基于室内模拟试验研究了不同成型方式(振动成型和标准静压成型)对整体大厚度水泥稳定碎石基层路用性能(力学性能、体积变形性能和抗冲刷性能)的影响。结果表明:大激励振动一次成型厚层水泥稳定碎石基层上部结构的无侧限抗压强度、劈裂强度和抗压回弹模量均大于其下部结构,其差异性随龄期增长而降低,且上部与下部结构的力学性能兼高于标准静压成型水泥稳定碎石基层;两种方式成型对水泥稳定碎石干缩、温缩及抗冲刷性能影响规律与力学性能相同。
Based on simulation test in laboratory,the effects of different molding methods(vibrating compaction and standard static pressure)on overall large-thickness cement stabilized macadam base were studied,in terms of mechanical properties,volume deformation,and erosion resistance.The results show that unconfined compressive strength,splitting strength,and compressive modulus of the upper layer are all higher than those of the lower layer for the thick cement stabilized macadam base molded by largely vibrating compaction.And it also indicates that the difference in the mechanical properties between the upper and lower layers decreases with age growth.It is obtained that the mechanical properties of both upper and lower layers for the thick cement stabilized macadam base molded by largely vibrating force were larger than those of cement stabilized macadam base molded by standard static pressure;and on the other hand,the effects of drying shrinkage,temperature shrinkage,and erosion resistance are similar to those of mechanical properties on the cement stabilized macadam base molded by two methods.