• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International symposium on coastal geotechnical engineering in practice >Deformation and strength characteristics of clay obtained by direct shear apparatus equipped with bender elements
【24h】

Deformation and strength characteristics of clay obtained by direct shear apparatus equipped with bender elements

机译：装有弯管机的直接剪切设备获得的粘土的变形和强度特性

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Shear modulus G of clayey soil at small strain level is discussed in this paper. The authors developed a new direct shear apparatus which is equipped with loadcells at inside wall of the shear box and a pair of bender elements (BE) at the top and bottom plates so that mean effective stress sigma_m' and shear modulus G can be evaluated during consolidation and shear processes of consolidated constant volume direct shear test. Based on a series of test results, the relationships among void ratio e, mean effective consolidation stress sigma_m' and shear modulus G are compared with the relationships among e, sigma_m' and Young's modulus E measured by cyclic triaxial loading. A simple equation is proposed based on the observed relationships and it is also shown that the change of G in and after secondary consolidation is due to the combined effects of development or deterioration of soil structure and change of void ratio. Strong dependency of shear modulus G measured by BE during constant volume direct shear test on the effective mean stress sigma_m' is also found and the relationship between shear strength and shear modulus G is discussed.
机译：本文讨论了小应变水平下黏性土的剪切模量G。作者开发了一种新的直接剪切设备，该设备在剪切盒的内壁装有测力传感器，在顶板和底板上装有一对弯曲元件（BE），因此可以在测量过程中评估平均有效应力sigma_m'和剪切模量G固结和剪切过程的固结恒体积直接剪切试验。根据一系列测试结果，将空隙率e，平均有效固结应力sigma_m'和剪切模量G之间的关系与通过循环三轴载荷测量的e，sigma_m'和杨氏模量E之间的关系进行了比较。根据所观察到的关系，提出了一个简单的方程，并且还表明，二次固结中和固结后的G的变化是由于土壤结构的发展或恶化以及孔隙率的变化共同作用的结果。还发现了在恒定体积直接剪切试验中，BE测得的剪切模量G与有效平均应力sigma_m'的强相关性，并讨论了剪切强度与剪切模量G之间的关系。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号