爆炸波作用下准饱和土的动力模型研究

爆炸波作用下准饱和土的动力模型研究 English Version

基金项目: 国家自然科学基金

摘要: 准饱和土是由固体土颗粒、水和少量封闭的空气组成的三相混合物介质。在研究爆炸波在准饱和土中的传播规律及与结构的相互作用时，不能沿用非饱和土的规律，也不能将其看作二相混合介质进行分析。本文结合爆炸波在准饱和土中传播的宏观试验，运用混合物理论建立起研究一维平面爆炸波作用下准饱和土的动力分析模型。
- 准饱和土 /
- 爆炸波 /
- 混合物理论
Abstract: Quasi-Saturated soil consists of solid particles,water and a small amount of trapped air The method and correspondingformula to study explosive wave propagation and soil-structure interaction in non-saturated soil are not valid for quasi-saturated soil.In addition,the dynamic properties of the quasi-saturated soil is alse different from that of the two-phase mixture media consistingof soild partides and water(regarded as saturated seil).In this paper,the mixture theory is used to establish the dynamic modelbased on macraseopic test results in the quasi-saturated soil under one-dimensional plane explosive wave.
- quasi-saturated soil /
- explosive wave /
- mixture theory.