第二类越流系统中结构性弱透水土层一维固结解析解

发布时间：2018-12-12 17:06

【摘要】：在第二类越流系统中,考虑弱透水土层的结构性,将单层土转化为土体厚度不断变化的双层土一维固结问题,推导了以水头表示的结构性弱透水土层的一维固结解析解,进而给出了水位瞬时和线性下降情况的解答。结合3种不同算例,分析了在水位瞬时下降情况中,土的结构性对固结性状的影响。结果表明:结构特性越强,水头变化越慢,趋于稳定的时间越长,按沉降定义的平均固结度在结构性强的土层中增加得越缓慢。
[Abstract]:In the second kind of cross flow system, considering the structure of weakly permeable soil, the one-dimensional consolidation problem of double-layer soil with changing soil thickness is transformed, and the one-dimensional consolidation analytical solution of structural weakly permeable soil layer expressed by water head is derived. The solutions of instantaneous and linear drop of water level are given. Combined with three different examples, the influence of soil structure on consolidation behavior in the case of instantaneous water level drop is analyzed. The results show that the stronger the structural characteristics, the slower the change of water head and the longer the time of stabilization, and the slower the average consolidation degree as defined by settlement increases in the soil layer with strong structure.
【作者单位】：浙江大学滨海和城市岩土工程研究中心;
【基金】：国家自然科学基金面上项目(51278453,51179170) 教育部高校博士点专项科研基金项目(20120101110029)
【分类号】：TU470

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