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      何金華
    （上海鐵道大學(xué)土木系  上海 200333）

[提要]  基于將基坑支持問題簡化為平面應(yīng)變問題，土體為分層均勻、各向同性的彈粘塑性連續(xù)體和Mohr- Coulomb屈服準(zhǔn)則及相關(guān)聯(lián)的流動(dòng)法則假定，作者采用粘彈塑性模型模擬了土的彈塑性和流變性，用有限元模擬基坑實(shí)際開挖全過程，對(duì)具體工程進(jìn)行計(jì)算，討論了土的流變參數(shù)。
[關(guān)鍵詞]  軟土 粘彈塑性 流變參數(shù) 有限元

An elasto-viscoplastic model is used to imitate the elasto-plasticity and theology of soft soil. The whole
process of excavation is inutated by finite elements.A practical engineering problem is caculated with this method.
Keywords: soft soil; elasto-viscoplasticity; fluidity parameter; finite element