状态参量与砂土剪胀性判别方法

基金项目:

北京市教委科技发展计划项目资助(KM200910009008).

详细信息

State Parameter and the Differentiation Method of Sands Dilatancy

1. Scool of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;
2. College of Architectural Engineering, North China University of Technology, Beijing 100144, China

摘要: 论述了砂土剪胀性特点和状态参数概念.通过对现有试验结果的对比分析,建立了相变线的概念,提出了相变孔隙比和相变应力比的定义和计算公式.提出了状态参量的计算公式和依据状态参量判别砂土剪胀(缩)的具体方法,并建立了砂土的剪胀比计算公式.为建立砂土本构模型提供依据.
- 砂土 /
- 剪胀性 /
- 状态参量 /
- 相变线 /
- 剪胀比
Abstract: The charactors of dilatancy of sands and the concept of the state parameter were discussed.By means of the comparative analysis of experimental results,the concept of phase trans formation line was established.Phase transformation void ratio and phase transformation stress ratio were put forward.State parameter computing formula and a specific method for differentiating sands dilatancy according to state parameter were posed.A kind of method for computing sands dilatancy ratio was established.All of these research would help to provide foundation for creating sannds constitutive model.
- sand /
- dilatancy /
- state parameter /
- phase transformation line /
- dilation rate