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路基的压实工作是路基施工过程中一个重要工序,亦是提高路基强度与稳定性的根本措施之一。土是三相体,土粒为骨架,颗粒之间的孔隙为水和空气所占据。采用机械对土施以碾压能量,使土颗粒重新排列,彼此挤紧,孔隙减小,形成新的密实体,增强粗粒之间摩擦和咬合,以及增加细粒土之间的分子引力,从而提高土的强度和稳定性。
Subgrade compaction is an important process in the process of subgrade construction and is also one of the fundamental measures to improve the strength and stability of subgrade. Soil is a three-phase body, soil particles for the skeleton, the pores between the particles for the water and air occupied. Using mechanical compaction of the soil to make the soil particles rearrange, squeeze each other tight, reducing the porosity to form a new dense body, to enhance friction and cohesion between the coarse particles, as well as increasing the molecular gravitation between the fine grained soil, Thus increasing soil strength and stability.