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基于实验研究，提出了一种新的考虑时间因素的增量形应力－应变－时间关系，用来描述硅藻软岩的应变软化特性．分别对正常固结和超固结领域软岩试样的应力－应变关系，特别是应变软化特性进行了数值模拟计算，得出了与实验相近的结果．通过对计算结果和实验结果的比较分析，探讨了该计算模型的合理性和可行性，验证了软岩的应变软化特性受应力应变时间依存性的影响．
Based on the experimental study, a new incremental stress-strain-time relationship considering time factor was proposed to describe the strain softening behavior of diatom soft rock. The stress-strain relationship, especially the strain-softening behavior of soft rock samples in the normal consolidation and overconsolidation are numerically simulated and the results similar to the experiment are obtained. Through the comparative analysis of calculation results and experimental results, the rationality and feasibility of the calculation model are discussed, and the influence of stress-strain time dependence of strain-softening properties of soft rock is verified.