• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Symposium on Geotechnical Measurements and Modelling; Sep 23-25, 2003; Karlsruhe, Germany >Assessment of a loading test on highly sensitive deformable soil
【24h】

Assessment of a loading test on highly sensitive deformable soil

机译：在高敏感度可变形土壤上进行载荷试验的评估

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

One of the main questions in soil mechanics is the relevance and accuracy of soil characteristic parameters determined in laboratory and in field tests. Inaccuracy in soil parameters affects significantly the afterward calculated mechanical response and the theoretically predicted settlement. Very often a significant difference is observed when comparing settlements measured in situ during geotechnical works with those obtained after calculations based on the laboratory tests. That is why it is of interest to evaluate soil parameters from in situ data by back calculations using a proper mathematical model and to correlate the results with parameters determined from standard laboratory oedometer tests. The aim of this article is to give an example for such procedure. The application is related to the waste disposal site 'Croebern' which is one of the most modern in Europe. It has been placed in the late open cast mining area 'Espenhain' in the southern area of Leipzig (Germany). Horizontal inclinometer and extensometer have been installed in advance to measure the time and load dependent vertical displacements. These measurements provide data for comparing the actual soil behavior and the results from the mathematical modelling of the process. The mathematical model also takes into account the measured vertical displacements during site building, exploration drillings and the results of laboratory tests as well. The corresponding mathematical problem is solved analytically for the 1D case and numerically using FEM for the 2D case.
机译：土壤力学的主要问题之一是在实验室和现场测试中确定的土壤特征参数的相关性和准确性。土壤参数的不准确性会严重影响随后计算的机械响应和理论上预测的沉降。将岩土工程现场测量的沉降值与根据实验室测试计算得出的沉降值进行比较时，通常会观察到显着差异。这就是为什么需要通过使用适当的数学模型通过反算从原位数据中评估土壤参数，并将结果与​​标准实验室湿度计测试确定的参数关联起来的原因。本文的目的是为此类过程提供一个示例。该应用程序与欧洲最现代化的废物处理场之一“ Croebern”有关。它已放置在莱比锡（德国）南部地区的晚期露天采矿区“ Espenhain”中。预先安装了水平测斜仪和引伸计，以测量时间和负载相关的垂直位移。这些测量提供了用于比较实际土壤行为和过程数学建模结果的数据。该数学模型还考虑了现场建设，勘探钻探以及实验室测试结果期间测得的垂直位移。对于一维情况，解析地解决了相应的数学问题；对于二维情况，则利用有限元法在数值上进行了求解。

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