含量，从而提高机械性能。建立的模型可以准确地预测各种因素对UGAM的动态弹性模量的影响。GM分级后，UGAM的性能比GF分级后有所提高。因此，