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选择邯郸市区5个工程的粉土土样,采用DDS-70微机控制电磁式振动三轴仪对非饱和粉土的动模量和阻尼比进行了试验研究,探讨了围压、剪应变、孔隙比、粘粒含量等对它们的影响;运用Hardin-Drnevich模型对动三轴试验结果进行整理分析,并通过统计计算提出了邯郸市确定粉土动模量的初步公式,为地基基础设计提供了依据。
The earthwork samples of five projects in Handan urban area were selected. The dynamic modulus and damping ratio of unsaturated silt were tested by DDS-70 computer-controlled electromagnetic vibration triaxial apparatus. The effects of confining pressure, shear strain, Porosity ratio and clay content, etc. The Hardin-Drnevich model was used to analyze the dynamic and triaxial test results, and a preliminary formula for determining the dynamic modulus of silt in Handan City was put forward through statistical calculation to provide the basis for foundation design The basis.