干密度值较高时，土样处于密实状态，表现出剪胀特性，有效主应力比-应变曲线近于应变软化型；
When the dry density is relatively high, this dense specimen shows shear dilatation characteristics, and the effective principal stress ratio tends to be strain softening phenomenon.
分析结果表明：黏土—混凝土界面剪应力—剪切位移曲线仍大体呈双曲线形式，并未出现应变软化现象。
Results show that the shape of shear stress-shear strain curves is hyperbolic; and no strain-softening phenomenon was observed in the tests.
幂律模型既能反映硬化特性又能模拟双曲线模型不能反映的应变软化关系，因而能合理地反映粗粒料的应力应变关系。
Power law model can describe both strain-hardening and strain-softening behaviors, which can be used effectively to model stress-strain relationship of coarse-grained materials.
幂律模型既能反映硬化特性又能模拟双曲线模型不能反映的应变软化关系，因而能合理地反映粗粒料的应力应变关系。
Power law model can describe both strain-hardening and strain-softening behaviors, which can be used effectively to model stress-strain relationship of coarse-grained materials.
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