CAJ | 학술논문

研究了梯度饱和土层在外荷载下的固结作用，利用Biot理论给出了固结的基本微分方程，一些材料常数假设为指数模型，当梯度系数为零时，退化为一维均匀饱和土层的固结，利用分离变量等方法，得到透水和不透水边界条件下孔隙压力，给出了固结度曲线。当梯度系数不为零时，给出了梯度饱和土在外荷载下的孔隙压力，利用固结度的定义，数值算例出了梯度饱和土层的固结度变化曲线，分析和讨论了梯度系数等对固结度的影响。这些结果对地基下沉量计算和预测有一定的理论价值和意义。
연구료제도포화토층재외하재하적고결작용，이용Biot이론급출료고결적기본미분방정，일사재료상수가설위지수모형，당제도계수위령시，퇴화위일유균균포화토층적고결，이용분리변량등방법，득도투수화불투수변계조건하공극압력，급출료고결도곡선。당제도계수불위령시，급출료제도포화토재외하재하적공극압력，이용고결도적정의，수치산례출료제도포화토층적고결도변화곡선，분석화토론료제도계수등대고결도적영향。저사결과대지기하침량계산화예측유일정적이론개치화의의。
The consolidation effect of gradient saturated soil subjected to loading all round the surface is studied. The fundamental differential equations to control the consolidation are given in terms of the Biot’s theo-ry. Some parameters of the medium are assumed to be of exponential forms. The problem can degenerate into the consolidation of homogenous one-dimensional saturated soil when the gradient coefficient is 0 . The pore pres-sure is presented under the permeable and impermeable boundary conditions by using the methods of separation of variables, and the consolidation degree curve is depicted under both conditions. The pore pressure in the gra-ded saturated soil subjected to loading all round the surface is obtained when the gradient coefficient is not 0 . According to the definition of consolidation degree, the change curve of the consolidation degree is shown by a numerical example. The affects of the gradient coefficient on the degree is analyzed. These results are of a cer-tain theoretical value and significance for computing and predicting the amount of ground subsidence.