- 摘 要
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湯岳飛 馮紫良 林 翰 陳 欣
（同濟大學地下建筑與工程系 上海 200092）[提要] 在室內(nèi)流變試驗的基礎上，擬合出了一種半經(jīng)驗半理論型的非線性流變的計算公式，該公式具有概念簡明、便于編程等特點。飽和軟粘土在變形過程中流變變形與固結(jié)變形是相互耦合在一起的，從耦合的角度出發(fā)，將Biot固結(jié)理論應用到飽和軟粘土的非線性流變分析，并在此基礎上，編制了相應的有限元程序。最后，用工程實例分析了軟土工程土體的流變性態(tài)，得出了一些有益的結(jié)論。
[關(guān)鍵詞] Biot固結(jié) 非線性流變 飽和土 有限元Based on the analysis of the theologic lab test on saturated soft clays, the dissertation generalizes a new 2D nonlinear theologic numerical analysis formula. The method for calculating deformation in saturated clays is presented on the basis of coupling theology with consolidation, besides the 2D-FEM program has been developed. At last, a practical braced cut engineering is analyzed, and suggestions concerning design and construction are made.
Keywords: Biot consolidation; nonlinear theology; saturated clays; FEM; coupling analysis
