【摘要】：在第二類越流系統(tǒng)中,考慮弱透水土層的結(jié)構(gòu)性,將單層土轉(zhuǎn)化為土體厚度不斷變化的雙層土一維固結(jié)問題,推導了以水頭表示的結(jié)構(gòu)性弱透水土層的一維固結(jié)解析解,進而給出了水位瞬時和線性下降情況的解答。結(jié)合3種不同算例,分析了在水位瞬時下降情況中,土的結(jié)構(gòu)性對固結(jié)性狀的影響。結(jié)果表明:結(jié)構(gòu)特性越強,水頭變化越慢,趨于穩(wěn)定的時間越長,按沉降定義的平均固結(jié)度在結(jié)構(gòu)性強的土層中增加得越緩慢。
[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.
【作者單位】： 浙江大學濱海和城市巖土工程研究中心;
【基金】：國家自然科學基金面上項目(51278453,51179170) 教育部高校博士點專項科研基金項目(20120101110029)
【分類號】：TU470

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