加筋粉煤灰的力学特性室内试验研究

Laboratory Test on Mechanical Properties of Flyash and Reinforced Flyash

通过室内试验，研究了粉煤灰的强度、变形及稳定性，以及加筋粉煤灰的力学特性．提出了压实粉煤灰本构关系接近邓肯ＥＢ模型，并求出了模型参数．还成功地采用了一双曲线模型模拟了筋带与粉煤灰接触面的剪切滑移非线性特征．

The properties of flyash and reinforced flyash in strength, deformation and stability is studied based on laboratory test. It is concluded that the constitutive relation of compacted flyash is very close to Duncan E B nonlinear elastic model. The values of the required parameters of the flyash's model are determined in this paper. The nonlinear shear sliding performances of the interface of the reinforced flyash is well fitted by the hyperbolic model.