...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Canadian Geotechnical Journal >Cyclic tests on high-quality undisturbed block samples of soft marine Norwegian clay
【24h】

Cyclic tests on high-quality undisturbed block samples of soft marine Norwegian clay

机译：挪威海洋软质高品质原状块状样品的循环测试

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The results of a study with undrained cyclic triaxial and direct simple shear (DSS) tests on high-quality undisturbed samples obtained from large blocks of a soft marine Norwegian clay are presented. Several tests with different average shear stresses, shear stress amplitudes, loading frequencies, and sample geometries have been performed on block samples taken from different depths. In tests with small average shear stresses, failure occurred due to large shear strain amplitudes, while large permanent shear strains were observed in tests with higher average shear stresses. Diagrams quantifying the undrained cyclic strength, permanent shear strain, shear strain amplitude, and permanent pore-water pressure dependent on average shear stress, shear stress amplitude, and number of cycles have been developed based on the test results. The undrained cyclic strength was found strongly dependent on loading frequency. Block samples from shallower depth showed a somewhat higher undrained cyclic strength. No influence of the height-to-diameter ratio of the samples (h/d = 1 and 2 were compared) could be found. A qualitative comparison of the test results with data for standard tube samples is provided.
机译：给出了不排水循环三轴试验和直接简单剪切（DSS）试验的结果，该试验是对从大块挪威软粘土中获得的高质量原状样品进行的。已经对从不同深度采集的块状样品进行了几种具有不同平均剪切应力，剪切应力幅度，加载频率和样品几何形状的测试。在平均剪切应力较小的测试中，由于较大的剪切应变振幅而导致发生破坏，而在平均剪切应力较高的测试中观察到较大的永久剪切应变。根据测试结果，开发了根据平均剪切应力，剪切应力幅度和循环次数来量化不排水循环强度，永久剪切应变，剪切应变幅度和永久孔隙水压力的图表。发现不排水的循环强度强烈依赖于加载频率。较浅深度的块状样品显示出较高的不排水循环强度。没有发现样品的高径比（h / d = 1和2）的影响。提供了测试结果与标准试管样品数据的定性比较。

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