条形荷载下高饱和土地基的固结与沉降

以Biot（1941）提出的理想土体的三维固结理论为基础，在水流连续条件中增加了考虑孔隙流体本身的压缩变形，并将这一因素以高饱和度土体的饱和度的变化为表征，写入文中建立的平面应变下的Biot二维固结方程。通过实施Laplace变换和Fourier正余弦变换获得基本方程组，求解得到初始函数表达式；再利用数值反变换得到任意时刻、任意一点的数值解，并侧重分析了高饱和土饱和度的变化对孔隙流体的压缩性能的影响，以及由此而产生的固结全过程的变化，表明了考虑孔隙流体的压缩对分析高饱和度土体的固结行为的意义。该解可以进一步推广到其它类型荷载作用在土体不同位置，以及不同边界条件下多层地基的二维固结分析。

Consolidation behavior and settlement of highly saturated soil under uniform load

It is based on Biots three-dimensional consolidation theory of ideal soil. The compression of the pore fluid is considered in the continuity condition of the flow. And this factor, as a function of the degree of saturation, can be written into the Biots two-dimensional consolidation equations. The governing equations are established by using Laplace and Fourier transformation to obtain the initial functions. Then the real time behavior can be obtained by using numerical inversion respectively. The procedure of consolidation affected by the degree of the saturation of highly saturated soil is studied thus the consolidation of the compression of pore fluid is proved to be necessary.