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通过特定加、卸荷方式的一维固结试验,模拟了软基在等载预压、超载预压模式下的变形过程。试验表明,软基路堤施工过程中的分级加荷,对于全部荷载长期作用的变形过程,不足以对总变形产生较大的影响;对于有超载参与的预压过程,当超载作用时间小于完成等载变形要求的最佳时间时,对总变形量不会产生影响,否则会使得总变形量增大。
Through the one-dimensional consolidation experiment of specific loading and unloading methods, the deformation process of soft foundation in the mode of equal load and overloading is simulated. The tests show that the graded loading during embankment construction of the embankment is not enough to affect the total deformation due to the long-term deformation of the entire load. For the preloading process with overload, when the loading time is less than the completion time Load deformation requirements of the best time, the total deformation will not have an impact, otherwise it will make the total deformation increases.