高填粉土地基沉降稳定趋势的检测与判定

The Inspection and Recognition of Settlement Convergence for High-Filled Silt ground

通过合理选择高应力水平下土的固结系数CV作为土工检测指标,计算得到的固结度值可较方便地判断高填土的固结变形程度,并由此推定高填土最终沉降稳定的时间。实际工程应用表明,由该方法推定的沉降稳定时间与实际稳定时间较一致,其精度主要由固结系数的试验应力与实际土体中应力的误差所控制。

The consolidation parameter Cv under high stress level is selected as the geotechnical inspection index; The consolidation degree which is calculated by the index can be used to recognize the consolidation deformation degree of high-filled soil easily and to deduce the time when high-filled soil settlement stable finally. The application results in real engineering show that the settlement stable time deduced by this procedure is accordance with that of the practical engineering, and the precision of the method is controlled by the errors between the test stress of consolidation parameter and the stress in real soil ground.