Method for Considering the Effect of Nonuniform Consolidation
Method for Considering the Effect of Nonuniform Consolidation
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DOI：
10.1061/(asce)gm.1943-5622.0001078
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发表时间：
2018-02
影响因子：
3.7
通讯作者：
J. Chai;Yang Zhou
中科院分区：
文献类型：
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作者：
J. Chai;Yang Zhou
通过室内模型试验和有限元分析，研究了一维条件下非均匀固结对平均固结度的影响。非均匀固结是指在固结过程中土体的渗透系数和体积压缩系数随时间和空间的变化。采用固结理论和有限元分析方法，对室内一维固结试验进行了分析。在有限元分析中，模拟了域内土壤kvandmv的空间变化。通过试验和有限元分析结果与理论分析结果的对比，证实了非均匀固结对平均DOC的影响。基于有限元分析结果，提出了太沙基一维固结理论中考虑非均匀固结影响的方法。
The effect of nonuniform consolidation on the average degree of consolidation (DOC) under the one-dimensional (1D) condition is investigated through a laboratory model test and finite-element analyses (FEAs). Nonuniform consolidation refers to spatial and time variations in the permeability (kv) and coefficient of volumetric compressibility (mv) of soil induced by the consolidation process. A 1D laboratory consolidation test was conducted and analyzed using consolidation theory and FEAs. In FEAs, the spatial variations ofkvandmvof the soil within the domain are simulated. By comparing the results of the test and FEAs with the analytical results, the effect of nonuniform consolidation on the average DOC is confirmed. Based on the results of FEAs, a method for considering the effect of the nonuniform consolidation in Terzaghi’s 1D consolidation theory is proposed.