通过对比分析表明，三维弹粘塑性模型可以较好地描述软岩的应变速率效应。
Through comparing and analysis, it is found that 3d EVP model is effective to describe the strain rate effect of soft rock.
采用适用于上海饱和软土的非线性粘弹塑性模型，研制了三维有限元软件。
The elasto viscoplastic constitution has been employed for 3D FEM programming of soft saturated clay in Shanghai.
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