加筋碎石土的归一性研究
摘要:碎石土加筋前后应力一应变关系的归一性较差。围压越低,颗粒越硬,归一性越差;随围压增大,归一性增强。根据加筋前后各试验点的集中程度和围压大小,将碎石上的归一化直线划分为两条,并由归一化参数预测碎石土加筋前后的应力-应变关系。与实测曲线比较,不加筋时差别随围压增大和颗粒粗硬而增大;加筋时差别较小。同时根据归一性提出了描述该类土体切线剪切模量的归一化本构方程,其方程参数直接由三轴试验成果确定,并给出了所有方程参数。
Abstract:The normalization of relationship between stress and strain of gallet, reinforced or not, is not as good as that of soil. The lower the around pressure and the harder the stone, the more scattering the test points in cartesian system. In orthogonal system, according to the scattering points and the magnitude of around pressure, gallet, reinforced or not, can be normalized into two lines which can be used to determine the stress-strain relationship. Comparing with the test curves, the result shows that the points of reinforced gallet are more concentrated than those of unreinforced gallet.Finally,a anew constitutive equation related to the normalization is proposed to calculate the tangential shear modulus of gallet.The parameters which can be directly determined by tri-axial test in the equation are also demonstrated.
中文标题：
加筋碎石土的归一性研究
作者：
黄英1,何发祥2
作者简介:黄英,1963年生,女,岩土工程硕士,副教授。主要从事有关岩土工程的教学、科研和技术服务工作。
通讯地址：
1. 昆明理工大学电力工程学院, 昆明 650051; 2. 四川大学水利系, 成都 610065
中图分类号:TU472
出版物：岩土工程技术
收稿日期:1999-10-25
网络出版日期:2021-07-30
关键词:加筋碎石土,归一性,应力-应变关系,归一化本构方程
Key words:reinforced gallet,normalization,stress-strain relationship,normalized constitutive equation
文档包含图片数量：图片(0)张
文档包含表格数量：表格(0)个
参考文献：
基金项目：
- 文件大小:
- 428.39 KB
- 下载次数:
- 60
-
高速下载
|
|
